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| Mar-24-13 | | M.Hassan: "Insane"
White to play 22.?
White is a pawn down.
I felt the attack should start with the Rook:
22.Rxh7 Kxh7
<if King declines 22...Rg8 23.Rxf7 Qd8 24.Bxh6 White becomes two pawns up and Black King is in serious trouble> 23.Rg1+ Kh7
24.Qd3+ Kh8
25.Bxh6 Qxe5
26.Bg7+ Kg8
27.Bxf6#
Time to check
==============
Not like the game line. Don't see anything wrong with this line either.Do you? |
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| Mar-24-13 | | apexin: This made me almost jump out of my chair;
23.Rxd7!! So it was control of the dark squares,and this crazy Rook sacrifice... WOW. 22.Bxh6 Kxg6 23.Qd2 (my original intention)
23...Qxe5 24.Qxh6+ Nh7 and black is alive and winning.<M.Hassan> Your idea is also good, 22.Rxg7 Kxg7 23.Rg1+ Kh7 24.Qd3+ Bc3 (DS) 25...Rg8 26.Ng6!! (amazing) fx6 Bxf6+ Rxg7 Qg6+!! Of course this was prepared by Gata; Rxd7!! what a crazy move. |
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| Mar-24-13 | | morfishine: <M.Hassan> Very nice! Much better than my efforts to make 22.Rxg7 work |
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| Mar-24-13 | | lost in space: Haven't found 23. Rd7; OTB I would have played 22. Bc3 with = |
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| Mar-24-13 | | shivasuri4: <M.Hassan>, how about 23...Kh8 in your line? |
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Mar-24-13
 | | OhioChessFan: 23...Kh8 looks like it is a deal breaker for the 22. Rxg7 line. |
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Mar-24-13
 | | Richard Taylor: I don't try to work these out. I do some (I've solved about 2 out of 100 or so!) but mostly they take too much time. The ideas are interesting though. Great combo by Kamsky. |
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Mar-24-13
| | Richard Taylor: I played a 5 minute game with Seirawan online once. I lost, of course. I was surprised to be playing such a strong and famous player. I was waiting to watch an international game and took up an open challenge. As did Ulf Anderson. I typed to Seirawan: "Please tell me when to resign."! He said back: "As long as you tell me"!
Both GMs won.
But I once checkmated a lesser known GM. (Not a very profound combo but it worked.) I think that was on WCN, not sure if it's still going. But in the 2 0 open challenge I once got a draw with Susan Polgar. But then I lost the next time. But no one make much progress against Larry Christiansen. He was or is very droll in his comments as he played... |
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Mar-24-13
 | | An Englishman: Good Morning: A little too easy for a Sunday, making me wonder if I had already seen this somewhere. |
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| Mar-24-13 | | Patriot: This is very tough. I couldn't find anything after 22.Rxg7 Kxg7 23.Rg1+ Kh8 24.Bf4 Rg8 or other move orders. 22.Bf4 certainly looks reasonable but after 22...Qe7 I just don't see it. 22.Nd7 Nxd7 23.Qg4 Rg8 24.Bf4 Qc6 25.Rxd7 Qxd7 26.Be5 looks interesting. Black could play 24...Ne5 instead, and 25.Qg3 f6. I'm not so sure about any of this. I also tried 22.Rxg7 Kxg7 23.Nd7 Nxd7 24.Qg4+ Kh8 25.Rg1 Rg8. I spent too much time on this to be practical. I don't see it. |
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| Mar-24-13 | | patzer2: One point of the demolition 21. Bxh6!! gxh6 22. Rd7!  is that if 22...Nxd7
click for larger view23. Qd2! leads to mate after 23...Kh7 24. Ng4!
click for larger viewwhen play might continue 25...f5 26. Qxh6+ Kg8
click for larger view27. Ne5# |
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| Mar-24-13 | | howlwolf: I didn't spend a lot of time on this, felt Bxh6 had to be the first move, but then went with the quiet (too quiet) Qd2, thinking only of Ng8 when I believe Rxg8+ does lead to mate; Kxg8 is forced and then Qxh6 and I thought white mates. (He doesn't Bxf2 stops the rook check on g1. I also overlooked that black could play Kh7 where I think Qd3+ may force a repetition of position. Rd7 is above my pay grade and I doubt I would have found it even if I spent my usual 15-20 minutes on a Sunday problem. 6/7 this week, which is a bit better than I have been doing. Some consolation because I was beginning to think I was having too many senior moments. |
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| Mar-24-13 | | mistreaver: Sunday. White to play. Insane? 22.?
Hmmm, i think i recall seeing this position when preparing some caro-kann lines.
On first sight i wanted to play Ng6+, but then i started liking Rxg7 and Bxh6 even more.
Unfortunately i don't have enough time to deal with the puzzle, so i will peak at the solution. |
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| Mar-24-13 | | David2009: Kamsky vs Seirawan, 2012 White 22? Insane Missed it completely. 22.Bxh6 gxh6 is useless without the dazzling (and insane-looking) 23.Rd7!!. So why didn't Black play 23...Nxd7? Here's a Crafty EGT link to play the variation out and find out: http://www.chessvideos.tv/endgame-t... (White to win quickly). Here's the puzzle position
click for larger view
linked to Crafty End Game Trainer to explore alternative defences: http://www.chessvideos.tv/endgame-t... After 22.Bxh6! gxh6 23.Rd7! Qxd7! 24.Nxd7 the ever-inventive robot finds 24...Rg8! and after 25.Rd1 Nxd7 26.Rxd7 Rg1+ 27.Rd1 Rag8 28.Kc1 Rxd1+ 29.Kxd1 Rd8+ 30.Ke1 Rd5 we reach
click for larger view
which (at my skill level) I can't win unaided. The best I can do is to draw by repetition: 31.Qg4 (Black threatens 31...Rf5 and if 32.f3 Rxh5)b5 32.Qf4 Kg7 33.Qg3+ Kf6 34.Qf4+ Kg7 35.Qg3+. There are presumably improvements for White somewhere in this sequence. Have fun finding the win: please post it (and 'chapeau' if you can do it without silicon assistance). |
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| Mar-24-13 | | James D Flynn: Black is a pawn up and White’s K-side pawns are isolated and potentially vulnerable but White N and KR are aggressively placed and he can break open Black’s K-side pawn cover by 22.Bxh6.
22.Bxh6 gxh6 23.Qd2 Ng8(if Kh7 23.Qd3+ Ne4(if Kh8 24.Qg3(threats 25.Qg7# and 25.Ng6+ winning the Black Q) Rg8 25.Ng6+ fxg6 26.Qxc7 Rac8 27.Qe5 Be7 28.Rd7 gxh5 29.Rxg8+ Rxg8 30.a3 Re8 31.Rxe7 Rxe7 32.Qxf6+ Rg7 33.Qxh6+ Kg8 34.Qxe6+and White has a Q versus R endgame and a secure K the endgame is clearly won) 24.Qxe4+ f5 25.Qf4 Bd6 26.Rg6 Qg7( the only defense to Qxh6#) 27.Rxg7+ Kxg7 28.Rg1+ Kf6 29.Nd7+ Ke7 30.Rg7+ Ke8 31.Qxd6 Rf7 32.Nf6+ Rxf6 33.Qe7#)24.Rxg8+ Kxg8 25.Qxh6(if Rg1 Kh7 26.Qd3+ f5 27.Qd7+ Qxd7 28 Rxd7+ Kh8 29.Rgg7 Bd4(if Rfd8 30.Rh7+ Kg8 31.Rdg7+ Kf8 32.c3 Rd1+ 33.Kc2 Rh1 34.Rxb7 Kg8 35.h6(threat Rbg7+ and Rh8#) Rg1 is unclear) Bxf2 (not Qxe5 26.Rg1+ Qg7 27.Qxg7#) 26.Qg5+ Kh7(Kh8 27.Qf6+ Kh7(not Kg8 28.h6 mates next move)transposes) 27.Rd7 Bh4(if Rad8 28.Qg6+ Kh8 29.Qh6+ Kg8 30.Ng6(now White threatens mate in one by either Qh8# or Ne7# the only way to counter both is to take the N) fxg6 31.Qg7# )28.Qg6+ Kh8 29.Nxf7+ Rxf7 30.Rxf7(not Qxf7 Qxd7 31.Qxd7 Rd8 32,Qxd8 Bxd8 and Black wins)Qxf7 31,Qxf7 Rg8 32,a3 and White has Q and 4 pawns against R, B, and 3 pawns in an endgame where his K is secure and the Black K has no pawn cover and the Black pawns are scattered and vulnerable, currently 2 are en prise. The endgame is clearly won for White, |
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| Mar-24-13 | | James D Flynn: I ws puzzled why Seirawan played 23...Qxd7 instead of Nxd7, Certainly after 23....Nxd7 24,Qd2 Ka7 25.Nxd7 the threat of Nf6+ must be addressed but the reply f5 and if 26.Rg6 f4 makes the win very tricky. |
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| Mar-24-13 | | agb2002: White is a pawn down.
The first idea that comes to mind is 22.Bxh6:
A) 22... gxh6 23.Rd7 (to divert the knight; 23.Qd2 Qxe5 24.Qxh6+ Nh7 25.Qg7+ Qxg7) A.1) 23... Nxd7 24.Qd2 (24.Qg4 Qxe5) 24... Kh7 (24... Nf6 25.Qxh6+ Nh7 26.Qg7#) 25.Ng4 and Qxh6 followed by Ne5 seems unavoidable. A.2) 23... Qxd7 26.Nxd7 Rg8 (26... Nxd7 27.Qd2 + -) 27.Rd1 + - [Q vs R+B]. A.3) 25... Qb6 26.Qd2 Be3 (26... Kh7 27.Nxf7 + -) 27.fxe3 Nxd7 28.Qg2 Rg8 29.Nxf7+ Kh7 30.Qe4+ and mate next. B) 22... Rg8 23.Bf4 Qe7 24.Ng6+ fxg6 25.hxg6 Rgd8 26.Rh1+ Kg8 27.Rh3 looks winning. For example, 27... Rxd8+ 28.Qxd8 Rd8 29.Qh1 Kf8 30.Rh8+ Ng8 31.Rxg8+ Kxg8 32.Qh7+ Kg8 33.Qh8#. C) 22... Ne8 23.Rd7 looks disasterous for Black. |
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| Mar-24-13 | | M.Hassan: <morfishine: <M.Hassan> Very nice! Much better than my efforts to make 22.Rxg7 work> Thank you sincerely |
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| Mar-24-13 | | M.Hassan: <shivasuri4: <M.Hassan>, how about 23...Kh8 in your line?> Right. Becomes more complicated:
23.............Kh8
24.Bc3 Rg8
25.Ng6+ fxg6
26.Bxf6+ Kh7
27.Qe4 Qf7
28.Rxg6 Rxg6
29.fxg6+ Qxg6
30.Qxb7+ Kg8
31.Qxa8+ Bf8
32.a4 Qxf6
33.Qxa7
Looks like Black is stronger or possibly it could be a draw?. I am not sure, what do you think? |
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| Mar-25-13 | | Abdel Irada: <Unfortunately i don't have enough time to deal with the puzzle, so i will peak at the solution.> "Go Tell It On The Mountain." |
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| Mar-25-13 | | Abdel Irada: Confession time: Since Saturday nights tend to be busy for me, I never so much as glanced at any line other than those emerging from the "intuitive" 22. Rxg7. So much for intuition. :-S |
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| Mar-25-13 | | David2009: Kamsky vs Seirawan, 2012 postscript: Some very interesting analysis by <M.Hassan>. MH: have you considered opening your forum so that we can comment to you directly? According to Fritz 12 and Crafty EGT the line 22.Rxg7 does indeed lead to no more than a draw (as MH suspected): the EGT improves the defence at move 26 with the elegant 26...Qf4! after which White has to play accurately to hold the draw. In the main line 22.Bxh6 gxh6 23.Rd7 Qxd7
24.Nxd7, 24...Nxd7? was a serious mistake: instead 24...Rg8 may well hold (!). Here's a Fritz versus Crafty EGT version suitable for cutting-and-pasting into the game score. Right-click on the game score to paste it in. [Event "US Championship"]
[Site "Saint Louis USA"]
[Date "2012.05.17"]
[Round "9"]
[White "Gata Kamsky"]
[Black "Yasser Seirawan"]
[Result "1-0"]
[ECO "B19"]
[Annotator "Fritz 12 vs Crafty EGT"]
[PlyCount "69"]
[EventDate "2012.05.07"]
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5
Bh7 9.Bd3 Bxd3 10.Qxd3 e6 11.Bd2 Ngf6 12.O-O-O Be7 13.Ne4 Nxe4 14.Qxe4
Nf6 15.Qd3 O-O 16.Kb1 c5 17.g4 Nxg4 18.Qe2 Kh8 19.Rhg1 Nf6 20.dxc5 Qc7
21.Ne5 Bxc5 22.Bxh6 (22.Rxg7 Kxg7 23.Rg1+ Kh8 24.Bc3 Rg8 25.Ng6+ Kh7 26.
Bxf6 Qf4 27.Bc3 Qf5 28.Rg3 fxg6 29.Rf3 gxh5 30.Rxf5 Rg1+ 31.Be1 exf5 32.
c3 Rf8 33.Kc2 h4 34.Qe5 Rf7 35.Bd2 Be7 {is equal}) 22...gxh6 23.Rd7 Qxd7
24.Nxd7 Nxd7 {A mistake: rook g8 probably holds} (24...Rg8 25.Rd1 Nxd7 26.
Rxd7 Rg1+ 27.Rd1 Rag8 28.Kc1 Rxd1+ 29.Kxd1 Rd8+ 30.Ke1 Rd5 31.Qf3 {better than 31.queen g4 suggested in David2009's kibitz}
Kg7 32.c4 Rd4 33.b3 b6 34.Qg3+ Kf6 35.Qb8 Kg7
36.Qe5+ { if 36.queen xa7 rook h4 but this might give better winning chances than the main Fritz line} 36...Kg8 37.Qg3+ Kf8 38.Ke2 Rd6 39.Qe5 Ke7 40.Qf4
e5 41.Qe4 Kf6 42.f4 exf4 43.Qxf4+ Ke7 44.Qh4+ Kd7 45.Qh1 Re6+ 46.Kd3 a5
47.Qf1 Ke7 48.Qf4 Rd6+ 49.Kc2 Re6) 25.Qd2 Kh7 26.b4 Rad8 27.bxc5 Nf6 28.
Qf4 Ne8 29.Qe4+ Kh8 30.Qxb7 Ng7 31.Qxa7 Rc8 32.Rd1 Nf5 33.Rd7 Kg7 34.a4
Kf6 35.a5 1-0 |
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| Mar-25-13 | | snakebyt: The comments are really great today. I'm still trying to absorb the solutions for this very insane game. I tried obvious Ng6+route, then tried Bxh6 I saw the dRook line open up and saw d7 was covered by my N. I ran out of steam after five moves. Wow! |
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| Feb-18-19 | | mathlover: fantastic game by gata |
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| Jul-12-20 | | aliejin: fantastic homemade preparation! |
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Kibitzing
sac: 22.Bxh6