| Nov-16-22 | | Brenin: Black is vulnerable along the e-file and on f7, and cannot defend both. Therefore 19 Bxe5 Nxe5 20 Rxe5+ Qxe5 21 Qf7+ Kd8 22 Qc7+ Ke8 23 d7+ Ke7 24 d8=Q mate. Alternatives for Black are ruinously expensive. |
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| Nov-16-22 | | Lambda: Went for 19.Bg5 Qxg5 20.Qf7+ Kd8 21.Be6 and black is toast. |
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| Nov-16-22 | | Honey Blend: Starting with a check 19. ♖xe5+ to me feels more forcing, but looks like either this or ♗xe5 will end the same way. |
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| Nov-16-22 | | jrredfield: I saw most of the variation that was played until the end, although I was unsure of 19 Bxe5 vs. 19 Rxe5+. However, Bxe5 was my first hunch so I guess I get some credit.
I then checked with the engine and either 19 Bxe5 or 19 Rxe5+ wins, the former is a mate in 11 and the latter a mate in 12. 19 Bg5 or Qxb7 also win handily. This is another of those games where White was so well positioned that Black's fate was sealed. |
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| Nov-16-22 | | Cheapo by the Dozen: If Black declines any sacrifice at e5, White will be a pawn up with a blistering attack. But if he accepts them both, we get the game line. That's as far as I took things in solving the puzzle. |
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| Nov-16-22 | | Whitehat1963: Not exactly model play by black. |
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| Nov-16-22 | | King.Arthur.Brazil: Although I saw the general combination, I failed in the order: 19. ♖xe5+ ♘xe5 20. ♗xe5 because Black can reply 20...♕f8. Now, 21. ♕xb7 Td8 22. ♗xg7 with the threat of 23. ♖e1+ seems good; or 21...♗xe5 22. ♕xa8+ ♔d7 23. ♕b7+ ♔d8 24. ♕c7+ ♔e8 25. ♕c8#. I didn't study too much this line, but the game line seems to me now, more precise. |
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| Nov-16-22 | | BxChess: I went with 19. Bg5. If 19...Qxg5, 20. Qf7+ Kd8 21. Be6 is a forced mate. |
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| Nov-16-22 | | saturn2: 19.Rxe5 Nxe5 20.Re1 wins enough material for a win. After everything is exchanged on e5 white has Q+B and an advanced pawn for R+R. Further the black king is out in the air or rather in a storm. |
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| Nov-16-22 | | Mayankk: My line was 19 Rxe5+
A) 19... Nxe5 20 Bxe5
A.1) 20... Qxe5 21 Qf7+ Kd8 22 Qc7+ Ke8 23 d7+
A.1.1) 23... Kc7 24 d8=Q++
A.1.2) 23... Kc8 24 d8=Q+ Rxd8 25 Qf7#
A.2) 20... Qf8 21 Qxb7 threatening Qxa8 or Bxg7
A.3) 20 ... Qg5/Qh4 21 Qf7+ Kd8 22 Qc7+ Ke8 23 d7+ is winning as before B) 19... Kf8 20 Re7 seems winning with threats on the f7 square. |
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| Nov-16-22 | | mel gibson: I saw 2 possible moves:
19. Bxe5 and 19. Qxb7
Stockfish 15 says:
19. Bxe5
(19. Bxe5 (♗f4xe5 ♕f6xe5 ♖e1xe5+ ♗g7xe5 ♕d5-f7+ ♔e8-d8 ♗c4-e6 ♔d8-c8 ♕f7xd7+ ♔c8-b8
♕d7-c7+ ♔b8-a7 ♖f1-b1 ♖a8-b8 ♗e6-d5 ♗e5-d4+ c3xd4 c5xd4 ♖b1xb7+ ♖b8xb7
♕c7xb7+) +M11/74 49)
White wins _ mate in 11.
When I force Stockfish to play
the other move I saw:
19. Qxb7
(19. Qxb7 Qxd6 (♕f6xd6 ♕b7xa8+ ♔e8-e7 ♗f4-g5+ ♗g7-f6 ♕a8xh8 ♗f6xg5 ♖e1-d1 ♗g5-e3+
♔g1-h1 ♗e3-d4 c3xd4 c5xd4 ♖d1-b1 ♕d6-c6 ♕h8xh7+ ♔e7-d6 ♕h7xg6+ ♔d6-c5
♕g6xc6+ ♔c5xc6 ♖f1xf5 ♔c6-d6 h2-h4 e5-e4 ♖f5-d5+ ♔d6-c6 ♖d5xd4 e4-e3 ♗c4xa6
♘d7-e5 h4-h5 ♘e5-f7 ♗a6-b5+ ♔c6-c5 c2-c3 ♘f7-g5 h5-h6 ♘g5-h7 ♗b5-d3 ♘h7-f8
♖b1-b5+ ♔c5-c6 ♖b5-e5 ♔c6-b6 ♖e5xe3 ♔b6-c7 ♖e3-e7+ ♔c7-b6) -56.83/42 1290) score for Black -56.83 depth 42.
So either move leads to a checkmate. |
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| Nov-16-22 | | agb2002: White has the bishop pair for a bishop, a knight and a pawn. The black queen protects f7 and the knight is a good defender. These details suggest 19.Bxe5 Nxe5 (19... Qf8 20.Bxg7+ wins) 20.Rxe5+: A) 20... Qxe5 21.Qf7+ Kd8 22.Qc7+ Ke8 23.d7+ Kf8 (23... Ke7 24.d8=Q#) 24.d8=Q+ and 25.Qf7#. B) 20... Kf8 21.Re7 and Black doesn't have a good defense against 22.Rf7+. C) 20... Kd7 21.Qxb7+ Kxd6 (21... Kd8 22.Qc7#) 22.Rd5+ Ke6 23.Qd7#. D) 20... Kd8 21.Qxb7 Rc8 (21... Qxe5 22.Qc7+ as in A) 22.Re7 Qxd6 (due to Qd7#) 23.Rxg7 wins decisive material. |
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| Nov-16-22 | | cocker: 19 Bg5 also wins quickly, as others have said. |
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Nov-16-22
 | | scormus: I went with my first thought: 19 Bg5 which I felt easiest to work through in OTB mode. Checking with SF I saw the M11/M12 after taking on e5 with B/R.
But also that the bizarre 19 Re4 gives ca. +13 for W.
Why did I test Re4? Accidentally let go of the >V< button too soon when moving Rxe5!
What other strange moves "give" a big advantage to W? (OK, maintain W's already big advantage).
Even 19 a3 keeps ca. +12.
Are there any losing moves?
Sadly, 19 Qc6, Qg8, Qf7, Qe6 and Qxe5 all lose |
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| Nov-16-22 | | TheaN: I played this slightly different than what I've seen so far. I did want to go with the weaker piece first as per the general rules in combining: <19.Bxe5>. This pretty much forces <19....Nxe5>, Black can't decline, and 19....Qxe5 20.Rxe5 is hopeless as after either piece takes on e5, 21.Qe6+ leads to mate. <20.Qxb7!?>.
click for larger view
Thought it was a logical move, but I seem to be quite alone in my choice. In hindsight, Rxe5+ was kind of easy. White threatens Ra8 that doesn't really have good squares, 20....Rd8? 21.Rxe5+, now of course, and 21....Qxe5 22.Qf7# but else Black loses his entire army. So Black really has just <20....Qxd6> left, and my initial thought here was <21.Qxa8+?! +->, it's consistent but gives Black somewhat of a game after 21....Ke7 22.Qa7+ Qd7! +8, though if White's consistent here on the a7-g1 diagonal he can simplify to an easily won endgame. Objectively better is 21.Qxg7! and only 21....O-O-O saves Black from immediate mate, but 22.Rxe5 #11 and there's no way Black can reinforce the queen side in time, and he's a piece down. I'll count it as a solve. |
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| Nov-16-22 | | TheaN: Interesting variation in the Alekhine. I never play e4 so it doesn't help me, but good to understand the motifs. White kind of risk-less plays into a tactical position. Where did Black go wrong? 5....dxe5 allowing 6.fxe5 seems like a small mistake, opening the f-file and not really accomplishing much for Black given the characteristics. At move 5, Black can equalize (or at least obtain decent play) with 5....g6! ⩲ to = eventually transposing to the Dragon. The nail comes as early as 8....Bg4? which is a grotesque blunder in hindsight, as Black doesn't have time for this. After 9.d5!, 9....Nxe5 is obviously out on account of 10.Nxe5 +- (common motif in the Caro-Kann), and the game line 9....Bxf3 10.Qxf3 Nxe5 11.Bb5+ Nd7 12.O-O f6 13.Bf4 +- is absolutely forced, with White cruising the position. White did not relent after move 9 whatsoever (as good as 100% accuracy), which is impressive. |
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| Nov-16-22 | | sfm: sfm: <TheaN The nail comes as early as 8....Bg4? ...> Yes. It is a perfect build-up for a suicide - take any of the pieces on c6, c5 and g4 and move them back to where they came from, and the total disaster is gone.
If 8.-,Be6 Black is fine.
The Bg4-pin is riddled with nasty tricks, as we all know. A Model Not To Be Followed. (Pun intended.) |
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Nov-16-22
 | | chrisowen: I was brunt hoofed its Bxe5 ace me choose I go boa ta Bxe5 cuff; |
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Nov-16-22
| | chrisowen: No lores |
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| Nov-16-22 | | Tiggler: 19.Bg5 wins, and there is no way to decline the B sac. |
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| Nov-16-22 | | Damenlaeuferbauer: After long thinking, a young, but already very strong later USSR champion and world championship contender Mark Taimanov finally found the very nice rook sacrifice 19.Bxe5!,Nxe5 20.Rxe5+!,Qxe5 21.Qf7+,Kd8 22.d7+,Kf8 23.d8Q+,Rxd8 24.Qf7#. He loved chess, the music and beautiful women. I was lucky to see him after the year 2000, when he played in team events in Germany and taught almost everybody endgames. Unfortunately I was much to weak to play against this then living legend of chess. |
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Nov-16-22
 | | FSR: 19.Bxe5 Nxe5 20.Rxe5+ Qxe5 21.Qf7+ Kd8 22.Qc7+ Ke8 23.d7+ Kf8 24.d8=Q+ Rxd8 25.Qf7#. |
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Nov-16-22
 | | eternaloptimist: I chose 19...♗g5 like some of u guys did. It gets the job done just like 19...♗xe5 does |
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Kibitzing
sac: 20.Rxe5+