Mate in 13 : Firouzja-Wojtaszek, 2026

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MMarco
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Full name: Marc-O Moisan-Plante

Mate in 13 : Firouzja-Wojtaszek, 2026

Post by MMarco »

Interestingly, on move 32 White could have won with a mate in 13 moves starting with 32.Qh1+, while 32.Qg2+ and 32.Qf3+ only mate in 14 (according to multipv Crystal 9). Do other top engines concur?

[d]5r2/pp2bp2/1qp3p1/3kBpP1/P2P1P2/1P2P2Q/4K3/3R4 w - - 0 32

In the game, Firouzja missed all of those, played 32.e4+ and went on losing the game. :shock:

[pgn][Event "Grand Chess Tour: Super Rapid & Blitz Poland 2026"]
[Site "Chess.com"]
[Date "2026.05.07"]
[Round "22"]
[White "Firouzja, Alireza"]
[Black "Wojtaszek, Radoslaw"]
[Result "0-1"]
[WhiteElo "2796"]
[BlackElo "2558"]
[TimeControl "300+2"]
[Link "https://www.chess.com/events/2026-gct-s ... k_Radoslaw"]

1. Nf3 d5 2. b3 Bg4 3. e3 Nd7 4. Bb2 c6 5. h3 Bxf3 6. Qxf3 e6 7. g4 h6 8. h4
Ngf6 9. d3 Qa5+ 10. Ke2 O-O-O 11. g5 hxg5 12. hxg5 Rxh1 13. Qxh1 Ne8 14. a3 g6
15. Qh7 Nd6 16. Nd2 Be7 17. Nf3 Qc7 18. Bh3 Re8 19. Ne5 Nxe5 20. Bxe5 Rf8 21. f4
Qd8 22. Rh1 Nf5 23. Bxf5 exf5 24. a4 Qe8 25. Bg7 Rg8 26. Be5 Rf8 27. d4 Kd7 28.
c4 Ke6 29. cxd5+ Kxd5 30. Rd1 Qd8 31. Qh3 Qb6 32. e4+ Ke6 33. d5+ cxd5 34. exf5+
gxf5 35. Qh6+ f6 36. gxf6 Rxf6 37. Bxf6 Bxf6 38. Qh3 Qb4 39. Qe3+ Kd6 40. Kf3
Qe4+ 41. Qxe4 fxe4+ 42. Kg4 Ke6 43. Re1 Bc3 44. Re2 a5 45. Rh2 d4 46. Rh6+ Kd5
47. Rh5+ Kd6 48. Re5 d3 49. Re8 Bf6 50. Rf8 Be7 51. Rh8 e3 52. Kf3 e2 53. Kf2
0-1[/pgn]
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Ajedrecista
Posts: 2252
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Mate in 13: Firouzja-Wojtaszek, 2026.

Post by Ajedrecista »

Hello:

Huntsman quickly agrees about 32.- Qh1+ being a checkmate in 13 moves:

Code: Select all

FEN: 5r2/pp2bp2/1qp3p1/3kBpP1/P2P1P2/1P2P2Q/4K3/3R4 w - - 0 32

Huntsman:
Found 145 tablebases
classical evaluation enabled
[...]
 21/25	00:00	   1.108.417	2.524.867	+68,75	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Ke8f7 Qh1h7+ Kf7e6 g5xf6 Ke6xf6 Bb8e5+ Kf6e6 Qh7xg6+ Be7f6 Rd1d6+ Ke6e7 Qg6xf5 Rf8f7 Qf5c8
 22/26	00:00	   1.128.955	2.519.988	+70,87	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Ke8f7 Qh1h7+ Kf7e6 g5xf6 Rf8f7 f6xe7 Ke6xe7 Qh7xg6 Rf7f6 Qg6g8 Rf6f8 Qg8d5 Rf8xb8 Qd5d7+ Ke7f8
 23/32	00:00	   1.264.137	2.569.384	+M18	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Ke8f7 Qh1h7+ Kf7e6 g5xf6 Rf8f7 f6xe7 Ke6xe7 Qh7xg6 Rf7f6 Qg6g8 Rf6f8 Bb8d6+ Ke7d8 Qg8xf8+ Kd8d7 Qf8f7+ Kd7d8
 24/30	00:00	   1.538.751	2.594.858	+M15	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8R+ Qb6xb8 Be5xb8 Ke8f7 Qh1h7+ Kf7e6 g5xf6 Ke6xf6 Rd1c1 Rf8f7 Bb8e5+ Kf6e6 Qh7xg6+ Be7f6 Rc1c6+ Ke6d7 Qg6xf7+ Kd7xc6 Qf7c7+ Kc6d5 Qc7c4+
 25/30	00:00	   1.558.413	2.597.355	+M15	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8f7 Rd1c1 Be7d8 Rc1c8 Rf7d7 Qh1h8+ Ke8f7 Qh8h7+ Kf7e8 Qh7g8+ Ke8e7 g5xf6+ Ke7xf6 Rc8c6+ Rd7d6 Qg8f8+ Kf6e6 Rc6xd6+
 26/30	00:00	   1.794.373	2.654.397	+M15	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Rd1c1 Be7d8 Qh1d5 Rf8f6 Rc1c8 Rf6d6 Qd5g8+ Ke8e7 Bb8xd6+ Ke7xd6 Qg8xd8+ Kd6e6 Rc8c6+ Ke6f7 Qd8d7+ Kf7f8 Rc6c8+
 27/30	00:00	   1.847.630	2.662.291	+M15	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Rd1c1 Be7d8 Qh1d5 Rf8f6 Rc1c8 Rf6d6 Qd5g8+ Ke8e7 Bb8xd6+ Ke7xd6 Qg8xd8+ Kd6e6 Rc8c6+ Ke6f7 Qd8d7+ Kf7f8 Rc6c8+
 28/30	00:00	   2.020.056	2.700.609	+M14	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Rd1c1 Be7d8 Qh1c6+ Ke8f7 Qc6d5+ Kf7e7 Bb8d6+ Ke7f6 Bd6xf8 g5xf4 Qd5xd8+ Kf6e6 Qd8e8+ Ke6d5 Rc1c5+
 29/28	00:00	   2.325.551	2.745.632	+M14	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Rd1c1 Be7d8 Qh1c6+ Ke8f7 Qc6d5+ Kf7e7 Bb8d6+ Ke7f6 Bd6xf8 g5xf4 Qd5xd8+ Kf6e6 Qd8e8+ Ke6d5 Rc1c5+
[...]
 43/28	00:05	  17.122.058	2.943.957	+M14	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Rd1c1 Be7d8 Qh1c6+ Ke8f7 Qc6d5+ Kf7e7 Bb8d6+ Ke7f6 Bd6xf8 g5xf4 Qd5xd8+ Kf6e6 Qd8e8+ Ke6d5 Rc1c5+
 44/26	00:06	  17.850.913	2.934.557	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Bb8e5 g5xf4 Qh1c6+ Ke8f7 Rd1d7 f4f3+ Ke2xf3 Kf7e8 Rd7xa7+ Ke8f7 Qc6f6+ Kf7e8 Qf6xe7+
 45/26	00:06	  19.311.169	2.940.190	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Bb8e5 g5xf4 Qh1c6+ Ke8f7 Rd1d7 f4f3+ Ke2xf3 Kf7e8 Rd7xa7+ Ke8f7 Qc6f6+ Kf7e8 Qf6xe7+
[...]
 63/26	00:52	 146.971.907	2.810.277	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 f6xg5 Bb8e5 g5xf4 Qh1c6+ Ke8f7 Rd1d7 f4f3+ Ke2xf3 Kf7e8 Rd7xa7+ Ke8f7 Qc6f6+ Kf7e8 Qf6xe7+
------------

SF 18 with Multi-PV = 3 agrees with Crystal 9:

Code: Select all

FEN: 5r2/pp2bp2/1qp3p1/3kBpP1/P2P1P2/1P2P2Q/4K3/3R4 w - - 0 32

Stockfish-18-windows-x86-64-sse41-popcnt:
[...]
---------------------------------------------------------------------------
 48/34	00:49	  49.099.161	1.002.985	+M17	Qh3f3+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8h8 Qf3c6+ Ke8f7 Qc6c4+ Kf7f8 Qc4c8+ Kf8g7 g5xf6+ Be7xf6 Qc8c7+ Kg7g8 Rd1d7 Rh8h2+ Ke2d3 Rh2c2 Kd3xc2 Bf6g7 Rd7xg7+ Kg8h8 Qc7f7 a7a6 Rg7g8+
 48/28	00:49	  49.099.161	1.002.985	+M14	Qh3g2+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8R+ Qb6xb8 Be5xb8 Ke8f7 Qg2d5+ Kf7g7 Qd5b7 Rf8e8 Rd1d7 f6xg5 Rd7xe7+ Re8xe7 Qb7xe7+ Kg7h6 Bb8e5 a7a5 Qe7f6 g5xf4 Qf6h4+
 48/26	00:49	  49.099.161	1.002.985	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8f7 Bb8e5 Rf7f8 Qh1c6+ Ke8f7 Rd1d7 Kf7g8 Rd7xe7 Rf8f7 Qc6e8+ Rf7f8 Qe8xg6+ Kg8h8 Qg6g7+
---------------------------------------------------------------------------
 49/34	00:55	  54.871.589	997.792	+M14	Qh3f3+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8h8 Qf3c6+ Ke8f7 Rd1d7 f6xg5 Qc6c4+ Kf7g7 Qc4c3+ Kg7g8 Rd7xe7 Rh8h2+ Ke2d3 Rh2d2+ Kd3xd2 g5xf4 Qc3g7+
 49/28	00:55	  54.871.589	997.792	+M14	Qh3g2+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8R+ Qb6xb8 Be5xb8 Ke8f7 Qg2d5+ Kf7g7 Qd5b7 Rf8e8 Rd1d7 f6xg5 Rd7xe7+ Re8xe7 Qb7xe7+ Kg7h6 Bb8e5 a7a5 Qe7f6 g5xf4 Qf6h4+
 49/26	00:55	  54.871.589	997.792	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8f7 Bb8e5 Rf7f8 Qh1c6+ Ke8f7 Rd1d7 Kf7g8 Rd7xe7 Rf8f7 Qc6e8+ Rf7f8 Qe8xg6+ Kg8h8 Qg6g7+
---------------------------------------------------------------------------
 50/28	01:02	  61.357.641	993.324	+M14	Qh3f3+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8h8 Qf3c6+ Ke8f7 Rd1d7 f6xg5 Qc6c4+ Kf7g7 Qc4c3+ Kg7g8 Rd7xe7 Rh8h2+ Ke2d3 Rh2d2+ Kd3xd2 g5xf4 Qc3g7+
 50/28	01:02	  61.357.641	993.340	+M14	Qh3g2+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8R+ Qb6xb8 Be5xb8 Ke8f7 Qg2d5+ Kf7g7 Qd5b7 Rf8e8 Rd1d7 f6xg5 Rd7xe7+ Re8xe7 Qb7xe7+ Kg7h6 Bb8e5 a7a5 Qe7f6 g5xf4 Qf6h4+
 50/26	01:02	  61.357.641	993.340	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8f7 Bb8e5 Rf7f8 Qh1c6+ Ke8f7 Rd1d7 Kf7g8 Rd7xe7 Rf8f7 Qc6e8+ Rf7f8 Qe8xg6+ Kg8h8 Qg6g7+
---------------------------------------------------------------------------
[...]
---------------------------------------------------------------------------
 58/28	03:11	 186.868.402	977.273	+M14	Qh3f3+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8h8 Qf3c6+ Ke8f7 Rd1d7 f6xg5 Qc6c4+ Kf7g7 Qc4c3+ Kg7g8 Rd7xe7 Rh8h2+ Ke2d3 Rh2d2+ Kd3xd2 g5xf4 Qc3g7+
 58/28	03:11	 186.868.402	977.273	+M14	Qh3g2+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8R+ Qb6xb8 Be5xb8 Ke8f7 Qg2d5+ Kf7g7 Qd5b7 Rf8e8 Rd1d7 f6xg5 Rd7xe7+ Re8xe7 Qb7xe7+ Kg7h6 Bb8e5 a7a5 Qe7f6 g5xf4 Qf6h4+
 58/26	03:11	 186.868.402	977.273	+M13	Qh3h1+ Kd5e6 d4d5+ Ke6d7 d5xc6+ Kd7e8 c6xb7 f7f6 b7b8Q+ Qb6xb8 Be5xb8 Rf8f7 Bb8e5 Rf7f8 Qh1c6+ Ke8f7 Rd1d7 Kf7g8 Rd7xe7 Rf8f7 Qc6e8+ Rf7f8 Qe8xg6+ Kg8h8 Qg6g7+
Regards from Spain.

Ajedrecista.
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towforce
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Full name: Graham Laight

Re: Mate in 13 : Firouzja-Wojtaszek, 2026

Post by towforce »

Missing an M13 in blitz is forgivable. :)
Human chess is partly about tactics and strategy, but mostly about memory
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