So, we can disregard Ke2, can't we?
Alex
Checkmate in ...?
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Brunetti
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Vinvin
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acase
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Re: Checkmate in ...?
It looks like in addition to Eelco's 18...Bc5! that 18...d4! also works for the same amount of moves to mate:
[pgn][Event "Game fragment"]
[Site "Columbus, Ohio"]
[Date "2024.10.25"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "0-1"]
[Time "20:42:07"]
[TimeControl "300"]
[SetUp "1"]
[FEN "r2q1rk1/pp2b2p/5pp1/3p2P1/2p2PbP/2P1P3/PPBK4/RNB4R b - f3 0 18"]
[Termination "normal"]
[PlyCount "31"]
[WhiteType "program"]
[BlackType "program"]
18. ... d4 19. cxd4 Bb4+ 20. Nc3 Qd5 21.
Rg1 Qf3 22. Rxg4 Rfe8 23. Bf5 (23. Be4 Rxe4 24. Kc2 Qf1 25. Bd2 Qd3+ 26. Kc1 Rxe3
27. Bxe3 Qxe3+ 28. Kd1 Re8 29. Rg2 Bxc3 30. bxc3 Qf3+ 31. Kc2 Qxg2+ 32. Kd1
Qf1+ 33. Kc2 Re2#) 23. .. Rxe3 24. Kc2 Rxc3+ 25. bxc3 Qxc3+ 26. Kb1 gxf5
27. Rg2 Qd3+ 28. Rc2 Re8 29. a3 Bc3 30. gxf6 Re1 31. f7+ Kxf7 32. Ka2 Qxc2+
33. Bb2 Qxb2# 0-1
[/pgn]
[pgn][Event "Game fragment"]
[Site "Columbus, Ohio"]
[Date "2024.10.25"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "0-1"]
[Time "20:42:07"]
[TimeControl "300"]
[SetUp "1"]
[FEN "r2q1rk1/pp2b2p/5pp1/3p2P1/2p2PbP/2P1P3/PPBK4/RNB4R b - f3 0 18"]
[Termination "normal"]
[PlyCount "31"]
[WhiteType "program"]
[BlackType "program"]
18. ... d4 19. cxd4 Bb4+ 20. Nc3 Qd5 21.
Rg1 Qf3 22. Rxg4 Rfe8 23. Bf5 (23. Be4 Rxe4 24. Kc2 Qf1 25. Bd2 Qd3+ 26. Kc1 Rxe3
27. Bxe3 Qxe3+ 28. Kd1 Re8 29. Rg2 Bxc3 30. bxc3 Qf3+ 31. Kc2 Qxg2+ 32. Kd1
Qf1+ 33. Kc2 Re2#) 23. .. Rxe3 24. Kc2 Rxc3+ 25. bxc3 Qxc3+ 26. Kb1 gxf5
27. Rg2 Qd3+ 28. Rc2 Re8 29. a3 Bc3 30. gxf6 Re1 31. f7+ Kxf7 32. Ka2 Qxc2+
33. Bb2 Qxb2# 0-1
[/pgn]