mirror of
https://github.com/opelly27/Stockfish.git
synced 2026-05-20 07:27:46 +00:00
Tomasz Sobczyk
1197 lines
35 KiB
C++
1197 lines
35 KiB
C++
#include "stats.h"
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#include "sfen_stream.h"
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#include "packed_sfen.h"
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#include "sfen_writer.h"
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#include "thread.h"
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#include "position.h"
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#include "evaluate.h"
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#include "search.h"
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#include "nnue/evaluate_nnue.h"
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#include <array>
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#include <string>
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#include <map>
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#include <set>
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#include <iostream>
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#include <cmath>
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#include <algorithm>
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#include <cstdint>
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#include <sstream>
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#include <iomanip>
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#include <limits>
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#include <mutex>
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#include <optional>
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#include <type_traits>
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namespace Stockfish::Tools::Stats
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{
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struct Indentation
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{
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char character = ' ';
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int width_per_indent = 4;
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int num_indents = 0;
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[[nodiscard]] Indentation next() const
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{
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return Indentation{ character, width_per_indent, num_indents + 1 };
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}
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[[nodiscard]] std::string to_string() const
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{
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return std::string(num_indents * width_per_indent, character);
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}
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};
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template <typename IntT>
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[[nodiscard]] int get_num_base_10_digits(IntT v)
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{
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int digits = 1;
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while (v != 0)
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{
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digits += 1;
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v /= 10;
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}
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return digits;
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}
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[[nodiscard]] std::string left_pad_to_length(const std::string& str, char ch, int length)
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{
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const int str_size = static_cast<int>(str.size());
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if (str_size < length)
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{
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return std::string(length - str_size, ch) + str;
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}
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else
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{
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return str;
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}
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}
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[[nodiscard]] std::string right_pad_to_length(const std::string& str, char ch, int length)
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{
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const int str_size = static_cast<int>(str.size());
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if (str_size < length)
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{
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return str + std::string(length - str_size, ch);
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}
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else
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{
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return str;
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}
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}
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[[nodiscard]] std::string indent_text(const std::string& text, Indentation indent)
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{
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std::string delimiter = "\n";
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std::string indent_str = indent.to_string();
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std::string indented;
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std::string::size_type pos = 0;
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std::string::size_type prev = 0;
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while ((pos = text.find(delimiter, prev)) != std::string::npos)
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{
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std::string line = text.substr(prev, pos - prev);
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indented += indent_str + line + delimiter;
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prev = pos + delimiter.size();
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}
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{
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std::string line = text.substr(prev);
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indented += indent_str + line;
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}
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return indented;
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}
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struct IndentedTextBlock
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{
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Indentation indentation;
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std::string text;
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IndentedTextBlock(Indentation indent, std::string str) :
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indentation(indent),
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text(std::move(str))
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{
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}
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[[nodiscard]] static std::string join(const std::vector<IndentedTextBlock>& blocks, const std::string& delimiter)
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{
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std::string result;
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bool is_first = true;
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for (auto&& [indentation, text] : blocks)
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{
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if (!is_first)
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{
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result += delimiter;
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}
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result += indent_text(text, indentation);
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is_first = false;
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}
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return result;
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}
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};
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struct StatisticOutputEntryNode
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{
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[[nodiscard]] const std::vector<std::unique_ptr<StatisticOutputEntryNode>>& get_children() const
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{
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return m_children;
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}
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template <typename NodeT, typename... Ts>
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StatisticOutputEntryNode& emplace_child(Ts&&... args)
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{
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return *(m_children.emplace_back(std::make_unique<NodeT>(std::forward<Ts>(args)...)));
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}
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template <typename NodeT>
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StatisticOutputEntryNode& add_child(std::unique_ptr<NodeT>&& node)
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{
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return *(m_children.emplace_back(std::move(node)));
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}
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[[nodiscard]] virtual std::vector<IndentedTextBlock> to_indented_text_blocks(Indentation indent) const = 0;
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protected:
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std::vector<std::unique_ptr<StatisticOutputEntryNode>> m_children;
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void add_indented_children_blocks(std::vector<IndentedTextBlock>& blocks, Indentation indent) const
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{
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for (auto&& child : m_children)
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{
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auto part = child->to_indented_text_blocks(indent.next());
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blocks.insert(blocks.end(), part.begin(), part.end());
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}
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}
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};
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struct StatisticOutputEntryHeader : StatisticOutputEntryNode
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{
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StatisticOutputEntryHeader(const std::string& text) :
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m_text(text)
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{
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}
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[[nodiscard]] virtual std::vector<IndentedTextBlock> to_indented_text_blocks(Indentation indent) const override
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{
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std::vector<IndentedTextBlock> blocks;
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blocks.emplace_back(indent, m_text);
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this->add_indented_children_blocks(blocks, indent);
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return blocks;
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}
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private:
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std::string m_text;
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};
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template <typename T>
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struct StatisticOutputEntryValue : StatisticOutputEntryNode
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{
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StatisticOutputEntryValue(const std::string& name, const T& value, bool value_in_new_line = false) :
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m_value(name, value),
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m_value_in_new_line(value_in_new_line)
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{
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}
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[[nodiscard]] virtual std::vector<IndentedTextBlock> to_indented_text_blocks(Indentation indent) const override
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{
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std::vector<IndentedTextBlock> blocks;
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std::string value_str;
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if constexpr (std::is_same_v<T, std::string>)
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{
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value_str = m_value.second;
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}
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else
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{
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value_str = std::to_string(m_value.second);
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}
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if (m_value_in_new_line)
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{
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blocks.emplace_back(indent, m_value.first + ": ");
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blocks.emplace_back(indent.next(), value_str);
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}
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else
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{
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blocks.emplace_back(indent, m_value.first + ": " + value_str);
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}
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this->add_indented_children_blocks(blocks, indent);
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return blocks;
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}
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private:
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std::pair<std::string, T> m_value;
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bool m_value_in_new_line;
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};
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struct StatisticOutput
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{
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template <typename NodeT, typename... Ts>
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StatisticOutputEntryNode& emplace_node(Ts&&... args)
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{
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return *(m_nodes.emplace_back(std::make_unique<NodeT>(std::forward<Ts>(args)...)));
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}
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template <typename NodeT>
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StatisticOutputEntryNode& add_child(std::unique_ptr<NodeT>&& node)
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{
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return *(m_nodes.emplace_back(std::move(node)));
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}
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[[nodiscard]] const std::vector<std::unique_ptr<StatisticOutputEntryNode>>& get_nodes() const
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{
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return m_nodes;
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}
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void add(StatisticOutput&& other)
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{
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for (auto&& node : other.m_nodes)
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{
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m_nodes.emplace_back(std::move(node));
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}
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}
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[[nodiscard]] std::string to_string() const
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{
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std::vector<IndentedTextBlock> blocks;
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for (auto&& node : m_nodes)
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{
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auto part = node->to_indented_text_blocks(Indentation{});
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blocks.insert(blocks.end(), part.begin(), part.end());
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}
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return IndentedTextBlock::join(blocks, "\n");
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}
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private:
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std::vector<std::unique_ptr<StatisticOutputEntryNode>> m_nodes;
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};
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struct StatisticGathererBase
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{
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virtual void on_entry(const Position&, const Move&, const PackedSfenValue&) {}
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virtual void reset() = 0;
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[[nodiscard]] virtual const std::string& get_name() const = 0;
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[[nodiscard]] virtual StatisticOutput get_output() const = 0;
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};
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struct StatisticGathererFactoryBase
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{
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[[nodiscard]] virtual std::unique_ptr<StatisticGathererBase> create() const = 0;
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[[nodiscard]] virtual const std::string& get_name() const = 0;
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};
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template <typename T>
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struct StatisticGathererFactory : StatisticGathererFactoryBase
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{
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static inline std::string name = T::name;
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[[nodiscard]] std::unique_ptr<StatisticGathererBase> create() const override
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{
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return std::make_unique<T>();
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}
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[[nodiscard]] const std::string& get_name() const override
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{
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return name;
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}
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};
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struct StatisticGathererSet : StatisticGathererBase
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{
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void add(const StatisticGathererFactoryBase& factory)
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{
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const std::string name = factory.get_name();
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if (m_gatherers_names.count(name) == 0)
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{
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m_gatherers_names.insert(name);
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m_gatherers.emplace_back(factory.create());
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}
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}
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void add(std::unique_ptr<StatisticGathererBase>&& gatherer)
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{
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const std::string name = gatherer->get_name();
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if (m_gatherers_names.count(name) == 0)
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{
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m_gatherers_names.insert(name);
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m_gatherers.emplace_back(std::move(gatherer));
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}
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}
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void on_entry(const Position& pos, const Move& move, const PackedSfenValue& psv) override
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{
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for (auto& g : m_gatherers)
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{
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g->on_entry(pos, move, psv);
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}
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}
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void reset() override
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{
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for (auto& g : m_gatherers)
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{
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g->reset();
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}
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}
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[[nodiscard]] const std::string& get_name() const override
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{
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static std::string name = "SET";
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return name;
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}
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[[nodiscard]] StatisticOutput get_output() const override
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{
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StatisticOutput out;
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for (auto&& s : m_gatherers)
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{
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out.add(s->get_output());
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}
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return out;
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}
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private:
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std::vector<std::unique_ptr<StatisticGathererBase>> m_gatherers;
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std::set<std::string> m_gatherers_names;
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};
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struct StatisticGathererRegistry
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{
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void add_statistic_gatherers_by_group(
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StatisticGathererSet& gatherers,
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const std::string& group) const
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{
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auto it = m_gatherers_by_group.find(group);
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if (it != m_gatherers_by_group.end())
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{
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for (auto& factory : it->second)
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{
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gatherers.add(*factory);
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}
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}
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}
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template <typename T, typename... ArgsTs>
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void add(const ArgsTs&... group)
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{
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auto dummy = {(add_single<T>(group), 0)...};
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(void)dummy;
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add_single<T>("all");
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}
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private:
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std::map<std::string, std::vector<std::unique_ptr<StatisticGathererFactoryBase>>> m_gatherers_by_group;
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std::map<std::string, std::set<std::string>> m_gatherers_names_by_group;
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template <typename T, typename ArgT>
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void add_single(const ArgT& group)
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{
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using FactoryT = StatisticGathererFactory<T>;
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if (m_gatherers_names_by_group[group].count(FactoryT::name) == 0)
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{
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m_gatherers_by_group[group].emplace_back(std::make_unique<FactoryT>());
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m_gatherers_names_by_group[group].insert(FactoryT::name);
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}
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}
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};
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/*
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Statistic gatherer helpers
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*/
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template <typename T>
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struct StatPerSquare
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{
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StatPerSquare()
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{
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for (int i = 0; i < SQUARE_NB; ++i)
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m_squares[i] = 0;
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}
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[[nodiscard]] T& operator[](Square sq)
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{
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return m_squares[sq];
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}
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[[nodiscard]] const T& operator[](Square sq) const
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{
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return m_squares[sq];
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}
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[[nodiscard]] std::unique_ptr<StatisticOutputEntryNode> get_output_node(const std::string& name) const
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{
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int max_digits = 1;
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for (int i = 0; i < SQUARE_NB; ++i)
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{
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const int d = get_num_base_10_digits(m_squares[i]);
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if (d > max_digits)
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{
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max_digits = d;
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}
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}
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std::stringstream ss;
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for (int i = 0; i < SQUARE_NB; ++i)
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{
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ss << std::setw(max_digits) << m_squares[i ^ (int)SQ_A8] << ' ';
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if ((i + 1) % 8 == 0)
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ss << '\n';
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}
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return std::make_unique<StatisticOutputEntryValue<std::string>>(name, ss.str(), true);
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}
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private:
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std::array<T, SQUARE_NB> m_squares;
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};
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/*
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Definitions for specific statistic gatherers follow:
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*/
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struct PositionCounter : StatisticGathererBase
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{
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static inline std::string name = "PositionCounter";
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PositionCounter() :
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m_num_positions(0)
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{
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}
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void on_entry(const Position&, const Move&, const PackedSfenValue&) override
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{
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m_num_positions += 1;
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}
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void reset() override
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{
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m_num_positions = 0;
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}
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[[nodiscard]] const std::string& get_name() const override
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{
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return name;
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}
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[[nodiscard]] StatisticOutput get_output() const override
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{
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StatisticOutput out;
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out.emplace_node<StatisticOutputEntryValue<std::uint64_t>>("Number of positions", m_num_positions);
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return out;
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}
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private:
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std::uint64_t m_num_positions;
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};
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struct KingSquareCounter : StatisticGathererBase
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{
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static inline std::string name = "KingSquareCounter";
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KingSquareCounter() :
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m_white{},
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m_black{}
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{
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}
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void on_entry(const Position& pos, const Move&, const PackedSfenValue&) override
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{
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m_white[pos.square<KING>(WHITE)] += 1;
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m_black[pos.square<KING>(BLACK)] += 1;
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}
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void reset() override
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{
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m_white = StatPerSquare<std::uint64_t>{};
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m_black = StatPerSquare<std::uint64_t>{};
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}
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[[nodiscard]] const std::string& get_name() const override
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{
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return name;
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}
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[[nodiscard]] StatisticOutput get_output() const override
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{
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StatisticOutput out;
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auto& header = out.emplace_node<StatisticOutputEntryHeader>("King square distribution:");
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header.add_child(m_white.get_output_node("White king squares"));
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header.add_child(m_black.get_output_node("Black king squares"));
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return out;
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}
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private:
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StatPerSquare<std::uint64_t> m_white;
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StatPerSquare<std::uint64_t> m_black;
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};
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struct MoveFromCounter : StatisticGathererBase
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{
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static inline std::string name = "MoveFromCounter";
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MoveFromCounter() :
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m_white{},
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m_black{}
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{
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}
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void on_entry(const Position& pos, const Move& move, const PackedSfenValue&) override
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{
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if (pos.side_to_move() == WHITE)
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m_white[from_sq(move)] += 1;
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else
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m_black[from_sq(move)] += 1;
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}
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void reset() override
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{
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m_white = StatPerSquare<std::uint64_t>{};
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m_black = StatPerSquare<std::uint64_t>{};
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}
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[[nodiscard]] const std::string& get_name() const override
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{
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return name;
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}
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[[nodiscard]] StatisticOutput get_output() const override
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{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Move from square distribution:");
|
|
header.add_child(m_white.get_output_node("White move from squares"));
|
|
header.add_child(m_black.get_output_node("Black move from squares"));
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
StatPerSquare<std::uint64_t> m_white;
|
|
StatPerSquare<std::uint64_t> m_black;
|
|
};
|
|
|
|
struct MoveToCounter : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "MoveToCounter";
|
|
|
|
MoveToCounter() :
|
|
m_white{},
|
|
m_black{}
|
|
{
|
|
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move& move, const PackedSfenValue&) override
|
|
{
|
|
if (pos.side_to_move() == WHITE)
|
|
m_white[to_sq(move)] += 1;
|
|
else
|
|
m_black[to_sq(move)] += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
m_white = StatPerSquare<std::uint64_t>{};
|
|
m_black = StatPerSquare<std::uint64_t>{};
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Move to square distribution:");
|
|
header.add_child(m_white.get_output_node("White move to squares"));
|
|
header.add_child(m_black.get_output_node("Black move to squares"));
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
StatPerSquare<std::uint64_t> m_white;
|
|
StatPerSquare<std::uint64_t> m_black;
|
|
};
|
|
|
|
struct MoveTypeCounter : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "MoveTypeCounter";
|
|
|
|
MoveTypeCounter() :
|
|
m_total(0),
|
|
m_normal(0),
|
|
m_capture(0),
|
|
m_promotion(0),
|
|
m_castling(0),
|
|
m_enpassant(0)
|
|
{
|
|
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move& move, const PackedSfenValue&) override
|
|
{
|
|
m_total += 1;
|
|
|
|
if (!pos.empty(to_sq(move)))
|
|
m_capture += 1;
|
|
|
|
if (type_of(move) == CASTLING)
|
|
m_castling += 1;
|
|
else if (type_of(move) == PROMOTION)
|
|
m_promotion += 1;
|
|
else if (type_of(move) == EN_PASSANT)
|
|
m_enpassant += 1;
|
|
else if (type_of(move) == NORMAL)
|
|
m_normal += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
m_total = 0;
|
|
m_normal = 0;
|
|
m_capture = 0;
|
|
m_promotion = 0;
|
|
m_castling = 0;
|
|
m_enpassant = 0;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Number of moves by type:");
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Total", m_total);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Normal", m_normal);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Capture", m_capture);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Promotion", m_promotion);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Castling", m_castling);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("En-passant", m_enpassant);
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_total;
|
|
std::uint64_t m_normal;
|
|
std::uint64_t m_capture;
|
|
std::uint64_t m_promotion;
|
|
std::uint64_t m_castling;
|
|
std::uint64_t m_enpassant;
|
|
};
|
|
|
|
struct PieceCountCounter : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "PieceCountCounter";
|
|
|
|
PieceCountCounter()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move&, const PackedSfenValue&) override
|
|
{
|
|
m_piece_count_hist[popcount(pos.pieces())] += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
for (int i = 0; i < SQUARE_NB; ++i)
|
|
m_piece_count_hist[i] = 0;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Number of positions by piece count:");
|
|
bool do_write = false;
|
|
for (int i = SQUARE_NB - 1; i >= 0; --i)
|
|
{
|
|
if (m_piece_count_hist[i] != 0)
|
|
do_write = true;
|
|
|
|
// Start writing when the first non-zero number pops up.
|
|
if (do_write)
|
|
{
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>(std::to_string(i), m_piece_count_hist[i]);
|
|
}
|
|
}
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_piece_count_hist[SQUARE_NB];
|
|
};
|
|
|
|
struct MovedPieceTypeCounter : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "MovedPieceTypeCounter";
|
|
|
|
MovedPieceTypeCounter()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move& move, const PackedSfenValue&) override
|
|
{
|
|
m_moved_piece_type_hist[type_of(pos.piece_on(from_sq(move)))] += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
for (int i = 0; i < PIECE_TYPE_NB; ++i)
|
|
m_moved_piece_type_hist[i] = 0;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Number of moves by piece type:");
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Pawn", m_moved_piece_type_hist[PAWN]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Knight", m_moved_piece_type_hist[KNIGHT]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Bishop", m_moved_piece_type_hist[BISHOP]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Rook", m_moved_piece_type_hist[ROOK]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Queen", m_moved_piece_type_hist[QUEEN]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("King", m_moved_piece_type_hist[KING]);
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_moved_piece_type_hist[PIECE_TYPE_NB];
|
|
};
|
|
|
|
struct PlyDiscontinuitiesCounter : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "PlyDiscontinuitiesCounter";
|
|
|
|
PlyDiscontinuitiesCounter()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move&, const PackedSfenValue&) override
|
|
{
|
|
const int current_ply = pos.game_ply();
|
|
if (m_prev_ply != -1)
|
|
{
|
|
const bool is_discontinuity = (current_ply != (m_prev_ply + 1));
|
|
if (is_discontinuity)
|
|
{
|
|
m_num_discontinuities += 1;
|
|
}
|
|
}
|
|
m_prev_ply = current_ply;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
m_num_discontinuities = 0;
|
|
m_prev_ply = -1;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
out.emplace_node<StatisticOutputEntryValue<std::uint64_t>>("Number of ply discontinuities (usually games)", m_num_discontinuities);
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_num_discontinuities;
|
|
int m_prev_ply;
|
|
};
|
|
|
|
struct MaterialImbalanceDistribution : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "MaterialImbalanceDistribution";
|
|
static constexpr int max_imbalance = 64;
|
|
|
|
MaterialImbalanceDistribution()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move&, const PackedSfenValue&) override
|
|
{
|
|
const int imbalance = get_simple_material(pos, WHITE) - get_simple_material(pos, BLACK);
|
|
const int imbalance_idx = std::clamp(imbalance, -max_imbalance, max_imbalance) + max_imbalance;
|
|
m_num_imbalances[imbalance_idx] += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
for (auto& imb : m_num_imbalances)
|
|
imb = 0;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Number of \"simple eval\" imbalances for white's perspective:");
|
|
const int key_length = get_num_base_10_digits(max_imbalance) + 1;
|
|
for (int i = -max_imbalance; i <= max_imbalance; ++i)
|
|
{
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>(
|
|
left_pad_to_length(std::to_string(i), ' ', key_length),
|
|
m_num_imbalances[i + max_imbalance]
|
|
);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_num_imbalances[max_imbalance + 1 + max_imbalance];
|
|
|
|
[[nodiscard]] int get_simple_material(const Position& pos, Color c)
|
|
{
|
|
return
|
|
9 * pos.count<QUEEN>(c)
|
|
+ 5 * pos.count<ROOK>(c)
|
|
+ 3 * pos.count<BISHOP>(c)
|
|
+ 3 * pos.count<KNIGHT>(c)
|
|
+ pos.count<PAWN>(c);
|
|
}
|
|
};
|
|
|
|
struct ResultDistribution : StatisticGathererBase
|
|
{
|
|
static inline std::string name = "ResultDistribution";
|
|
|
|
ResultDistribution()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move&, const PackedSfenValue& psv) override
|
|
{
|
|
const Color stm = pos.side_to_move();
|
|
if (psv.game_result == 0)
|
|
{
|
|
m_draws += 1;
|
|
}
|
|
else if (psv.game_result == 1)
|
|
{
|
|
m_stm_wins += 1;
|
|
m_wins[stm] += 1;
|
|
}
|
|
else
|
|
{
|
|
m_stm_loses += 1;
|
|
m_wins[~stm] += 1;
|
|
}
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
m_wins[WHITE] = 0;
|
|
m_wins[BLACK] = 0;
|
|
m_draws = 0;
|
|
m_stm_wins = 0;
|
|
m_stm_loses = 0;
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Distribution of results:");
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("White wins", m_wins[WHITE]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Black wins", m_wins[BLACK]);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Draws", m_draws);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Side to move wins", m_stm_wins);
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>("Side to move loses", m_stm_loses);
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
std::uint64_t m_wins[COLOR_NB];
|
|
std::uint64_t m_draws;
|
|
std::uint64_t m_stm_wins;
|
|
std::uint64_t m_stm_loses;
|
|
};
|
|
|
|
template <int MaxManCount>
|
|
struct EndgameConfigurations : StatisticGathererBase
|
|
{
|
|
static_assert(MaxManCount < 10);
|
|
static_assert(MaxManCount > 2);
|
|
|
|
static inline std::string name = std::string("EndgameConfigurations") + std::to_string(MaxManCount);
|
|
|
|
using MaterialKey = std::uint64_t;
|
|
|
|
EndgameConfigurations()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void on_entry(const Position& pos, const Move&, const PackedSfenValue&) override
|
|
{
|
|
const int piece_count = pos.count<ALL_PIECES>();
|
|
if (piece_count > MaxManCount)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const auto index = get_material_key_for_position(pos);
|
|
m_counts[index] += 1;
|
|
}
|
|
|
|
void reset() override
|
|
{
|
|
m_counts.clear();
|
|
}
|
|
|
|
[[nodiscard]] const std::string& get_name() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
[[nodiscard]] StatisticOutput get_output() const override
|
|
{
|
|
StatisticOutput out;
|
|
auto& header = out.emplace_node<StatisticOutputEntryHeader>("Distribution of endgame configurations:");
|
|
std::vector<std::pair<MaterialKey, std::uint64_t>> flattened(m_counts.begin(), m_counts.end());
|
|
std::sort(flattened.begin(), flattened.end(), [](const auto& lhs, const auto& rhs) { return lhs.second > rhs.second; });
|
|
for (auto&& [index, count] : flattened)
|
|
{
|
|
header.emplace_child<StatisticOutputEntryValue<std::uint64_t>>(
|
|
get_padded_name_by_material_key(index),
|
|
count
|
|
);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
private:
|
|
// can support up to 17 pieces.
|
|
// it's basically the material string encoded as a number in base 8
|
|
// encoding is from the least significant digit to most significant
|
|
// v=1, P=2, N=3, B=4, R=5, Q=6, K=7. 0 indicates end
|
|
std::map<MaterialKey, std::uint64_t> m_counts;
|
|
|
|
[[nodiscard]] MaterialKey get_material_key_for_position(const Position& pos) const
|
|
{
|
|
MaterialKey index = 0;
|
|
std::uint64_t shift = 0;
|
|
|
|
index += 7 << shift; shift += 3;
|
|
|
|
for (int i = 0; i < pos.count<PAWN>(WHITE); ++i) { index += 2 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<BISHOP>(WHITE); ++i) { index += 3 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<KNIGHT>(WHITE); ++i) { index += 4 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<ROOK>(WHITE); ++i) { index += 5 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<QUEEN>(WHITE); ++i) { index += 6 << shift; shift += 3; }
|
|
|
|
index += 1 << shift; shift += 3;
|
|
index += 7 << shift; shift += 3;
|
|
|
|
for (int i = 0; i < pos.count<PAWN>(BLACK); ++i) { index += 2 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<BISHOP>(BLACK); ++i) { index += 3 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<KNIGHT>(BLACK); ++i) { index += 4 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<ROOK>(BLACK); ++i) { index += 5 << shift; shift += 3; }
|
|
for (int i = 0; i < pos.count<QUEEN>(BLACK); ++i) { index += 6 << shift; shift += 3; }
|
|
|
|
return index;
|
|
}
|
|
|
|
[[nodiscard]] std::string get_padded_name_by_material_key(MaterialKey index) const
|
|
{
|
|
std::string sides[COLOR_NB];
|
|
Color side = WHITE;
|
|
|
|
while (index != 0)
|
|
{
|
|
switch (index % 8)
|
|
{
|
|
case 1:
|
|
side = BLACK;
|
|
break;
|
|
case 2:
|
|
sides[side] += 'P';
|
|
break;
|
|
case 3:
|
|
sides[side] += 'N';
|
|
break;
|
|
case 4:
|
|
sides[side] += 'B';
|
|
break;
|
|
case 5:
|
|
sides[side] += 'R';
|
|
break;
|
|
case 6:
|
|
sides[side] += 'Q';
|
|
break;
|
|
case 7:
|
|
sides[side] += 'K';
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
index >>= 3;
|
|
}
|
|
|
|
return
|
|
right_pad_to_length(sides[WHITE], ' ', MaxManCount-1)
|
|
+ 'v'
|
|
+ right_pad_to_length(sides[BLACK], ' ', MaxManCount-1);
|
|
}
|
|
};
|
|
|
|
/*
|
|
This function provides factories for all possible statistic gatherers.
|
|
Each new statistic gatherer needs to be added there.
|
|
*/
|
|
const auto& get_statistics_gatherers_registry()
|
|
{
|
|
static StatisticGathererRegistry s_reg = [](){
|
|
StatisticGathererRegistry reg;
|
|
|
|
reg.add<PositionCounter>("position_count");
|
|
|
|
reg.add<KingSquareCounter>("king", "king_square_count");
|
|
|
|
reg.add<MoveFromCounter>("move", "move_from_count");
|
|
reg.add<MoveToCounter>("move", "move_to_count");
|
|
reg.add<MoveTypeCounter>("move", "move_type");
|
|
reg.add<MovedPieceTypeCounter>("move", "moved_piece_type");
|
|
|
|
reg.add<PlyDiscontinuitiesCounter>("ply_discontinuities");
|
|
|
|
reg.add<MaterialImbalanceDistribution>("material_imbalance");
|
|
|
|
reg.add<ResultDistribution>("results");
|
|
|
|
reg.add<PieceCountCounter>("piece_count");
|
|
|
|
reg.add<EndgameConfigurations<6>>("endgames_6man");
|
|
|
|
return reg;
|
|
}();
|
|
|
|
return s_reg;
|
|
}
|
|
|
|
void do_gather_statistics(
|
|
const std::string& filename,
|
|
StatisticGathererSet& statistic_gatherers,
|
|
std::uint64_t max_count)
|
|
{
|
|
Thread* th = Threads.main();
|
|
Position& pos = th->rootPos;
|
|
StateInfo si;
|
|
|
|
auto in = Tools::open_sfen_input_file(filename);
|
|
|
|
auto on_entry = [&](const Position& position, const Move& move, const PackedSfenValue& psv) {
|
|
statistic_gatherers.on_entry(position, move, psv);
|
|
};
|
|
|
|
if (in == nullptr)
|
|
{
|
|
std::cerr << "Invalid input file type.\n";
|
|
return;
|
|
}
|
|
|
|
uint64_t num_processed = 0;
|
|
while (num_processed < max_count)
|
|
{
|
|
auto v = in->next();
|
|
if (!v.has_value())
|
|
break;
|
|
|
|
auto& psv = v.value();
|
|
|
|
pos.set_from_packed_sfen(psv.sfen, &si, th);
|
|
|
|
on_entry(pos, (Move)psv.move, psv);
|
|
|
|
num_processed += 1;
|
|
if (num_processed % 1'000'000 == 0)
|
|
{
|
|
std::cout << "Processed " << num_processed << " positions.\n";
|
|
}
|
|
}
|
|
|
|
std::cout << "Finished gathering statistics.\n\n";
|
|
std::cout << "Results:\n\n";
|
|
|
|
std::cout << statistic_gatherers.get_output().to_string();
|
|
}
|
|
|
|
void gather_statistics(std::istringstream& is)
|
|
{
|
|
Eval::NNUE::init();
|
|
|
|
auto& registry = get_statistics_gatherers_registry();
|
|
|
|
StatisticGathererSet statistic_gatherers;
|
|
|
|
std::string input_file;
|
|
std::uint64_t max_count = std::numeric_limits<std::uint64_t>::max();
|
|
|
|
while(true)
|
|
{
|
|
std::string token;
|
|
is >> token;
|
|
|
|
if (token == "")
|
|
break;
|
|
|
|
if (token == "input_file")
|
|
is >> input_file;
|
|
else if (token == "max_count")
|
|
is >> max_count;
|
|
else
|
|
registry.add_statistic_gatherers_by_group(statistic_gatherers, token);
|
|
}
|
|
|
|
do_gather_statistics(input_file, statistic_gatherers, max_count);
|
|
}
|
|
|
|
}
|