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Ivan Andreevich Zybin vs Eugene Aleksandrovich Znosko-Borovsky
Private Chess Circle Tt (1902), St. Petersburg RUE, Mar-25
Spanish Game: Morphy Defense. Steinitz Deferred (C79)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Sep-08-14  Karpova: This game was played in a tournament organized by a private chess cirlce. <J A Sybin> received a brilliancy prize for this game.

The annotator notes on 11...0-0, that the ♔ was much safer on e8 and suggests <...Rg8> and some time <...g5> to start a counter attack.

Not annotated was 12...Be7, which allows White to destroy Black's kingside ♙-structure. Instead 12...g5 13.Nxf6+ Qxf6 14.Bg3 looks ok for Black.

The attack is so strong, that White may have skipped the recapture on b3 and played 20.fxe5 (e. g. 20...Bc4 21.Rg3+ Kh7 22.Rxf6).

Source: 'Wiener Schachzeitung', May-June 1906, pp. 180-181

Aug-24-20  perfessor: Four pieces against a virtually undefended king? It's a slaughter. Qxh6 is mate in 2.
Aug-24-20  Cheapo by the Dozen: Another Monday, another sacrifice of a heavy piece on the h-file.
Aug-24-20  Walter Glattke: Nice queen sac with 24.Qxh6+ Kxh6 25.Nf5# White initiative with 24.Nf5 Nxf5 25.Qxf5+(25.exf5?? Qe1#) Qxf5 26.exf5 Rfe8 27.Rgh4 Kg7 or 27.Rhg3 Re7
Aug-24-20  stacase: Discovered checkmates are always fun.
Aug-24-20  Stale.Mate: Z-B may have lost the game, but he won the book competition.
Aug-24-20  Brenin: Monday, so Q sac: 24 Qxh6+ Kxh6 25 Nf5 mate. Black should have avoided this with 23 ... Rh8. Earlier, 12 ... Be7 was a horrible blunder: g5 was needed.
Aug-24-20
Premium Chessgames Member
  agb2002: Black threatens Qh5.

The white rooks aim at the black king. Hence, 24.Qxh6+ Kxh6 25.Nf5#.

Aug-24-20  TheaN: <24.Qxh6+ Kxh6 25.Nf5#> requires no incredible insight. How Black destructed himself with 11....O-O and 12.....Be7 is ever more surprising. Surprising, because they're natural moves, but mostly because it goes so fast after this.
Aug-24-20  zb2cr: A Queen sacrifice Monday, with 24. Qxh6+, Kxh6 (forced); 25. Nf5#.
Aug-24-20
Premium Chessgames Member
  offramp: <Karpova: ... <J A Sybin> received a brilliancy prize for this game.>

What a lucky git. It should have gone to Ivan Andreevich Zybin.

Aug-24-20
Premium Chessgames Member
  chrisowen: Let's begin qh6 no.
Aug-24-20  DrGridlock: I've always wanted to deliver a double-discovered checkmate over the board.
Aug-24-20
Premium Chessgames Member
  Predrag3141: I remember this story from my childhood:

https://www.chess.com/forum/view/ge...

Aug-24-20  Brenin: Was this game worth a brilliancy prize? It features an effective but routine build-up of forces confronting Black's K, followed by a pretty but rather obvious Q sacrifice. Perhaps there wasn't much competition.
Aug-24-20
Premium Chessgames Member
  chrisowen: And it was in wood no?
Aug-24-20  Damenlaeuferbauer: After long thinking, the unknown (at least to me) Russian chess player Ivan Andreevich Zybin finally found the mate in 2 moves with the nice queen sacrifice 24.Qxh6+!,Kxh6 25.Nf5#. It is a good idea from cg to honor unknown masters, who enrich chess with their games.
Aug-24-20
Premium Chessgames Member
  AylerKupp: Given that this is a Monday, a queen sac is likely called for. And I immediately noticed the Black king on the h-file and the White rooks on the g- and h-files. So if the Ph6, the Qh5, and the Nh4 were to be removed, it would be mate.

So the solution was simple, 24.Qxh6+ (removing the Ph6) 24...Kxh6 (forced, but removing the Q that was on h5) 25.Nf5# (removing the N that was on h4 and, as a side benefit, preventing 25...Qh5). And, since Black's king is in a double check, should that be 25.Nf5##?

Good, I needed a Monday.

Aug-24-20  stacase: <DrGridlock: I've always wanted to deliver a double-discovered checkmate over the board.>

Ha ha ha ha ha ha ha ha ha! I never even noticed that it was double check as well.

Aug-24-20
Premium Chessgames Member
  gawain: I thought the h3 rook was a pawn. That makes it a slightly harder puzzle.

Must get my eyes checked. Or brain.

Aug-24-20  Nosnibor: <gawain> I suffered the same illusion initially!
Aug-24-20
Premium Chessgames Member
  eternaloptimist: This is a very easy puzzle indeed. I solved it almost immediately
Aug-24-20  RandomVisitor: Maybe 6...b5 was called for - his position started to drift gradually and b5 could have kept it close to even.


click for larger view

Stockfish_20082118_x64_modern:
NNUE evaluation using C:\Users\TheDesk\Downloads\20200812-2257.bin enabled.

<48/57 13:38 0.00 7.dxe5 dxe5 8.Qxd8+ Nxd8 9.Bb3 Nd7> 10.a4 b4 11.Be3 f6 12.Nbd2 Bc5 13.Rfc1 Bxe3 14.fxe3 Nc5 15.Ne1 Bb7 16.Nd3 Nxb3

Aug-24-20  ku0826: A Queen sacrifice and double-discovered checkmate!! beautiful mate.

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