Dariusz Swiercz vs Marcel Kanarek (2016)

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Dariusz Swiercz vs Marcel Kanarek
Polish Men's Championship (2016), Poznan POL, rd 7, Apr-05
Caro-Kann Defense: Advance. Short Variation (B12) · 1-0

ANALYSIS [x]

FEN COPIED

explore this opening	find similar games	4 more Swiercz/M Kanarek games
+ sac: 20.Bxh6	PGN: download \| view \| print	Help: general \| java-troubleshooting

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Apr-08-16		Robed.Bishop: Rxf7+!

Apr-08-16		BobbieM: 19 ...c4 was the move that allowed the sac?

Apr-08-16		Rookiepawn: 19... Nxf4 20.Nxf4 cxd4 21.Nxd4 Nxe5 ... looks a little better for B?

Nov-23-17		leRevenant: nice play

Nov-23-17		Walter Glattke: Options to 25.Qxd3!? are 25.Nxa8 or 25.e6, 20.-Rh8!?

Nov-23-17		aporia: No, BobbieM, it's that white needs to follow up the sac with a knight check on g5.

Nov-23-17		FSR: 20.Bxh6 (threatening Ng5+) Bxh6 21.Ng5+ Kg7 22.Rxf7+ Rxf7 23.Nxe6+ Kh7 24.Nxc7 Rc8 25.Nxd5 Rc8 26.e6 looks good enough.

Nov-23-17		gofer: Well, I saw the sequence for the first five moves and thought my job was done. Boy was I wrong!!! <20 Bxh6 ...> Any other move than Bxh6 seems to be a bad idea. 20 ... cxd3 21 Ng5+ Kg8 22 Bxg7 Kxg7 23 Qh7# <20 ... Bxh6> <21 Ng5+ ...> 21 ... Kh8 22 Qxh6+ Kg8 23 Qh7# 21 ... Kg8 22 Qxh6 any move 23 Qh7# <21 ... Kg7> <22 Rxf7+! Rxf7> <23 Nxe6+ Kh7> <24 Nxc7 ...> click for larger view At this point, I was happy with my progress. But completely missed the rest of the sequence... ...Nil Point!

Nov-23-17		patzer2: For today's Thursday (20. ?) puzzle, I calculated 20. Bxh6! Bxh6 21. Ng5+ Kg7 22. Rxf7+ Rxf7 23. Nxe6+ Kh7 24. Nxc7 +-. After looking to see the game continuation, I was glad to see I got the same solution as the strong GM playing White. However, I was a little bit puzzled by the follow-up 25. Qxd3 +- (+2.59 @ 31 ply, Stockfish 8). I would have played 25. Nxa8 +- (+10.14 @ 29 ply, Stockfish 8). P.S.: Black's decisive error was 19...c4? which allows 20. Bxh6! +- (+9.07 @ 29 ply, Stockfish 8). Instead, 19...Nxf4 20. Nxf4 cxd4 = (0.00 @ 32 ply, Stockfish 8) holds it level.

Nov-23-17		mel gibson: I saw this one quickly. Knights can be so dangerous. Black loses his Queen. The computer says: 20. Bxh6 (20. Bxh6 (♗f4xh6 ♗g7xh6 ♘f3-g5+ ♔h7-g7 ♖f1xf7+ ♖f8xf7 ♘g5xe6+ ♔g7-h7 ♘e6xc7 ♖a8-a7 ♘c7-e6 ♘d7-f8 ♘e6-g5+ ♔h7-g7 ♘g5xf7 ♖a7xf7 ♘d3-f2 ♗h6-g5 b2-b3 c4xb3 ♕h3xb3 ♘f8-e6 ♖a1-d1 ♘g6-f4 ♕b3-b5 ♘e6-c7 ♕b5xb6 ♘f4-e2+ ♔g1-h1 ♘e2-c3 ♖d1-a1) +8.42/18 299) score for White +8.42 depth 18

Nov-23-17		thegoodanarchist: Got it! Happy Thanksgiving!

Nov-23-17		morfishine: I was pleased to find the first move<20.Bxh6> and the second move <21.Ng5+>, but after that, well time to start cooking *****

Nov-23-17		patzer2: The opening is a good example of strong play by White in the advance variation of the Caro Khan (i.e. 1. e4 c6 2. d4 d5 3. e5). According to our Opening Explorer, White's 9. a4 is a relatively new move in the theory of this opening, first appearing in our chessgames.com database in White's win in Wang Hao vs R Antonio, 2007. More often played is 9. Ne1 as in the drawn GM game Naiditsch vs A Donchenko, 2017 or White's win in Thore Perske vs M Matlakov, 2017 or Black's win in T Burg vs B Bok, 2017. White had an edge coming out of the opening, but almost gave it up with 19. Nf3 which allows 19...Nxf4 = (0.00 @ 33 ply, Stockfish 8). Instead, 19. c3 c4 20. Ne1 Nxf4 21. Rxf4 ± (+1.27 @ 30 ply, Stockfish 8) would have kept up the positional pressure with a King side initiative and space advantage.

Nov-23-17		Ercan: How can I solve the java problem on chrome? I can not see the game.

Nov-23-17		Cheapo by the Dozen: I'm with <patzer2> rather than <gofer>. That White opted to let Black have 3 pieces for the queen doesn't mean we're wrong for making a different, more obviously winning choice.

Nov-23-17		GlennOliver: "<Ercan>: How can I solve the java problem on chrome? I can not see the game." Select a different PGN Viewer.

Nov-23-17		Ercan: GlennOliver: I've done, thank you...

Nov-23-17		agb2002: The material is identical. Black threatens cxd3 and Nxf4. The weak black castle and the position of the black queen suggest 20.Bxh6: A) 20... Bxh6 21.Ng5+ Kg7 (21... Kg8 22.Qxh6 and mate in two; 21... Kh8 22.Qxh6+ Kg8 23.Qh7#) 22.Rxf7+ A.1) 22... Rxf7 23.Nxe6+ Kg8 24.Nxc7 seems to win decisive material: A.1.a) 24... Rc8 25.Qxh6 A.1.a.i) 25... Ndf8 26.Nxd5 cxd3 27.Nf6+ Rxf6 28.exf6 dxc2 29.Rc1 followed by Rxc2 (the black rook must stop Qg7#) + -. A.1.a.ii) 25... Rxc7 26.Qxg6+ Rg7 27.Qe6+ Kh8 28.Nxd5 cxd3 29.cxd3 + -. A.1.b) 24... Be3+ 25.Qxe3 Rxc7 (25... cxd3 26.Nxd5 dxc2 27.Nc3 + -) 26.Nf2 + -. A.2) 22... Kg8 23.Qxh6 Rxf7 24.Qxg6+ Rg7 25.Qxg7+ Kxg7 26.Nxe6+ Kf7 27.Nxc7 Rc8 28.Nxd5 cxd3 29.c3 + -. A.3) 22... Kh8 23.Qxh6+ and mate next. B) 20... cxd3 21.Ng5+ Kg8 22.Bxg7 and mate in two. C) 20... Kg8 21.Bxg7 Kxg7 22.Ng5 Rh8 23.Rxf7+ Kg8 24.Qxe6 C.1) 24... Ngf8 25.Rxf8+ wins (25... Kxf8 26.Qf7#). C.2) 24... Ndf8 25.Rxf8+ Kxf8 26.Rf1+ Kg7 27.Qf6+ (probably better than Rf7+) 27... Kh6 (27... Kg8 28.Qxg7+ Qg7 29.Qe6+ Qf7 30.Qxf7#) 28.Rf3 Kh5 29.Nf4+ Kg4 (29... Kh6 30.Rh3#) 30.Rg3#. C.3) 24... cxd3 25.Rxd7+ Kf8 26.Qf7#.

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