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Stockfish 9+wasm
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E21 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation
1d4Nf62c4e63Nc3Bb44Nf3b65Qb3c56e3Ba67a3Ba58Bd2O-O9O-O-OQe710d5exd511Nxd5Nxd512cxd5c413Qc2Bxd2+14Qxd2Rc815d6Qf616Nd4Qxd617Nf5Qe518Nh4c319bxc3Rxc3+20Kb1Rb3+21Ka2Qe622Bxa6Nxa623Rc1Rd3+24Kb2Qb3+25Ka1Rxd226Rb1Qa2#
0-1
Checkmate, Black is victorious
FEN
PGN
[Event "Casual Correspondence game"] [Site "http://chess-academy.net/5f7JstYG"] [Date "2022.10.17"] [Round "-"] [White "DavidR"] [Black "mereacrenatalia"] [Result "0-1"] [UTCDate "2022.10.17"] [UTCTime "14:42:19"] [WhiteElo "1322"] [BlackElo "1866"] [Variant "Standard"] [TimeControl "-"] [ECO "E21"] [Opening "Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 { E21 Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation } 5. Qb3 c5 6. e3 Ba6 7. a3 Ba5 8. Bd2 O-O 9. O-O-O Qe7 10. d5 exd5 11. Nxd5 Nxd5 12. cxd5 c4 13. Qc2 Bxd2+ 14. Qxd2 Rc8 15. d6 Qf6 16. Nd4 Qxd6 17. Nf5 Qe5 18. Nh4 c3 19. bxc3 Rxc3+ 20. Kb1 Rb3+ 21. Ka2 Qe6 22. Bxa6 Nxa6 23. Rc1 Rd3+ 24. Kb2 Qb3+ 25. Ka1 Rxd2 26. Rb1 Qa2# { Black wins by checkmate. } 0-1
00000000000000000000DavidR9½
11111111111111111111mereacrenatalia119½
Computer analysis Move times Crosstable FEN & PGN