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Stockfish 9+wasm
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B20 Sicilian Defense: Bowdler Attack
1e4c52Bc4b53Qf3bxc44e5e65Qg3d56Nh3Ne77Ng5Nf58Qf3Qxg59g4Nd410h4Nxc2+11Kd1Qxe512Qxf7+Kxf713g5Ke714Re1Qd415Kxc2Qd3+16Kd1c317Nxc3d418Nd5+Kd619Nf6c420Nxh7c321g6c2#
0-1
Checkmate, Black is victorious
FEN
PGN
[Event "Casual UltraBullet game"] [Site "http://chess-academy.net/WHI83yyT"] [Date "2022.12.02"] [Round "-"] [White "Clowns"] [Black "KKKKKK"] [Result "0-1"] [UTCDate "2022.12.02"] [UTCTime "19:50:07"] [WhiteElo "1809"] [BlackElo "2139"] [Variant "Standard"] [TimeControl "15+0"] [ECO "B20"] [Opening "Sicilian Defense: Bowdler Attack"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 c5 2. Bc4 { B20 Sicilian Defense: Bowdler Attack } b5 3. Qf3 bxc4 4. e5 e6 5. Qg3 d5 6. Nh3 Ne7 7. Ng5 Nf5 8. Qf3 Qxg5 9. g4 Nd4 10. h4 Nxc2+ 11. Kd1 Qxe5 12. Qxf7+ Kxf7 13. g5 Ke7 14. Re1 Qd4 15. Kxc2 Qd3+ 16. Kd1 c3 17. Nxc3 d4 18. Nd5+ Kd6 19. Nf6 c4 20. Nxh7 c3 21. g6 c2# { Black wins by checkmate. } 0-1
   1111½½½½000000000Clowns6
   0000½½½½111111111KKKKKK11
Computer analysis Move times Crosstable FEN & PGN