[Event "?"] [Site "?"] [Date "2025.04.11"] [Round "?"] [White "Calculation Competition Solution"] [Black "?"] [Result "*"] [Annotator "Admin"] [ECO "B07"] [SetUp "1"] [FEN "r4rk1/pp3p2/3q3p/2ppbPBP/8/1PP4b/P1B5/RNQ2RK1 w - - 0 22"] [PlyCount "24"] [GameId "2180005967741210"] [EventDate "2025.04.11"] [SourceVersionDate "2025.05.21"] {[#]} 22. Bxh6 Kh8 $3 23. Bxf8 (23. f6 Bxf6 24. Qf4 Be5 $19 {And Black has a winning attack now that he can also use the g-file. For example:} 25. Bxf8 Rxf8 26. Qf3 Rg8+ 27. Kh1 Bxf1 28. Qxf1 Qh6 29. Bd1 Qe3 {and there is no stopping the queen entering to checkmate.}) 23... Bd4+ $3 24. Kh1 (24. cxd4 $4 Qg3+ 25. Kh1 Qg2#) 24... Qg3 25. Qh6+ (25. Rf2 Bxf2 26. Qh6+ Kg8 27. Qg7+ Qxg7 28. Bxg7 Kxg7 $19 {White may have survived the attack and have material equality but he is still totally lost. All of White's pieces are inactive in the corner while Black's rook and bishop pair will totally dominate.} 29. Kh2 Bg4 30. Nd2 Rh8 31. Kg2 Be3 32. Nf1 Bf4 33. Re1 Kf6 {and the pawns will drop off.}) (25. Qd2 Bxf1 26. cxd4 Rxf8 {and the rook can use the g-file decisively unless White plays Qh6 anyway} 27. Qh6+ (27. Nc3 Qf3+ 28. Kh2 Qh3+ 29. Kg1 Rg8+ 30. Kf2 Rg2+ 31. Ke1 Qh4+ 32. Kd1 Rxd2+ 33. Kxd2 Qxd4+ 34. Ke1 Qxc3+ 35. Kxf1 Qxa1+ $19) 27... Kg8 28. Qd2 Re8 $19 {we've transposed into the game but with White already having lost the bishop.}) 25... Kg8 26. Qd2 (26. Rf2 Qxf2 (26... Re8 $1 {is the fancier way to win}) 27. Qg5+ Kxf8 28. cxd4 Qf3+ 29. Kg1 Qf1+ 30. Kh2 Re8 $19) 26... Bxf1 $1 27. cxd4 Re8 $1 28. Nc3 (28. Bd6 $5 {A good try but it doesn't work} Bg2+ 29. Kg1 Re1+ 30. Qxe1 Qxe1+ 31. Kxg2 {White's pieces are still much too awkward} Qc1 $1 32. Bf4 {Otherwise Black will just play Qb2xa1} Qxf4 (32... Qxc2+ $4 33. Nd2 $11) (32... Qb2 $19 {Also wins}) 33. Na3 Qd2+ 34. Kh1 cxd4 $19) 28... Re2 $3 29. Qxe2 (29. Nxe2 $4 Qg2#) 29... Bxe2 30. Nxe2 (30. Rg1 $4 Bf3+ 31. Rg2 Qxg2#) 30... Qf3+ 31. Kg1 Qxe2 32. Bxc5 b6 33. Bd6 Qxc2 $19 {Technically material is equal but White's rook and bshop don't co-ordinate together at all and combined with the open king and isolated pawns the Queen can zip around winning pawns and eventually start pushing them. White resigned a few moves later.} *