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| Oct-02-13 | | TheaN: Wednesday 2 October 2013
<20.?>
This seems to be a completely forced road to the finish, which is unlikely for a usual wednesday. The power on the g-file will be black's downfall, whom has condemned his rooks to their starting squares with zero activity and actual blockage on the kingside. White breakes through with <20.Rxg7+ Kxg7 (Ke8 21.Qe7#) 21.Qe7+ Kg6 (Kg8 22.Rg1+ Ng4 23.Rxg4#) 22.Rg1+>. Suddenly the black king is completely exposed, very unlikely there is way out. <22....Kh5 (Kf5 23.Rg5+ Ke4 24.Re5#/f3#, Ng4 23.Rxg4+ is similar) 23.Qf7+ Kh4 24.Qxf6+ Kh3 25.Qh6# 1-0> is the longest line, but especially the variation with a f3# is nice. |
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| Oct-02-13 | | mistreaver: Wednsday. White to play. Medium/Easy. 20.?
There is probably a nice combination:
20 Rxg7+ Kxg7 (or Ke8 Qe7 is mate)
21 Qe7+ and now:
A)
21... Kg6
22 Rg1+
and a further division:
A1)
22 ... Kf5
23 Rg5+ Ke4
24 f3 is mate
A2)
22... Kh5
23 Qxf6 and both Qh6 and Qg5 is threatened: 1:0
B)
21... Kg8
22 Rg1+ is decisive.
That has to be it, but time to check and see. |
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| Oct-02-13 | | patzer2: <ray keene: What I mainly liked about this game was that the tactics flowed very naturally from the strategy> Yes indeed! This was a very well played game, leading up to the neat mating attack in today's Wednesday puzzle. I particularly was intrigued with the position after 9. g4!? I suppose GM Keene was prepared for the complications after 9...Nxe5!?, but they baffle me as well as my silicon monster. After 9. g4!?, Fritz 12 gives 9... Nxe5 10. dxe5 Bxc3+ 11. bxc3 Nxg4 12. Qa4+ Kf8 13. f3 Nh6 (diagram below)), 
click for larger viewwe get this position where it appears both sides have chances in a wild unbalanced position. P.S.: Of course White can avoid these complications after 9...Nxe5 with 10. gxf5 Nc6 = with easy equality for both sides. |
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| Oct-02-13 | | Patriot: 20.Rxg7+ Kxg7 21.Qe7+ Kg6 22.Rg1+
22...Kf5 23.Rg5+ Ke4 24.f3#
22...Kh5 23.Qf7+ Kh4 24.Qxf6+ Kh3 25.Qh6# |
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| Oct-02-13 | | pericles of athens: After Rxg7+ the position plays itself |
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Oct-02-13
 | | LIFE Master AJ: I came up with 20.RxP/g7+!, KxR▢; (All the other options are horrible.) 21.Qe7+, ("  ") when Black may as well offer his resignation. |
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Oct-02-13
| | LIFE Master AJ: Keene shows that - in his playing days - he was a frighteningly strong player. |
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Oct-02-13
| | LIFE Master AJ: I played through the game about five times. While Black may have made several moves that were inferior, there were no obvious mistakes. IF I remember, <correctly> I think Alekhine played a line similar to this ... My favorite move was the cunning (very sly) 18.♔e2!! (I think that the real purpose of this move escaped Keene's opponent completely.) |
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| Oct-02-13 | | kevin86: The rook sacrifice seemed obvious,at least to me.Mate will come soon. |
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Oct-02-13
| | LIFE Master AJ: <<Oct-02-13 pericles of athens: After Rxg7+ the position plays itself>> Too true, but would you have gotten to the position itself? (Probably not.) |
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| Oct-02-13 | | Patriot: <ray keene> Very well played! Giving up the bishop pair with 19.Bxc6! was well thought out! |
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| Oct-02-13 | | MiCrooks: Bxc6 bxc6 (only move) leads to a very uncomfortable game for Black and at the GM level probably lost. White will dominate the b file due to the Bishop's control of b8, and White will have the choice between winning one of several pawns (a,c, possibly e in some lines) and creating an unbearable position doubling Rooks on the b-file and invading the 7th. Still...better than allowing a quick mate! |
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| Oct-02-13 | | James D Flynn: Material is equal but Black’s K is exposed to attack along the g file.
20.Rxg7+ Kxg7 21.Qe7+ Kg6 22.Rg1+ Ng4(if Kf5.23.Rg5+ Ke4 24.f3#) 23.Rxg4+ Kf5 24.Rg5+ Ke4 25.f3# |
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| Oct-02-13 | | gars: <LIFE Master AJ>: you are quite right, 18)Ke2 is a very subtle and beautiful move. |
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Oct-02-13
 | | ray keene: <abdel irada> x files! hos successus alit, possunt quiae posse videntur-also from virgil. |
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| Oct-02-13 | | KingV93: Happily I got this one, great shot by White. The real question is whether I would have found it if it wasn't a puzzle. Maybe. |
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| Oct-02-13 | | dark.horse: I like the amusing -
20. Rxg7+ Kxg7
21. Qe7+ Kg6
22. Rg1+ Kf5
Then the rook corners the king like a cat chasing a mouse: 23. Rg5+ Ke4
24. Re5# |
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| Oct-02-13 | | brainzugzwang: Interestingly (I think), after noticing the White R staring down the g-file, I thought of the similar pattern from the famous game Spielmann-Tartakover (which I'd recently looked over), where Tartakover sacrificed a rook at h2 to have his queen penetrate at f2. Of course, Tartakover needed many more moves to finish things off, but the pattern from that just jumped out at me here. |
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Oct-02-13
 | | Penguincw: I believe the last time there was a Keene puzzle (Keene vs M Basman, 1963 on Sep-21), the combination was simple. This time, kind of the same. |
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Oct-02-13
 | | gawain: I saw this sooner than on a typical Wed. Black's King's position is full of holes, White's pieces are beautifully positioned, 20 Rxg7+ wins rapidly. |
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| Oct-02-13 | | Returning Native: I found the key move and the following two moves, my best performance so far. I missed Kh5, but even I should have found the right response OTB. |
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| Oct-03-13 | | pericles of athens: <LifeMaster AJ> Too true, I never would have been able to arrive at that position! (The hard work was done by Keene, and I got the easy part.) |
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Oct-03-13
| | LIFE Master AJ: <Ray Keene> Great job on winning this game ... (please see my other comments, as well). |
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Oct-03-13
| | ray keene: thanks very much! |
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Oct-04-13
| | LIFE Master AJ: Your welcome! |
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Kibitzing
sac: 20.Rxg7+