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posledni vereze NE se spravnymi remizamy 5

Sep 1st, 2024
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Python 29.62 KB | Science | 0 0
  1. import chess
  2. from typing import Iterator, Optional, Dict, Tuple
  3. from chess import Move, BB_ALL, Bitboard, PieceType, Color
  4. import time
  5. from collections import deque
  6. import threading
  7.  
  8. # Definice nových figur
  9. AMAZON = 7
  10. CYRIL = 8
  11. EVE = 9
  12.  
  13. # Rozšíření seznamu PIECE_SYMBOLS
  14. chess.PIECE_SYMBOLS.append('a')
  15. chess.PIECE_SYMBOLS.append('c')
  16. chess.PIECE_SYMBOLS.append('e')
  17.  
  18. class CustomBoard(chess.Board):
  19.     def __init__(self, fen=None):
  20.         self.amazons_white = chess.BB_EMPTY
  21.         self.amazons_black = chess.BB_EMPTY
  22.         self.cyrils_white = chess.BB_EMPTY
  23.         self.cyrils_black = chess.BB_EMPTY
  24.         self.eves_white = chess.BB_EMPTY
  25.         self.eves_black = chess.BB_EMPTY
  26.         super().__init__(None)
  27.         if fen:
  28.             self.set_custom_fen(fen)
  29.         self.debug_amazons()
  30.         self.debug_cyrils()
  31.         self.debug_eves()
  32.  
  33.     def clear_square(self, square):
  34.         super()._remove_piece_at(square)
  35.         self.amazons_white &= ~chess.BB_SQUARES[square]
  36.         self.amazons_black &= ~chess.BB_SQUARES[square]
  37.         self.cyrils_white &= ~chess.BB_SQUARES[square]
  38.         self.cyrils_black &= ~chess.BB_SQUARES[square]
  39.         self.eves_white &= ~chess.BB_SQUARES[square]
  40.         self.eves_black &= ~chess.BB_SQUARES[square]
  41.  
  42.     def set_custom_fen(self, fen):
  43.         parts = fen.split()
  44.         board_part = parts[0]
  45.    
  46.         self.clear()
  47.         self.amazons_white = chess.BB_EMPTY
  48.         self.amazons_black = chess.BB_EMPTY
  49.         self.cyrils_white = chess.BB_EMPTY
  50.         self.cyrils_black = chess.BB_EMPTY
  51.         self.eves_white = chess.BB_EMPTY
  52.         self.eves_black = chess.BB_EMPTY
  53.    
  54.         square = 56
  55.         for c in board_part:
  56.             if c == '/':
  57.                 square -= 16
  58.             elif c.isdigit():
  59.                 square += int(c)
  60.             else:
  61.                 color = chess.WHITE if c.isupper() else chess.BLACK
  62.                 if c.upper() == 'A':
  63.                     if color == chess.WHITE:
  64.                         self.amazons_white |= chess.BB_SQUARES[square]
  65.                     else:
  66.                         self.amazons_black |= chess.BB_SQUARES[square]
  67.                     piece_type = AMAZON
  68.                 elif c.upper() == 'C':
  69.                     if color == chess.WHITE:
  70.                         self.cyrils_white |= chess.BB_SQUARES[square]
  71.                     else:
  72.                         self.cyrils_black |= chess.BB_SQUARES[square]
  73.                     piece_type = CYRIL
  74.                 elif c.upper() == 'E':
  75.                     if color == chess.WHITE:
  76.                         self.eves_white |= chess.BB_SQUARES[square]
  77.                     else:
  78.                         self.eves_black |= chess.BB_SQUARES[square]
  79.                     piece_type = EVE
  80.                 elif c == 'P' and chess.square_rank(square) == 7:
  81.                     piece_type = AMAZON
  82.                     color = chess.WHITE
  83.                 elif c == 'p' and chess.square_rank(square) == 0:
  84.                     piece_type = AMAZON
  85.                     color = chess.BLACK
  86.                 else:
  87.                     piece_type = chess.PIECE_SYMBOLS.index(c.lower())
  88.                
  89.                 self._set_piece_at(square, piece_type, color)
  90.                 square += 1
  91.    
  92.         self.turn = chess.WHITE if parts[1] == 'w' else chess.BLACK
  93.         self.castling_rights = chess.BB_EMPTY
  94.         if '-' not in parts[2]:
  95.             if 'K' in parts[2]: self.castling_rights |= chess.BB_H1
  96.             if 'Q' in parts[2]: self.castling_rights |= chess.BB_A1
  97.             if 'k' in parts[2]: self.castling_rights |= chess.BB_H8
  98.             if 'q' in parts[2]: self.castling_rights |= chess.BB_A8
  99.         self.ep_square = chess.parse_square(parts[3]) if parts[3] != '-' else None
  100.            
  101.  
  102.     def _set_piece_at(self, square: chess.Square, piece_type: PieceType, color: Color) -> None:
  103.         self.clear_square(square)
  104.         super()._set_piece_at(square, piece_type, color)
  105.         if piece_type == AMAZON:
  106.             if color == chess.WHITE:
  107.                 self.amazons_white |= chess.BB_SQUARES[square]
  108.             else:
  109.                 self.amazons_black |= chess.BB_SQUARES[square]
  110.         elif piece_type == CYRIL:
  111.             if color == chess.WHITE:
  112.                 self.cyrils_white |= chess.BB_SQUARES[square]
  113.             else:
  114.                 self.cyrils_black |= chess.BB_SQUARES[square]
  115.         elif piece_type == EVE:
  116.             if color == chess.WHITE:
  117.                 self.eves_white |= chess.BB_SQUARES[square]
  118.             else:
  119.                 self.eves_black |= chess.BB_SQUARES[square]
  120.  
  121.     def piece_at(self, square: chess.Square) -> Optional[chess.Piece]:
  122.         if self.amazons_white & chess.BB_SQUARES[square]:
  123.             return chess.Piece(AMAZON, chess.WHITE)
  124.         elif self.amazons_black & chess.BB_SQUARES[square]:
  125.             return chess.Piece(AMAZON, chess.BLACK)
  126.         elif self.cyrils_white & chess.BB_SQUARES[square]:
  127.             return chess.Piece(CYRIL, chess.WHITE)
  128.         elif self.cyrils_black & chess.BB_SQUARES[square]:
  129.             return chess.Piece(CYRIL, chess.BLACK)
  130.         elif self.eves_white & chess.BB_SQUARES[square]:
  131.             return chess.Piece(EVE, chess.WHITE)
  132.         elif self.eves_black & chess.BB_SQUARES[square]:
  133.             return chess.Piece(EVE, chess.BLACK)
  134.         return super().piece_at(square)
  135.  
  136.     def generate_pseudo_legal_moves(self, from_mask: Bitboard = BB_ALL, to_mask: Bitboard = BB_ALL) -> Iterator[Move]:
  137.         our_pieces = self.occupied_co[self.turn]
  138.         if self.turn == chess.WHITE:
  139.             our_amazons = self.amazons_white
  140.             our_cyrils = self.cyrils_white
  141.             our_eves = self.eves_white
  142.         else:
  143.             our_amazons = self.amazons_black
  144.             our_cyrils = self.cyrils_black
  145.             our_eves = self.eves_black
  146.    
  147.         # Generování tahů pro amazonky
  148.         for from_square in chess.scan_forward(our_amazons & from_mask):
  149.             attacks = self.amazon_attacks(from_square)
  150.             valid_moves = attacks & ~our_pieces & to_mask
  151.             for to_square in chess.scan_forward(valid_moves):
  152.                 yield Move(from_square, to_square)
  153.    
  154.         # Generování tahů pro Cyrily
  155.         for from_square in chess.scan_forward(our_cyrils & from_mask):
  156.             attacks = self.cyril_attacks(from_square)
  157.             valid_moves = attacks & ~our_pieces & to_mask
  158.             for to_square in chess.scan_forward(valid_moves):
  159.                 yield Move(from_square, to_square)
  160.    
  161.         # Generování tahů pro Evy
  162.         for from_square in chess.scan_forward(our_eves & from_mask):
  163.             attacks = self.eve_attacks(from_square)
  164.             valid_moves = attacks & ~our_pieces & to_mask
  165.             for to_square in chess.scan_forward(valid_moves):
  166.                 yield Move(from_square, to_square)
  167.    
  168.         # Generování tahů pro standardní figury
  169.         for move in super().generate_pseudo_legal_moves(from_mask, to_mask):
  170.             piece = self.piece_at(move.from_square)
  171.             if piece and piece.piece_type not in [AMAZON, CYRIL, EVE]:
  172.                 yield move
  173.  
  174.     def queen_attacks(self, square):
  175.         return self.bishop_attacks(square) | self.rook_attacks(square)
  176.  
  177.     def bishop_attacks(self, square):
  178.         return chess.BB_DIAG_ATTACKS[square][self.occupied & chess.BB_DIAG_MASKS[square]]
  179.  
  180.     def rook_attacks(self, square):
  181.         return (chess.BB_RANK_ATTACKS[square][self.occupied & chess.BB_RANK_MASKS[square]] |
  182.                 chess.BB_FILE_ATTACKS[square][self.occupied & chess.BB_FILE_MASKS[square]])
  183.  
  184.     def amazon_attacks(self, square):
  185.         return self.queen_attacks(square) | chess.BB_KNIGHT_ATTACKS[square]
  186.  
  187.     def cyril_attacks(self, square):
  188.         return self.rook_attacks(square) | chess.BB_KNIGHT_ATTACKS[quare]
  189.  
  190.     def eve_attacks(self, square):
  191.         return self.bishop_attacks(square) | chess.BB_KNIGHT_ATTACKS[square]
  192.  
  193.     def is_pseudo_legal(self, move):
  194.         from_square = move.from_square
  195.         to_square = move.to_square
  196.         piece = self.piece_at(from_square)
  197.    
  198.         if not piece or piece.color != self.turn:
  199.             return False
  200.    
  201.         if self.occupied_co[self.turn] & chess.BB_SQUARES[to_square]:
  202.             return False
  203.    
  204.         if self.is_castling(move):
  205.             return True
  206.    
  207.         if piece.piece_type == AMAZON:
  208.             return bool(self.amazon_attacks(from_square) & chess.BB_SQUARES[to_square])
  209.         elif piece.piece_type == CYRIL:
  210.             return bool(self.cyril_attacks(from_square) & chess.BB_SQUARES[to_square])
  211.         elif piece.piece_type == EVE:
  212.             return bool(self.eve_attacks(from_square) & chess.BB_SQUARES[to_square])
  213.         else:
  214.             return super().is_pseudo_legal(move)
  215.  
  216.     def is_legal(self, move):
  217.         if not self.is_pseudo_legal(move):
  218.             return False
  219.    
  220.         from_square = move.from_square
  221.         to_square = move.to_square
  222.         piece = self.piece_at(from_square)
  223.         captured_piece = self.piece_at(to_square)
  224.    
  225.         # Kontrola pro všechny figury: nelze brát figuru stejné barvy
  226.         if captured_piece and captured_piece.color == piece.color:
  227.             return False
  228.    
  229.         # Dočasně provést tah
  230.         self.clear_square(from_square)
  231.         self._set_piece_at(to_square, piece.piece_type, piece.color)
  232.    
  233.         # Najít pozici krále
  234.         king_square = to_square if piece.piece_type == chess.KING else self.king(self.turn)
  235.    
  236.         # Kontrola, zda je král v šachu po tahu
  237.         is_check = self._is_attacked_by(not self.turn, king_square) if king_square is not None else False
  238.    
  239.         # Vrátit pozici do původního stavu
  240.         self.clear_square(to_square)
  241.         self._set_piece_at(from_square, piece.piece_type, piece.color)
  242.         if captured_piece:
  243.             self._set_piece_at(to_square, captured_piece.piece_type, captured_piece.color)
  244.    
  245.         return not is_check
  246.        
  247.  
  248.     def _is_attacked_by(self, color, square):
  249.         attackers = self.attackers(color, square)
  250.         return bool(attackers)
  251.  
  252.     def attackers(self, color: Color, square: chess.Square) -> Bitboard:
  253.         if square is None:
  254.             return chess.BB_EMPTY
  255.    
  256.         attackers = chess.BB_EMPTY
  257.         occupied = self.occupied
  258.         occupied_co = self.occupied_co[color]
  259.    
  260.         # Jezdci
  261.         attackers |= chess.BB_KNIGHT_ATTACKS[square] & self.knights & occupied_co
  262.    
  263.         # Král
  264.         attackers |= chess.BB_KING_ATTACKS[square] & self.kings & occupied_co
  265.    
  266.         # Pěšci
  267.         if color == chess.WHITE:
  268.             attackers |= chess.BB_PAWN_ATTACKS[chess.BLACK][square] & self.pawns & occupied_co
  269.         else:
  270.             attackers |= chess.BB_PAWN_ATTACKS[chess.WHITE][square] & self.pawns & occupied_co
  271.    
  272.         # Střelcové útoky (včetně dam a amazonek)
  273.         bishop_attacks = chess.BB_DIAG_ATTACKS[square][occupied & chess.BB_DIAG_MASKS[square]]
  274.         attackers |= bishop_attacks & ((self.bishops | self.queens) & occupied_co)
  275.    
  276.         # Věžové útoky (včetně dam, amazonek a cyrilů)
  277.         rook_attacks = (
  278.             chess.BB_RANK_ATTACKS[square][occupied & chess.BB_RANK_MASKS[square]] |
  279.             chess.BB_FILE_ATTACKS[square][occupied & chess.BB_FILE_MASKS[square]]
  280.         )
  281.         attackers |= rook_attacks & ((self.rooks | self.queens) & occupied_co)
  282.    
  283.         # Amazonky (Dáma + Jezdec)
  284.         amazons = self.amazons_white if color == chess.WHITE else self.amazons_black
  285.         amazon_attacks = bishop_attacks | rook_attacks | chess.BB_KNIGHT_ATTACKS[square]
  286.         attackers |= amazon_attacks & amazons
  287.    
  288.         # Cyrilové (Věž + Jezdec)
  289.         cyrils = self.cyrils_white if color == chess.WHITE else self.cyrils_black
  290.         cyril_attacks = rook_attacks | chess.BB_KNIGHT_ATTACKS[square]
  291.         attackers |= cyril_attacks & cyrils
  292.    
  293.         # Evy (Střelec + Jezdec)
  294.         eves = self.eves_white if color == chess.WHITE else self.eves_black
  295.         eve_attacks = bishop_attacks | chess.BB_KNIGHT_ATTACKS[square]
  296.         attackers |= eve_attacks & eves
  297.    
  298.         return attackers
  299.        
  300.     def push(self, move):
  301.         if not self.is_legal(move):
  302.             raise ValueError(f"Move {move} is not legal in position {self.fen()}")
  303.  
  304.         piece = self.piece_at(move.from_square)
  305.         captured_piece = self.piece_at(move.to_square)
  306.  
  307.         self.clear_square(move.from_square)
  308.         self.clear_square(move.to_square)
  309.         self._set_piece_at(move.to_square, piece.piece_type, piece.color)
  310.  
  311.         self.turn = not self.turn
  312.  
  313.         self.move_stack.append((move, captured_piece))
  314.  
  315.     def pop(self):
  316.         if not self.move_stack:
  317.             return None
  318.  
  319.         move, captured_piece = self.move_stack.pop()
  320.  
  321.         piece = self.piece_at(move.to_square)
  322.        
  323.         self.clear_square(move.from_square)
  324.         self.clear_square(move.to_square)
  325.  
  326.         self._set_piece_at(move.from_square, piece.piece_type, piece.color)
  327.  
  328.         if captured_piece:
  329.             self._set_piece_at(move.to_square, captured_piece.piece_type, captured_piece.color)
  330.  
  331.         self.turn = not self.turn
  332.  
  333.         return move
  334.  
  335.     def is_check(self):
  336.         king_square = self.king(self.turn)
  337.         if king_square is None:
  338.             return False
  339.         is_check = self._is_attacked_by(not self.turn, king_square)
  340.         return is_check
  341.  
  342.     def is_checkmate(self):
  343.         if not self.is_check():
  344.             return False
  345.         legal_moves = list(self.generate_legal_moves())
  346.         return len(legal_moves) == 0
  347.  
  348.     def is_game_over(self):
  349.         return self.is_checkmate() or self.is_stalemate() or self.is_insufficient_material()
  350.  
  351.     def is_stalemate(self):
  352.         if self.is_check():
  353.             return False
  354.         legal_moves = list(self.generate_legal_moves())
  355.         return len(legal_moves) == 0
  356.    
  357.     def is_insufficient_material(self):
  358.         return (self.pawns | self.rooks | self.queens | self.amazons_white | self.amazons_black |
  359.                 self.cyrils_white | self.cyrils_black | self.eves_white | self.eves_black) == 0 and (
  360.             chess.popcount(self.occupied) <= 3
  361.         )
  362.  
  363.     def generate_legal_moves(self, from_mask=chess.BB_ALL, to_mask=chess.BB_ALL):
  364.         for move in self.generate_pseudo_legal_moves(from_mask, to_mask):
  365.             if self.is_legal(move):
  366.                 yield move
  367.  
  368.     def debug_amazons(self):
  369.         pass
  370.  
  371.     def debug_cyrils(self):
  372.         pass
  373.  
  374.     def debug_eves(self):
  375.         pass
  376.  
  377.     def piece_symbol(self, piece):
  378.         if piece is None:
  379.             return '.'
  380.         if piece.piece_type == AMAZON:
  381.             return 'A' if piece.color == chess.WHITE else 'a'
  382.         if piece.piece_type == CYRIL:
  383.             return 'C' if piece.color == chess.WHITE else 'c'
  384.         if piece.piece_type == EVE:
  385.             return 'E' if piece.color == chess.WHITE else 'e'
  386.         return piece.symbol()
  387.  
  388.     def piece_type_at(self, square):
  389.         if (self.amazons_white | self.amazons_black) & chess.BB_SQUARES[square]:
  390.             return AMAZON
  391.         if (self.cyrils_white | self.cyrils_black) & chess.BB_SQUARES[square]:
  392.             return CYRIL
  393.         if (self.eves_white | self.eves_black) & chess.BB_SQUARES[square]:
  394.             return EVE
  395.         return super().piece_type_at(square)
  396.  
  397.     def color_at(self, square):
  398.         if self.amazons_white & chess.BB_SQUARES[square]:
  399.             return chess.WHITE
  400.         if self.amazons_black & chess.BB_SQUARES[square]:
  401.             return chess.BLACK
  402.         if self.cyrils_white & chess.BB_SQUARES[square]:
  403.             return chess.WHITE
  404.         if self.cyrils_black & chess.BB_SQUARES[square]:
  405.             return chess.BLACK
  406.         if self.eves_white & chess.BB_SQUARES[square]:
  407.             return chess.WHITE
  408.         if self.eves_black & chess.BB_SQUARES[square]:
  409.             return chess.BLACK
  410.         return super().color_at(square)
  411.  
  412.     @property
  413.     def legal_moves(self):
  414.         return list(self.generate_legal_moves())
  415.  
  416.     def __str__(self):
  417.         builder = []
  418.         for square in chess.SQUARES_180:
  419.             piece = self.piece_at(square)
  420.             symbol = self.piece_symbol(piece) if piece else '.'
  421.             builder.append(symbol)
  422.             if chess.square_file(square) == 7:
  423.                 if square != chess.H1:
  424.                     builder.append('\n')
  425.         return ''.join(builder)
  426.  
  427. def format_time(seconds):
  428.     hours, remainder = divmod(seconds, 3600)
  429.     minutes, seconds = divmod(remainder, 60)
  430.     return f"{int(hours):02d}h {int(minutes):02d}m {int(seconds):02d}s"
  431.  
  432. def print_elapsed_time(stop_event, start_time):
  433.     while not stop_event.is_set():
  434.         elapsed_time = time.time() - start_time
  435.         print(f"\rUplynulý čas: {format_time(elapsed_time)}", end="", flush=True)
  436.         time.sleep(1)
  437.  
  438. def simplify_fen(fen):
  439.     return ' '.join(fen.split()[:4])
  440.  
  441. def calculate_optimal_moves(start_fen: str) -> Dict[str, Tuple[int, str]]:
  442.     print("Funkce calculate_optimal_moves byla zavolána")
  443.     print(f"Počáteční FEN: {start_fen}")
  444.    
  445.     board = CustomBoard(start_fen)
  446.     POZ = {1: simplify_fen(start_fen)}
  447.     AR = {simplify_fen(start_fen): {'used': 0, 'to_end': None, 'depth': 0, 'type': 'normal'}}
  448.     N = 1
  449.     M = 0
  450.  
  451.     start_time = time.time()
  452.     current_depth = 0
  453.     positions_at_depth = {0: 0}
  454.     depth_start_time = start_time
  455.  
  456.     stop_event = threading.Event()
  457.     timer_thread = threading.Thread(target=print_elapsed_time, args=(stop_event, start_time))
  458.     timer_thread.start()
  459.  
  460.     try:
  461.         print("Začínám generovat pozice...")
  462.         print("Počáteční pozice:")
  463.         print_board(start_fen)
  464.        
  465.         depth_1_positions = []  # Seznam pro ukládání pozic v hloubce 1
  466.  
  467.         # Generate all positions
  468.         while M < N:
  469.             M += 1
  470.             current_fen = POZ[M]
  471.             board.set_custom_fen(current_fen)
  472.             simplified_current_fen = simplify_fen(current_fen)
  473.             current_depth = AR[simplified_current_fen]['depth']
  474.  
  475.             if current_depth not in positions_at_depth:
  476.                 positions_at_depth[current_depth] = 0
  477.                 if current_depth > 0:
  478.                     depth_time = time.time() - depth_start_time
  479.                     total_time = time.time() - start_time
  480.                     print(f"\nHloubka {current_depth - 1}: {positions_at_depth[current_depth - 1]} pozic, "
  481.                           f"Čas hloubky: {format_time(depth_time)} / Celkový čas: {format_time(total_time)}")
  482.                    
  483.                     if current_depth == 1:
  484.                         print("Všechny pozice v hloubce 1:")
  485.                         for pos in depth_1_positions:
  486.                             print_board(pos)
  487.                             print()
  488.                
  489.                 depth_start_time = time.time()
  490.  
  491.             positions_at_depth[current_depth] += 1
  492.  
  493.             if current_depth == 1:
  494.                 depth_1_positions.append(current_fen)
  495.  
  496.             if AR[simplified_current_fen]['used'] == 0:
  497.                 AR[simplified_current_fen]['used'] = 1
  498.                 legal_moves = list(board.legal_moves)
  499.                 for move in legal_moves:
  500.                     board.push(move)
  501.                     POZ2 = board.fen()
  502.                     simplified_POZ2 = simplify_fen(POZ2)
  503.                     if simplified_POZ2 not in AR:
  504.                         N += 1
  505.                         POZ[N] = simplified_POZ2
  506.                         AR[simplified_POZ2] = {'used': 0, 'to_end': None, 'depth': current_depth + 1, 'type': 'normal'}
  507.                     board.pop()
  508.    
  509.         # Print last depth
  510.         depth_time = time.time() - depth_start_time
  511.         total_time = time.time() - start_time
  512.         print(f"\nHloubka {current_depth}: {positions_at_depth[current_depth]} pozic, "
  513.               f"Čas hloubky: {format_time(depth_time)} / Celkový čas: {format_time(total_time)}")
  514.         print(f"Příklad pozice v hloubce {current_depth}:")
  515.         print_board(current_fen)
  516.  
  517.         print(f"Generování pozic dokončeno. Celkový počet pozic: {N}")
  518.  
  519.         # Initial evaluation
  520.         print("\nZačínám počáteční ohodnocení...")
  521.         F_checkmate = 0
  522.         F_stalemate = 0
  523.         F_drawing = 0
  524.         F_check = 0
  525.         F_normal = 0
  526.         for i in range(1, N + 1):
  527.             current_fen = POZ[i]
  528.             board.set_custom_fen(current_fen)
  529.             simplified_current_fen = simplify_fen(current_fen)
  530.  
  531.             if board.is_checkmate():
  532.                 AR[simplified_current_fen]['to_end'] = -1000
  533.                 AR[simplified_current_fen]['type'] = 'checkmate'
  534.                 F_checkmate += 1
  535.             elif board.is_stalemate():
  536.                 AR[simplified_current_fen]['to_end'] = 0
  537.                 AR[simplified_current_fen]['type'] = 'stalemate'
  538.                 F_stalemate += 1
  539.             elif board.is_insufficient_material():
  540.                 AR[simplified_current_fen]['to_end'] = 0
  541.                 AR[simplified_current_fen]['type'] = 'drawing'
  542.                 F_drawing += 1
  543.             elif board.is_check():
  544.                 AR[simplified_current_fen]['to_end'] = None
  545.                 AR[simplified_current_fen]['type'] = 'check'
  546.                 F_check += 1
  547.             else:
  548.                 AR[simplified_current_fen]['to_end'] = None
  549.                 AR[simplified_current_fen]['type'] = 'normal'
  550.                 F_normal += 1
  551.  
  552.         print(f"Počet pozic v matu je {F_checkmate}")
  553.         print(f"Počet pozic v patu je {F_stalemate}")
  554.         print(f"Počet pozic v remíze je {F_drawing}")
  555.         print(f"Počet pozic v šachu je {F_check}")
  556.         print(f"Počet normálních pozic je {F_normal}")
  557.  
  558.         # Iterative evaluation
  559.         print("\nZačínám iterativní ohodnocení...")
  560.         uroven = 0
  561.         while True:
  562.             uroven += 1
  563.             level_start_time = time.time()
  564.             print(f"Výpočet v úrovni {uroven}")
  565.            
  566.             changed = False
  567.             current_level_positions = 0
  568.             for i in range(1, N + 1):
  569.                 current_fen = POZ[i]
  570.                 board.set_custom_fen(current_fen)
  571.                 simplified_current_fen = simplify_fen(current_fen)
  572.                 if AR[simplified_current_fen]['to_end'] is None or AR[simplified_current_fen]['to_end'] == 0:
  573.                     hod = -2000
  574.                     for move in board.legal_moves:
  575.                         board.push(move)
  576.                         POZ2 = board.fen()
  577.                         simplified_POZ2 = simplify_fen(POZ2)
  578.                         if simplified_POZ2 in AR and AR[simplified_POZ2]['to_end'] is not None:
  579.                             hod2 = -AR[simplified_POZ2]['to_end']
  580.                             if hod2 > hod:
  581.                                 hod = hod2
  582.                         board.pop()
  583.                    
  584.                     if hod == 1001 - uroven:
  585.                         new_to_end = 1000 - uroven
  586.                         new_type = 'winning'
  587.                     elif hod == -1001 + uroven:
  588.                         new_to_end = -1000 + uroven
  589.                         new_type = 'losing'
  590.                     elif hod == 0:
  591.                         new_to_end = 0
  592.                         new_type = 'drawing'
  593.                     elif hod > -2000:  # Pokud byl nalezen alespoň jeden platný tah
  594.                         new_to_end = hod
  595.                         new_type = 'normal'
  596.                     else:
  597.                         new_to_end = None
  598.                         new_type = None
  599.                    
  600.                     if new_to_end is not None and (AR[simplified_current_fen]['to_end'] != new_to_end or AR[simplified_current_fen]['type'] != new_type):
  601.                         AR[simplified_current_fen]['to_end'] = new_to_end
  602.                         AR[simplified_current_fen]['type'] = new_type
  603.                         changed = True
  604.                         current_level_positions += 1
  605.            
  606.             level_end_time = time.time()
  607.             total_elapsed_time = level_end_time - start_time
  608.             level_elapsed_time = level_end_time - level_start_time
  609.             print(f"Nalezeno {current_level_positions} pozic v úrovni {uroven}")
  610.             print(f"Čas úrovně: {format_time(level_elapsed_time)} / Celkový čas: {format_time(total_elapsed_time)}")
  611.            
  612.             if not changed:
  613.                 print("Hodnocení ukončeno - žádné další změny.")
  614.                 break
  615.        
  616.         print(f"Celkem nalezeno {sum(1 for data in AR.values() if data['to_end'] is not None)} ohodnocených pozic")
  617.  
  618.         print("\nVýpočet dokončen.")
  619.         return {fen: (data['to_end'], data['type']) for fen, data in AR.items() if data['to_end'] is not None}
  620.  
  621.     finally:
  622.         stop_event.set()
  623.         timer_thread.join()
  624.  
  625.  
  626. # Helper function to print the board
  627. def print_board(fen):
  628.     board = CustomBoard(fen)
  629.     print(board)
  630.  
  631. # Najděte nejmenší kladnou hodnotu to_end ve všech FEN záznamech v AR
  632. def find_min_positive_value(AR):
  633.     min_positive_value = float('inf')
  634.     min_fen = None
  635.    
  636.     for fen, (value, type_pozice) in AR.items():
  637.         if value is not None and value > 0 and value < min_positive_value:
  638.             min_positive_value = value
  639.             min_fen = fen
  640.    
  641.     if min_positive_value == float('inf'):
  642.         print("Žádná kladná hodnota nebyla nalezena.")
  643.     else:
  644.         print(f"Nejmenší kladná hodnota: {min_positive_value}, FEN: {min_fen}")
  645.  
  646. # Main execution
  647. # Main execution
  648. if __name__ == "__main__":
  649.     start_fen = "7K/8/k1P5/7p/8/8/8/8 w - - 0 1"
  650.  
  651.     start_fen = "7K/8/8/8/8/k7/8/7A w - - 0 1"
  652.  
  653.  #   start_fen = "7K/8/8/2a5/8/1k6/8/7A w - - 0 1"
  654.  
  655.     start_fen = "7K/8/k1P5/7p/8/8/8/8 w - - 0 1"
  656.  
  657.     start_fen = "6K1/3E4/8/8/8/k7/8/8 w - - 0 1"
  658.  
  659.     start_fen = "8/5A2/8/8/2K5/8/ka6/8 w - - 0 1"
  660.  
  661.     start_fen = "8/8/8/2k5/8/8/1K6/3Q4 w - - 0 1"
  662.  
  663.    
  664.     AR = calculate_optimal_moves(start_fen)
  665.  
  666.     find_min_positive_value(AR)
  667.  
  668.     # print("\nVýsledky:")
  669.     # for hodnota in range(-996, -1001, -1):  # Generuje hodnoty -996, -997, -998, -999, -1000
  670.     #     for fen, (fen_hodnota, typ_pozice) in AR.items():
  671.     #         if fen_hodnota == hodnota:
  672.     #             print(f"FEN: {fen}")
  673.     #             print(f"Hodnota: {fen_hodnota}")
  674.     #             print(f"Typ pozice: {typ_pozice}")
  675.                
  676.     #             temp_board = CustomBoard(fen)
  677.                
  678.     #             if temp_board.is_checkmate():
  679.     #                 print("Stav: Mat")
  680.     #             elif temp_board.is_stalemate():
  681.     #                 print("Stav: Pat")
  682.     #             elif temp_board.is_insufficient_material():
  683.     #                 print("Stav: Nedostatečný materiál")
  684.     #             elif temp_board.is_check():
  685.     #                 print("Stav: Šach")
  686.     #             else:
  687.     #                 print("Stav: Normální pozice")
  688.      
  689.     #             print_board(fen)
  690.                
  691.     #             print()
  692.  
  693.     # Print optimal moves
  694. # Print optimal moves
  695.     current_fen = start_fen
  696.     simplified_current_fen = simplify_fen(current_fen)
  697.     simplified_current_fen1 = simplified_current_fen
  698.     optimal_moves = []
  699.    
  700.     while True:
  701.         board = CustomBoard(current_fen)
  702.         if board.is_checkmate():
  703.             print("Mat detekován!")
  704.             break
  705.        
  706.         # Opravená část
  707.         half_move_clock = current_fen.split()[-2]
  708.         if board.is_insufficient_material() or (half_move_clock != '-' and int(half_move_clock) >= 100):
  709.             if board.is_insufficient_material():
  710.                 print("Nedostatečný materiál detekován!")
  711.             else:
  712.                 print("Remíza pravidlem 50 tahů detekována!")
  713.             AR[simplified_current_fen] = (0, 'drawing')  # Aktualizujeme AR pro tuto pozici
  714.             break
  715.        
  716.         if simplified_current_fen not in AR:
  717.             print(f"Pozice {simplified_current_fen} není v AR.")
  718.             break
  719.        
  720.         current_value = AR[simplified_current_fen][0]
  721.        
  722.         if current_value == 0:
  723.             print("Remíza dosažena!")
  724.             break
  725.        
  726.         hod = -2000 if current_value > 0 else 2000
  727.         best_fen = None
  728.         for move in board.legal_moves:
  729.             board.push(move)
  730.             POZ2 = board.fen()
  731.             simplified_POZ2 = simplify_fen(POZ2)
  732.             if simplified_POZ2 in AR:
  733.                 hod2 = -AR[simplified_POZ2][0]
  734.                 if current_value > 0:  # Silnější hráč
  735.                     if hod2 > hod:
  736.                         hod = hod2
  737.                         best_fen = simplified_POZ2
  738.                 else:  # Slabší hráč
  739.                     if hod2 < hod:
  740.                         hod = hod2
  741.                         best_fen = simplified_POZ2
  742.             board.pop()
  743.        
  744.         if best_fen is None:
  745.             print("Žádný další tah nebyl nalezen.")
  746.             break
  747.         optimal_moves.append(best_fen)
  748.         current_fen = best_fen
  749.         simplified_current_fen = simplify_fen(current_fen)
  750.            
  751.    
  752.     print("\nOptimální tahy:")
  753.     for fen in reversed(optimal_moves):
  754.         print_board(fen)
  755.         hodnota, typ_pozice = AR[simplify_fen(fen)]
  756.         print(f"Hodnota: {hodnota}, Typ: {typ_pozice}")
  757.         print(fen)
  758.         print("\n")
  759.        
  760.     print_board(simplified_current_fen1)
  761.     hodnota, typ_pozice = AR[simplified_current_fen1]
  762.     print(f"Hodnota: {hodnota}, Typ: {typ_pozice}")
  763.     print(simplified_current_fen1)
  764.     print("\n")
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