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| Nov-20-12 | | Alphastar: The theme should be spotted in an instant, but it's a worthwhile exercize to calculate how the attack is going to end. |
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| Nov-20-12 | | lost in space: 14. Nh5! and there is no defence.
This is line were Black tries to fight til the end:
14...gxh5 15. Bxh7+ Kh8 16. Bg6+ Kg8 17. Qh7+ Kf8 18. Bh6+ Ke7 19. Qxf7+ Kd8 20. Qxe8# |
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Nov-20-12
 | | FSR: <Abdel Irada> In your line, 14.Nh5 Bxh2† 15.Kh1 gxh5 16.Bxh7† Kh8 17.Bg6† Kg8 18.Qh7† Kf8 19.Bh6† Ke7 20.Qxf7† Kd6, 21.Qxe8! is a big improvement on your recommendation 21.Qxc7†. 
click for larger viewBlack is down material, undeveloped, and his king is in grave danger. White threatens 22.Rad1†, 22.Bf8†, and even the simple 22.Kxh2. You are right that 14...Bxh2† is better than the game continuation, but Black's position remains quite hopeless. I daresay that Donner wanted to get this nightmare over and get to the bar to drown his sorrows. |
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| Nov-20-12 | | Abdel Irada: Yes, <FSR>, you are probably right. Black's "counterplay" looks pretty illusory in that line. |
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Nov-20-12
 | | Once: The critical position in this game seems to come at this point:
click for larger viewWhite has just played 13. dxc5. Black must decide how to recapture or whether to flick in a zwischenzug such as 13...Bf8 to shoo away the black queen. Donner didn't see the danger and played 13...Nxc5 to bring us to our puzzle position. And, as we have seen, 14. Nh5 is a crushing reply. Instead black could have played a whole host of moves to keep the game level. The simplest are probably 13...Bxc5 and 13...Qxc5, but Fritzie prefers 13...Bxg3 which he thinks gives black a slight edge. The problem with black's 13...Nxc5 is that the knight is needed on d7 to protect f6. Take a look at this: 13...Nxc5 14. Nh5 Bf8 
click for larger viewNow white has mate in two - 15. Nxf6+ Kh8 16. Qxh7#
But if black had recaptured the c5 pawn with his bishop, we would get this: 13...Bxc5 14. Nh5 Bf8 
click for larger viewBecause the black knight is on d7, white can't sensibly play Nxf6+. So it seems that the losing move for black was 13...Nxc5. I can see why black wanted to play it. It puts the knight on a strong square, helps to develop the Bc8 and threatens to capture the Bd3 (giving black the bishop pair). But whilst is might have strategic plusses, it has one huge tactical flaw - 14. Nh5. I suppose the learning point here is that we should examine every check, capture and threat that our opponent might play against us. It's not enough just to focus on our own attacking plans. |
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| Nov-20-12 | | SimonWebbsTiger: The Dan Heisman Novice Nook Award goes to <Once>! <I suppose the learning point here is that we should examine every check, capture and threat that our opponent might play against us. It's not enough just to focus on our own attacking plans.> A very common refrain in Dan's articles and with good reason - it makes good sense. |
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| Nov-20-12 | | King Sacrificer: <FSR: <Abdel Irada> In your line, 14.Nh5 Bxh2† 15.Kh1 gxh5 16.Bxh7† Kh8 17.Bg6† Kg8 18.Qh7† Kf8 19.Bh6† Ke7 20.Qxf7† Kd6, 21.Qxe8! is a big improvement on your recommendation 21.Qxc7†.> Another improvement can be 21. Rad1 and White Q can take the rook with check next move. I feel there is a mate somewhere in this line but i'm not able to calculate it. |
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Nov-20-12
 | | agb2002: The material is equal.
White can open the black castle with 14.Nh5:
A) 14... Bf8 (or 14... Ne6) 15.Nxf6+ Kh8 16.Qxh7#.
B) 14... gxh5 15.Bxh7+ Kh8 16.Bg6+ Kg8 17.Qh7+ Kf8 18.Bh6+ Ke7 19.Qxf7+ Kd8 20.Qxe8#. C) 14... Bxh2+ 15.Kh1 gxh5 16.Bxh7+ Kh8 17.Bg6+ Kg8 18.Qh7+ Kf8 19.Bh6+ Ke7 20.Qxf7+ Kd6 21.Qxe8 + - [R+2P vs N], with the double threat 22.Rad1+ and 22.Kxh2, winning more material. |
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| Nov-20-12 | | eblunt: <once> thank you for your analysis, I didn't understand why black didn't simply play 13 .... Bxg3. Now I see that he should have !! |
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| Nov-20-12 | | LoveThatJoker: <14. N-R5! PxN>
(14...B-B1 15. NxP+ K-R1 16. QxRP mate)
<15. BxP+ K-R1 16. B-N6+ K-N1 17. Q-R7+ K-B1 18. B-R6+ K-K2 19. QxP+ K-Q1 20. QxR mate> LTJ |
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| Nov-20-12 | | zb2cr: Found this one quickly. Black's check 14. ... Bxh2+ leaves him with the same problems after 15. Kh1. |
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Nov-20-12
 | | Oxspawn: I think (once we get some red herrings out of the way) that this is a king chase longer than it appears at first sight – unless I missed something of course – and that the order of moves matters as does where we put the white squared bishop when it moves to reveal check. First the 'alternatives'
14. Nh5 If black does not take the knight then Qg7++.
If
14. Nh5 Bxh7+
15. Kh1…
If
14. Nh5 Bf4
15. Bxf4….
Now the main course....If
14. Nh5 gxh5
15. Bxh7+ Kh8
16. Bf6+ Kg8
17. Qh7+ Kf8
18. Qh8+ Ke7
19. Re1+ Kd8
20. Qxe8++
I'm in Maputo and it is a bit hot for chess. Hope I dont find this was a two mover! |
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| Nov-20-12 | | Alex56171: <FSR>, it seems that the folks at Chessmetrics stopped collecting data after 2005. You know why? |
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| Nov-20-12 | | Patriot: 14.Nh5 -- threatening mate on g7
14...gxh5 15.Bxh7+ Kh8 16.Bg6+ Kg8 17.Qh7+ Kf8 18.Qxf7# 14...Ne6 15.Nxf6+ Kh8 16.Qxh7#
14...Bxh2+ 15.Kh1 doesn't seem to change anything.
14...Bf8 15.Nxf6+ Kh8 16.Qxh7#
I don't see any other defensive tries. This seems a little more involved for a Tuesday--especially if you're not familiar with the pattern in the 14...gxh5 line. |
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| Nov-20-12 | | Patriot: I goofed on this one. f7 is guarded by the queen--How did I miss that? I looked to see if anything was guarding that pawn... Oh well! |
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Nov-20-12
 | | chrisowen: Thin picking sussed in heading off nh5 in give light room to stomp black up the creek now ledge i got 13...Nxc5 a pleb 14.nh5! sheesh among bd6xg3 would suffice instead you Nxc5 inceed the pincer h6 g3 and d3 converge together on black eyes wangle d3 yet cog in h5 as threat in chicken tin h5 at ahead gxh5 15.Bxh7+ king sidesteps slicing through in Kh8 16.bg6+ fate decreed in pot a tow edges it 17.Qh7+ bade mate in three now light it sabre g6 in covering f7 in had juicy it 17...Kf8 18.bh6+ second serving bishop corner off a kings right you lip e7 19.Qxf7+ king pipeline d8 - boot h5 - 20.Qxe8 meet sitter ergo. |
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| Nov-20-12 | | kevin86: White sacs the knight to mate with queen and bishop...aided by a rook later. |
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Nov-20-12
| | FSR: <Alex56171: <FSR>, it seems that the folks at Chessmetrics stopped collecting data after 2005. You know why?> I don't know. I assume because it was a massively time-consuming enterprise from which they weren't making any money. |
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| Nov-20-12 | | TheTamale: <C4Gambit>, thanks for your post. You answered the question I had. |
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| Nov-20-12 | | Bengambit: Has anyone seen the quote of the day?? It says,"When you absoultely don't know hat to do anymore,it is time to panic.." John van der Wiel,but may I add to that quote for all of the chess players sake,"When you absolutely don't know what to do anymore,it is time to study,..why?? It's because we are getting better at playing the game of chess!!! |
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| Nov-20-12 | | notyetagm: A Fuderer vs J H Donner, 1952 <agb2002: The material is equal. White can open the black castle with 14.Nh5:
A) 14... Bf8 (or 14... Ne6) 15.Nxf6+ Kh8 16.Qxh7#.
B) 14... gxh5 15.Bxh7+ Kh8 16.Bg6+ Kg8 17.Qh7+ Kf8 <<<18.Bh6+>>> Ke7 19.Qxf7+ Kd8 20.Qxe8#.> Black clearly missed the importance of 18 ♗c1-h6+, forcing Black to <BLOCK THE GUARD LINE> from the Black c7-queen to the f7-sq with 18 ... ♔f8-e7 19 ♕h7xf7+. |
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| Nov-20-12 | | sfm: Donner surely saw the obvious 14.Nh5, and also saw, that he had it all under control. Larsen wrote: "This kind of mistake is common. The player sees a threat, then determines that it is not a problem, as he has a good reply - and then he makes a move that destroys the reply!" This was exactly what happened when Donner played 13.-,Nxc5?? |
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| Nov-20-12 | | Nullifidian: One interesting thing about this position is that what I initially thought would be a spite check is actually the only way of preventing Black from being immediately mated. Without the 'spite check', the solution is:
14. ♘h5 ♙gxh5 15. ♗xh7+ ♔h8 16. ♗g6+ ♔g8 17. ♕h7+ ♔f8 18. ♗h6+ ♔e7 19. ♕xf7+ ♔d8 20. ♕xe8# With it, the solution goes:
14. ♘h5 ♗xh2+ 15. ♔h1 ♙gxh5 16. ♗xh7+ ♔h8 17. ♗g6+ ♔g8 18. ♕h7+ ♔f8 19. ♗h6+ ♔e7 20. ♕xf7+ ♔d6 21. ♕xe8 and now White has the equivalent of a piece advantage, and will probably pick up the h2 bishop in short order too. |
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| Nov-30-12 | | LIFE Master AJ: http://www.ajschess.com/lifemastera... I made a webpage on this game ... |
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Aug-22-13
 | | plang: nice miniature |
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sac: 14.Nh5