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| Aug-19-12 | | dick50: on 20 Qh8 d5, White can play Bxd5. Now White LSB can have a good career on long diagonal plus the open d file will still belong to a white Rook. The threat of Be7 also stands.This should be sufficient for White to press for a win |
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| Aug-19-12 | | erniecohen: <sevenseaman: Candidates.
B) 1. Qh8. The side effect of this move is that it frees up the Black N. But this is Kupreichikian Utopia. Why would Black play <20...Nxb3>. This is not his best move. His much better move is <20...d5>. (Danner's Spanner) 20. Qh8 d5 21. Rxd5 Rxd5 22. Be7 Nxb3 23. axb3 Rxf5 24. Qxf8 Kd7 25. Rd1+ Rd5 Rxd5+ exd5 and White's chances have evaporated. I should like to know how White wins against best defense.> Instead of 22. ♗e7, just 22. ♗xd5 does the trick. E.g. 22...♘d7 23. ♗e7 ♕c7 24. ♖e3 and Black has no defense against the various White threats (e.g. ♖c3-♖xc8-♘d6+). |
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| Aug-19-12 | | sevenseaman: <erniecohen> <Instead of 22. Be7, just 22. Bxd5 does the trick. E.g. 22...Nd7 23. Be7 Qc7 24. Re3 and Black has no defense against the various White threats (e.g. Rc3-Rxc8-Nd6+)>. Nice of you to to respond but I have not understood what you have tried to convey. Black defends with 22. Qb4 and not 22...Nd7 Please write your winning combination after this;
<20. Qh8 d5 21. Rxd5 Rxd5 22. Bxd5 Qb4> Or try this Crafty link for clarity.
http://www.chessvideos.tv/endgame-t... |
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| Aug-19-12 | | backyard pawn: Miracles do happen, I can solve a Sunday puzzle. First thing I thought when I looked at the puzzle was how I would try to exploit d6 with the White knight: Qh8 followed by Be7 looked like the perfect way for White to add attackers and remove defenders. Once that was done, Nd6 would lead to Black losing her Queen, either as played in the game, or by discovered check if the Black king moved onto the d-file. At this point, Black's game is in shambles. |
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| Aug-19-12 | | morfishine: Oh well, the only morsel of positivity that I can derive from this "Spider Web" is that <20.Qh8> was a candidate move. |
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| Aug-19-12 | | Patriot: I'm not so sure on this one. The black queen is undefended and the black king is in a stalemate position so perhaps either Bxe6 or Rxe6+. 20.Bxe6 fxe6 and I'm not sure what else.
20.Rxe6+ fxe6 21.Re1 seems much stronger. I'm not sure how black deals with this. After 21...e5 22.f4 is very strong. On 20...Rxe6 21.Bxe6 fxe6 22.Re1 is similar. |
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Aug-19-12
 | | paulalbert: Like others, I looked at most of the candidate moves but could not find anything that seemed to accomplish anything. I looked briefly at 20 Qh8, but never thought of combining it with 21 Be7. After seeing the solution, I asked myself: What about 21... e5 as a defense instead of taking Nxb3, idea to bring back black N to e6 to protect f8 square. 22 Bf6 threatening Ng7ch winning the exchange as a refutation, cited previously as a Rybka find, is not easy to see. This puzzle deserves its insane ranking. I am old enough to be familiar with the name Kupreichik, although I never remember seeing this game. Like many players who never quite make it to the pinnacle of the super elite, as this game shows, he was capable of brilliant play. |
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| Aug-19-12 | | Patriot: I considered 20.Qh8 but couldn't see how that works. A lot was unclear about this. |
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| Aug-19-12 | | jancotianno: <TomOhio> lol i must have a bit of the devil in me cos i managed to spot it although i did look at the whole thing for over 30 mins trying to calculate it all but i got there in the end. |
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| Aug-19-12 | | jancotianno: <dumbgai> i did the same thing but all of a sudden Be7 occured to me, i believe the idea of getting the knight to g7 works in some lines though. |
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| Aug-19-12 | | LoveThatJoker: GM Kupreichik!
The best I can find is <20. Re3>. Two lines that seem interesting are
A) 20...Bb7 21. Rde1 e5 (for example) 22. f4 and White has a decent attack going and has practically invested no material for it. B) 20...Rc7 (say) 21. Nxd6+ Bxd6 22. Qxd6 Qxd6 23. Rxd6 and White is better. LTJ |
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| Aug-19-12 | | LoveThatJoker: 20. Qh8!
I considered it, but didn't see the proper follow-up, so this is where my streak ends. I can take some consolation in that Stockfish confirms that 20. Re3 is a decent move. At a depth of 21, as I write this, it is saying that White gets a <  > advantage. This said, 20. Re3 is still inferior to the one and only outright winning move - GM Kupreichik's 20th. So, my streak ends at 27 straight-correct solves.
LTJ |
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Aug-19-12
 | | chrisowen: I dont see the point of 17.bh4 hirsute a mammoth hairball qb6 in a pickle does it allow in knightf5 at iron in e1 castle exploit ok in be7 then o i reckon it erstwhile in qh8 victory in lights out black again method too stodgy this Kupreichik gob engage ala all his pieces to flush in effect it he in just again high-hope what a joke in c5. |
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Aug-19-12
| | chrisowen: A body to rights everything focused on key e7 safe e6 dominate hinder it d7 i think rookg6 in either it escry arrow rookd7 in escapes tell a full bishop thrust e7 pump in blocking I see 20.Qh8 as brother it Nxb3 in 21.be7 the woods clearing Rxe7 I Nxd6+ in wall it recapture bobbing for apple sam see qxd7 rxd6 and i lions-share in bid for qh8 it hoof in b3 ar be7 tie him up in knots again. |
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Aug-19-12
 | | Jimfromprovidence: I’ve reviwed the puzzle a second time and all I can say is “it’s complicated”. Beside the text 20 Qh8 Nxb3 21 Be7!, one must analyze the responses 20…d5 and 20…e5. These two moves do not make 21 Be7 feasible because black now protects the key d6 square from 22 Nxd6+. Nevertheless, white is still winning. To answer 20…e5, white has 21 Bg6!, threatening 21 Ng7+. Black has to concede the exchange to avoid that possibility.
click for larger viewAfter 20…d5, 21 Bxd5 looks the most straightforward. I’m not sure what black should play here but I believe white can retreat the bishop and reinstitute the Be7 threat since the d pawn is now out of the way. For example if 21…Na4, then 22 Bb3 and the original threat reappears.
click for larger view |
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| Aug-19-12 | | whiteshark: <lost in space: Too high for my small brain. Be7 never came to my mind.> And thus we come back down to earth with a bang. :D |
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| Aug-19-12 | | Pedro Fernandez: <lost in space: Too high for my small brain. Be7 never came to my mind.>You haven't a little brain at all my friend, it's happens Kupreichik saw to Anderssen in this game. |
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| Aug-19-12 | | agb2002: White is a pawn down.
The black knight is pinned which makes the e6 square weaker. However, any sacrifice on e6 seems to go nowhere. Another weak spot is d6, which suggests 20.Bg3, but after 20... e5 21.Bxe5 dxe5 22.Qxe5+ Re6 (22... Ne6 23.Ba4) 23.Bxe6 fxe6 White doesn't seem to have made much progress. A better option appears to be 20.Qh8 with a number of threats (Be7, Bf6-Bg7, Qxh7-Bxe6, etc.). For example, 20... a5 21.Be7 Rxe7 22.Nxd6+ winning the queen (after capturing the white knight or after a discovered check). I'm afraid is a bit late and my head refuses to work. |
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| Aug-19-12 | | LucB: <LTJ>
<So, my streak ends at 27 straight-correct solves.> Wow, that's a heck of a lot more than my record!
:oD |
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| Aug-19-12 | | LoveThatJoker: <LucB> This is my personal best, man! I have a magic number. I hope to make that one someday. :) LTJ |
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| Aug-19-12 | | erniecohen: <sevenseaman:Please write your winning combination after this; <20. Qh8 d5 21. Rxd5 Rxd5 22. Bxd5 Qb4>
Or try this Crafty link for clarity.>
Against Crafty, I continued 23. ♗c6+ ♘d7 24. ♗e7 ♕xe7 25. ♘xe7 ♔xe7 26. ♕c3 ♖g5 27. ♖d1 a5 28. f4 ♖f5 29. g4 ♖xf4 30. ♗xd7 ♗xd7 31. ♕c7 ♗h6 32. g5 ♗xg5 33. ♖xd7+ ♔f6 34. ♖xf7+ ♔g6 35. ♖xf4 ♗xf4 36. ♕xf4 and white is up a ♕. |
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| Aug-19-12 | | nariga: How does this look? I cannot see any clear overwhelming moves for white. 20. Qh8 f6? |
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| Aug-19-12 | | sevenseaman: Thanks Ernie. That's quite promising now.
I hope you do not mind the hard work I put on your plate. Its much better than glossing over a hollow Kupreichik win. |
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| Aug-19-12 | | erniecohen: <nariga: How does this look? I cannot see any clear overwhelming moves for white.
20. Qh8 f6?>
21. ♗xe6 is pretty overwhelming, e.g. 21...♘xe6 22. ♖xe6+ ♔d8 23. ♕xf8+ ♔c7 24. ♘xd6 and slaughter ensues. |
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| Aug-19-12 | | erniecohen: <sevenseaman: Thanks Ernie. That's quite promising now. I hope you do not mind the hard work I put on your plate. Its much better than glossing over a hollow Kupreichik win.> No problem, that's why we're here. |
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