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jsettlem/chessbutgood.py

Last active January 13, 2020 05:16
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it's like chess, but good
Raw
chessbutgood.py
import random
import urllib.parse
from pprint import pprint
from typing import List, Iterator, Optional
import chess
import chess.svg
import chess.engine
def getEmptySquares(board: chess.Board) -> Iterator[chess.Square]:
return list(filter(lambda s: board.piece_at(s) is None, chess.SQUARES))
def getRandomEmptySquare(board: chess.Board) -> chess.Square:
return random.choice(getEmptySquares(board))
def findValidSquare(board: chess.Board, piece: chess.Piece) -> Optional[chess.Square]:
valid_squares = []
for square in getEmptySquares(board):
board_copy = board.copy()
board_copy.set_piece_at(square, piece)
if board_copy.is_valid():
valid_squares.append(square)
if valid_squares:
return random.choice(valid_squares)
else:
return None
def generateBoard() -> chess.Board:
pieces = [chess.QUEEN] + [chess.BISHOP] * 2 + [chess.KNIGHT] * 2 + [chess.ROOK] * 2 + [chess.PAWN] * 8
white_pieces = list(map(lambda p: chess.Piece(p, True), pieces))
black_pieces = list(map(lambda p: chess.Piece(p, False), pieces))
all_pieces = white_pieces + black_pieces
random.shuffle(all_pieces)
board = chess.Board(None)
board.set_piece_at(getRandomEmptySquare(board), chess.Piece(chess.KING, True))
black_king = chess.Piece(chess.KING, False)
board.set_piece_at(findValidSquare(board, black_king), black_king)
for i in range(len(all_pieces)):
square = findValidSquare(board, all_pieces[i])
if square:
board.set_piece_at(square, all_pieces[i])
if i > 25 and random.random() < 0.1:
break
return board
def getLichessUrl(board: chess.Board):
return f"https://lichess.org/analysis/{urllib.parse.quote(board.fen())}"
def main():
lowest_score = 99999
lowest_board = None
engine = chess.engine.SimpleEngine.popen_uci(
"D:/Downloads/stockfish-10-win/stockfish-10-win/Windows/stockfish_10_x64.exe")
engine.configure({"Threads": 7})
for i in range(100):
random_board = generateBoard()
if not random_board.is_game_over():
score = engine.analyse(random_board, chess.engine.Limit(time=1))['score'].white()
print("score:", score, "board:", getLichessUrl(random_board))
abs_score = abs(score.score(mate_score=100000))
if abs_score < lowest_score and abs_score != 0:
lowest_score = abs_score
lowest_board = random_board
print("new lowest!")
engine.quit()
print("lowest overall:", lowest_score)
print(getLichessUrl(lowest_board))
with open('out.svg', 'w') as o:
o.write(chess.svg.board(lowest_board))
if __name__ == '__main__':
main()
Raw
sample output.txt
"V:\venvs\chess but good\Scripts\python.exe" "V:/Dropbox/PyCharm/chess but good/chessbutgood.py"
score: #-2 board: https://lichess.org/analysis/1r1kBn2/1b2RQr1/n6b/P1p1Pp2/pPPB3P/pp1PP2q/1Pp1Np1p/3NR2K%20w%20-%20-%200%201
new lowest!
score: +1228 board: https://lichess.org/analysis/4B2R/P2r2n1/1p1RpPPP/p1NnK1Q1/1Ppqppp1/pP1P3b/N4k1r/3b4%20w%20-%20-%200%201
new lowest!
score: #-3 board: https://lichess.org/analysis/1R4r1/1PP1Pp1B/1ppp4/1BP1p3/p3pkn1/1b1PNbr1/1PpP1KPR/1N2Q1nq%20w%20-%20-%200%201
score: +1484 board: https://lichess.org/analysis/3r4/p4nN1/1PBq1rp1/bp3Ppp/3bN1P1/RpQ1PpPp/1P1BPPk1/2KR4%20w%20-%20-%200%201
score: +1445 board: https://lichess.org/analysis/4r3/1ppPp1P1/4bpPn/1QPbR1PB/2BP1k1p/rN1pnpqp/KP2PNR1/8%20w%20-%20-%200%201
score: -915 board: https://lichess.org/analysis/3NB3/2qp2Pp/pBRp1bpP/P2PP1Nk/p1P1QP2/pK1n1b2/Pr3npr/4R3%20w%20-%20-%200%201
new lowest!
score: +68 board: https://lichess.org/analysis/1q1b3K/1Qr2pp1/1P2RB2/pb1RP1NP/1rP1p1n1/pn1PPpPp/BP1p4/4N1k1%20w%20-%20-%200%201
new lowest!
score: +1757 board: https://lichess.org/analysis/1K2rB1b/P2PPQ1p/pp2nPpP/1B2P2p/4P2b/R1rpN1RP/pp3Nq1/1k2n3%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/2NQB3/r2pn2P/3PPP2/2p1Pk1p/Rr1nq1Np/1p2RPp1/1pK1PP1b/4b3%20w%20-%20-%200%201
score: #+8 board: https://lichess.org/analysis/1N6/qP1n4/1pPp1Ppb/PK1BP1np/N2k3r/1p1p1PpP/4b1R1/1BQ1R3%20w%20-%20-%200%201
score: #+7 board: https://lichess.org/analysis/4N3/PpP1RBn1/kB3pN1/n1ppppP1/1K6/2R2pPr/Pb1PPQp1/4q3%20w%20-%20-%200%201
score: -836 board: https://lichess.org/analysis/2Bb3b/1p2p1PR/n2rNP2/rPp1P1p1/np2ppRB/kPP1QKp1/Pq4P1/2N5%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/1r5R/1B3PP1/Nk1pp1P1/pPq2p1b/R1nP2p1/pb2P1Pn/Qp1Pp3/1Nr2K1B%20w%20-%20-%200%201
score: -1220 board: https://lichess.org/analysis/8/2Pn3P/pPNRbPN1/PBppBPbQ/1rq1Pn2/2R2Kpp/krp2ppP/8%20w%20-%20-%200%201
score: +3032 board: https://lichess.org/analysis/2R5/1PP3rp/P1ppP3/1Rp1pK1N/4BbP1/Q1P1bnp1/1q1p1P1p/3k1B2%20w%20-%20-%200%201
score: #+2 board: https://lichess.org/analysis/1K2b1B1/PP1p4/P1PP2pn/pBqr1QN1/ppPR1b2/2RppP1N/n1r1kPp1/8%20w%20-%20-%200%201
score: +1060 board: https://lichess.org/analysis/5b1R/1P1rnQ2/2k1B1P1/P2nrp1K/1PP1p3/pNppR1qp/1PPPpN1p/3B2b1%20w%20-%20-%200%201
score: #+1 board: https://lichess.org/analysis/1r6/PP1PP1PB/Kp3Qb1/p1k1N2q/p1p2R2/1Pp1npBr/Nb1P1ppP/3R1n2%20w%20-%20-%200%201
score: #-4 board: https://lichess.org/analysis/8/1PRBPNrp/2QPn1kP/p2r4/pB2PnP1/3K1ppP/PpbNpqpb/3R4%20w%20-%20-%200%201
score: -129 board: https://lichess.org/analysis/3n4/pP2rpkp/P2p1b2/PPPRp1nP/N5p1/pNqp1b1P/1P2BrK1/2R2Q2%20w%20-%20-%200%201
score: #-8 board: https://lichess.org/analysis/4R3/Pn1pp1N1/PQPK3q/N3bp1p/1p3ppp/PPrb1P1k/3P2rP/1RBn2B1%20w%20-%20-%200%201
score: -717 board: https://lichess.org/analysis/2r3Q1/bP4P1/ppP1BP2/1RpPBpPR/2K2P2/pppN1k1q/pP2bnN1/1n5r%20w%20-%20-%200%201
score: +2094 board: https://lichess.org/analysis/2K2rB1/PBPpP1b1/bk1ppp1P/pPp2Q1p/nPr4P/6P1/1N1R1pRq/3N1n2%20w%20-%20-%200%201
score: +813 board: https://lichess.org/analysis/2Q3B1/1pqp1ppP/RKN5/1pPbP1b1/p4PPp/2npn1RP/1rNPP2k/1r5B%20w%20-%20-%200%201
score: #-5 board: https://lichess.org/analysis/2nNBR2/rp6/1P1bP3/1N1p1q1p/1PPp1rpP/p2K1n1B/PP2pp1R/3kb3%20w%20-%20-%200%201
score: +3351 board: https://lichess.org/analysis/3b3R/2PNP1bQ/2n1pp1P/1rpNqB2/1P2PPn1/1pKP1Pkp/1B3p2/2R5%20w%20-%20-%200%201
score: #+13 board: https://lichess.org/analysis/3k4/1RbPpPnP/2P1p3/1p1n2b1/ppP1Np1r/qp1N1pPB/PKR1QP1r/7B%20w%20-%20-%200%201
score: +1269 board: https://lichess.org/analysis/7B/2Ppkp1P/2pRqp1P/2P1K1pn/NrPbQ1RP/1Ppp2r1/n3P1Bp/1N5b%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/4R2B/P3n2b/PrpP1PKP/P1BbPP2/n4pqk/rpp1Q1pp/1p5R/8%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/2n3b1/pQ1p4/p1pPN2k/2p2R1b/PBPBnPpr/1P1PpP1P/1Rp1rNK1/5q2%20w%20-%20-%200%201
score: +2133 board: https://lichess.org/analysis/k7/1nP2B2/ppKp2pP/NPn1bpBP/3Rr1RP/pp1Pb1N1/2QP1P1p/5q2%20w%20-%20-%200%201
score: #+6 board: https://lichess.org/analysis/2Q5/1PR2Pkp/p1Kpp1P1/qB1bn2p/2p2P1P/p1PRB1P1/P1Np4/1r1brN2%20w%20-%20-%200%201
score: +397 board: https://lichess.org/analysis/1rbK4/Pp1p1P2/1B1PpP2/R1RN1r1q/n1PB1pQ1/Pp1P1p1n/1pp2bNP/1k6%20w%20-%20-%200%201
score: -1946 board: https://lichess.org/analysis/1Q1BK1q1/P1n1p2p/1P1pP3/p2b1RPP/3BnNbp/pN1PPkPr/3p2p1/1R2r3%20w%20-%20-%200%201
score: -3014 board: https://lichess.org/analysis/8/1P1K1r1N/2pPppb1/P2nPRP1/BPrp1pq1/P4pk1/N1p1P1np/2R1b1B1%20w%20-%20-%200%201
score: -2001 board: https://lichess.org/analysis/6r1/nP2BPpP/3pp1PP/QN1k1P2/pr2nR1p/pP2B3/p2bp1P1/2bKNRq1%20w%20-%20-%200%201
score: #-1 board: https://lichess.org/analysis/N1R1R2B/4PP1r/2PPpBb1/2bpn2p/kpnpPQpN/P3p1PK/1rP3p1/5q2%20w%20-%20-%200%201
score: +1949 board: https://lichess.org/analysis/8/1n1BNKpp/1p3P2/p1Q2ppP/1P2P1qn/1p2NPPp/2bRPP1r/kr6%20w%20-%20-%200%201
score: +2405 board: https://lichess.org/analysis/3Q4/pK2P2k/2P1pp2/P2Pp1nP/RrPP2q1/pbpNrR2/N2PBBp1/5n2%20w%20-%20-%200%201
score: #+3 board: https://lichess.org/analysis/Bbkr2b1/q1r1P2P/P3P1pK/n1pp4/1PpPNNpR/P1p1B1p1/5p1P/2QR1n2%20w%20-%20-%200%201
score: -1666 board: https://lichess.org/analysis/2q1B3/RnNR1B2/2p1pkbp/3P1r1K/Q3P1P1/ppnpbp1P/1P4P1/7N%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/1RQ1q3/1P1PPk1B/1PPr1b2/1B1Pp1Pp/pp4p1/N1r3nR/pPpKb1p1/1n4N1%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/3b2rN/2n1npk1/1PQ1Pb2/2pBp1PB/RP1PPpPP/RN1p2K1/p2rppq1/8%20w%20-%20-%200%201
score: #+8 board: https://lichess.org/analysis/4n3/B2R2P1/N1pp1pPp/Bk4KP/4pprP/PN4Qp/PP1pP1b1/1b1n1r2%20w%20-%20-%200%201
score: #+7 board: https://lichess.org/analysis/B4n2/RKP1kq1p/p1p2p1P/1N6/ppnP1p1P/3BP2P/rQ1P1NpP/6rR%20w%20-%20-%200%201
score: -826 board: https://lichess.org/analysis/3r4/2PPN3/bNPpb3/n1R1KpP1/1P1QppBP/P2p2q1/pppr2kP/5nB1%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/r4N2/2b1rPPp/RRB2p1Q/1p1B1P2/1Pp1bPPP/1pKpk3/Pn2p3/6q1%20w%20-%20-%200%201
score: -630 board: https://lichess.org/analysis/bBn3NR/pPr1pPn1/2PK3B/3PpQNP/1bk2PqR/P1p3pp/1Pp1p3/8%20w%20-%20-%200%201
score: #+9 board: https://lichess.org/analysis/2B3n1/q1P1Nk1P/P2p4/1b1r3p/bn2PrP1/pQp1Bpp1/p2p1PPP/4R1K1%20w%20-%20-%200%201
score: #+2 board: https://lichess.org/analysis/Rb5K/P2pPP2/rp2nNP1/P3ppr1/3BQp2/PkP1ppPb/1Nnq2p1/1B3R2%20w%20-%20-%200%201
score: #+8 board: https://lichess.org/analysis/1k3bqn/p1pP1r1P/p2QBr1p/2PPPP2/2bPNpKN/n5P1/p1p3Rp/4B1R1%20w%20-%20-%200%201
score: +665 board: https://lichess.org/analysis/n7/1QqPp2B/p1b1ppnP/P1p1PP2/2kBp1P1/1R1NKpP1/b3p1RP/2r2rN1%20w%20-%20-%200%201
score: #+2 board: https://lichess.org/analysis/2N2kr1/1PPQ1Pn1/3pqpRp/1Bp1P2P/4RP1p/b1b1p2r/PpN1P1K1/6nB%20w%20-%20-%200%201
score: -1768 board: https://lichess.org/analysis/3b2B1/4NPpp/RrRp1rnQ/PPKp1Pb1/n1ppqPN1/1p1PP2P/1B2k2p/8%20w%20-%20-%200%201
score: #-1 board: https://lichess.org/analysis/2n5/pPP1rPBP/4qpp1/RQ2PrBp/N1KPb3/kbPp1R1N/4pppP/3n4%20w%20-%20-%200%201
score: +896 board: https://lichess.org/analysis/3q1Bn1/K2pQ2P/PppP4/1N1PPp1r/1rPpkp1b/2ppP1Pb/4B2n/1R5N%20w%20-%20-%200%201
score: #-14 board: https://lichess.org/analysis/2n1r1n1/q2rN1PN/1P1P1pb1/3Kb1pQ/1pPp1pRP/1Bk3P1/P1p1pp1P/3R3B%20w%20-%20-%200%201
score: #+1 board: https://lichess.org/analysis/Q3R3/1B3KpB/P1P2p1b/p1pp1b1P/1P1p2PP/rP1nNP2/n1pkq1Np/2R4r%20w%20-%20-%200%201
score: +1641 board: https://lichess.org/analysis/1n3q2/4PPKP/1P3Npr/p1Q1RB2/P2p1n1p/Pprp1Pb1/k1bBP2p/4N3%20w%20-%20-%200%201
score: +1249 board: https://lichess.org/analysis/5nr1/bppp4/1npP2q1/PPPB1PPb/Rp1Npk1P/2Q2r1p/K1P1p3/1R5N%20w%20-%20-%200%201
score: +1477 board: https://lichess.org/analysis/n2QR3/R2p2pP/KP1B1p2/1pppP3/P3pbr1/P2NrkPP/PN1n3p/2B2b1q%20w%20-%20-%200%201
score: +75 board: https://lichess.org/analysis/6N1/B1nQbpP1/RPPp1K2/2BpprPP/1n1N1pP1/1Pk1p3/pRP3p1/2b1rq2%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/3Q4/1P2NP2/2p1pPRp/Pp3pnP/k4Bp1/PNr1Kb1b/2pp1PBq/2n1r3%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/6r1/PP1n3N/nP1kBPpp/q2P3P/5bpp/b2pRP1B/pp1NP1pQ/2Kr2R1%20w%20-%20-%200%201
score: +1134 board: https://lichess.org/analysis/2n5/kpNnbPBK/2QPP1pP/3prPp1/Nq3B2/1rPp1b1P/1pPpR2p/4R3%20w%20-%20-%200%201
score: +1646 board: https://lichess.org/analysis/2b1KQ2/3PpB1R/PPpp1Nn1/1PbqpP2/1P1P1p2/k1p2rp1/2RnBPpN/7r%20w%20-%20-%200%201
score: #+1 board: https://lichess.org/analysis/4r2B/1K2p2k/p2pPP2/N2rP3/pPR4p/ppPn2Qb/p1RPP1NP/4nbBq%20w%20-%20-%200%201
score: -334 board: https://lichess.org/analysis/b7/nPrR2pP/NPbR2rK/1p1pNPnB/1p1pP2P/1p4p1/4PPkp/1B3q2%20w%20-%20-%200%201
score: +3073 board: https://lichess.org/analysis/B1n1Q2R/4b2P/1p2p1nP/Ppp1b3/p2PNPk1/2PpBr1p/1PNpRKP1/4r3%20w%20-%20-%200%201
score: 0 board: https://lichess.org/analysis/B5Q1/P1PR1ppn/1b1pK1Pk/BqrPp3/1p1b1p1P/pn2P3/p3r1N1/1R4N1%20w%20-%20-%200%201
score: +4379 board: https://lichess.org/analysis/3k4/PB3q1p/pR2p1p1/r2rNPpp/1PPR1p2/KBPP1P1n/1Q1pb2b/7N%20w%20-%20-%200%201
score: #-3 board: https://lichess.org/analysis/5k2/R2ppNpp/pN3Prn/3PP2P/PPbqRp1P/b2r1K2/3P2p1/2Q1n1B1%20w%20-%20-%200%201
score: +2594 board: https://lichess.org/analysis/5rn1/P2pPbR1/KRp4n/pPPbPpP1/p1B2kqP/3p2N1/pNB1pP2/3r1Q2%20w%20-%20-%200%201
score: +1570 board: https://lichess.org/analysis/1q6/pKB5/p2pN1QR/2nPPPp1/Nb2p1bp/Pp4r1/kp1PPPrP/1n1R3B%20w%20-%20-%200%201
score: +600 board: https://lichess.org/analysis/1n2KN2/2rpPP2/P3pRpp/N2Q4/bp3P1q/p2pP1Pp/1nPB1k1P/1r3B1R%20w%20-%20-%200%201
score: -306 board: https://lichess.org/analysis/3B4/P1P1RKn1/2PNrpPQ/3b1pb1/rpP1n1pp/R1Pp2p1/P1pP1q2/2NkB3%20w%20-%20-%200%201
score: -2638 board: https://lichess.org/analysis/2qr4/p1PpPBpn/bP1PnNp1/N1p2p1R/2Kb1PpP/1Q4Pr/3kPpB1/6R1%20w%20-%20-%200%201
score: -927 board: https://lichess.org/analysis/Qr2K3/PP1pp1nB/1qp2b2/P1RP2pp/2bP4/n1prP2P/1P1RpNpN/5Bk1%20w%20-%20-%200%201
score: -1258 board: https://lichess.org/analysis/BR3B2/1prp1bpn/p1PPp1nP/rP1P2Pq/2bN2k1/2PpP3/1RNp2p1/1K2Q3%20w%20-%20-%200%201
score: -835 board: https://lichess.org/analysis/b2bBRN1/P1pn2p1/Kp1P1N1P/B1rP1PP1/1p1p3p/2pRr3/QpP3nP/2k3q1%20w%20-%20-%200%201
score: +637 board: https://lichess.org/analysis/1n6/nNBppb2/r1PPKp2/1p3P2/1Q1PPb2/2PqpNB1/R1RP1pp1/5k2%20w%20-%20-%200%201
score: +550 board: https://lichess.org/analysis/3n2K1/p1pp1bN1/1k1B1pPp/pP1R2PP/1B1n2b1/1rPqPr2/3P1QP1/3N4%20w%20-%20-%200%201
score: +791 board: https://lichess.org/analysis/n5k1/p1PPn1r1/PpR3N1/pp1p1pB1/rpPP2bP/1bK2B2/PNQ2RP1/6q1%20w%20-%20-%200%201
score: #-5 board: https://lichess.org/analysis/1r1R4/1BPpP1Pn/prp1P1P1/Nn2bBpp/2pQ2P1/K1Pp1q1R/2p1Pb2/kN6%20w%20-%20-%200%201
score: +84 board: https://lichess.org/analysis/3Q4/1bp1PN1K/2pNR2n/1B1nbP1r/R1B1rPP1/ppqP2pp/1p1P1PPp/4k3%20w%20-%20-%200%201
score: +1342 board: https://lichess.org/analysis/4rRQ1/1bN1p1q1/1npP1ppP/1PB1r3/npp1PP1N/2kP1P2/PRbpB2p/7K%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/5bR1/Pp1bPPPp/2RnNP2/r7/2p2Nk1/QBp2pP1/1PpPrKpB/3qn3%20w%20-%20-%200%201
score: #+6 board: https://lichess.org/analysis/5N2/PpPP4/Bp1pq1bP/2Ppr3/kpnrp3/p2p1b1R/KPP1P1Qn/1NB5%20w%20-%20-%200%201
score: +1378 board: https://lichess.org/analysis/1K4n1/RPpp1Nkp/Bp4Pr/PPP1b3/P1pqp1P1/1P1r2p1/1pRBn2Q/6b1%20w%20-%20-%200%201
score: #-2 board: https://lichess.org/analysis/4n1Q1/bPrPknR1/3NB3/P1PpB3/pNP1pPp1/p1PpK3/P1p1q1p1/3rb2R%20w%20-%20-%200%201
score: +1 board: https://lichess.org/analysis/2nR4/qp2rpP1/2p2pP1/pPP4K/b1NpPPQ1/2k1PNpP/2B1rnp1/5B1b%20w%20-%20-%200%201
new lowest!
score: +3524 board: https://lichess.org/analysis/B7/1PR1bpP1/p1Pq1R1n/2Pb1pPp/pNp1P1k1/1pn2rPr/1Bp1P3/3NQ1K1%20w%20-%20-%200%201
score: -1765 board: https://lichess.org/analysis/5q2/k4pnp/P3pPN1/1r1R1PbP/1KNpPnpQ/BPpPPR2/1p1p3r/2B1b3%20w%20-%20-%200%201
score: +1125 board: https://lichess.org/analysis/nBN1K3/1pQ1Pnqp/r1p3bP/Pk4p1/5NP1/pP1pPP1P/Rp1rp1R1/4B2b%20w%20-%20-%200%201
score: #+8 board: https://lichess.org/analysis/6b1/1pRN3P/1QP1p3/1rRp2PP/1P4Np/3BK2p/kBpPPpr1/1b5n%20w%20-%20-%200%201
lowest overall: 1
https://lichess.org/analysis/2nR4/qp2rpP1/2p2pP1/pPP4K/b1NpPPQ1/2k1PNpP/2B1rnp1/5B1b%20w%20-%20-%200%201
Process finished with exit code 0
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