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| Oct-17-11 | | zb2cr: Hi <Once>:
You wrote: "...Shame about the Re3, though."
That's what bulletproof vests are for. |
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Oct-17-11
 | | Phony Benoni: <sevenseaman> In the course of a long and misspent life, I've learned that a joke which needs to be explained isn't worth explaining. Of course, that never stopped me from trying. <Bristol> is a term used in chess problems to describe a clearance theme in which one piece moves along a line to allow another to come in behind it on the same line and deliver mate. <Once> described the mechanism perfectly. Here's the original problem by Healey, a <Mate in 3>: 
click for larger viewWhite mates with the maneuver 1.Rh1, 2.Qb1, 3.Qg1.
As for "Bristol Stomp", well, there was this song from the 1960s. http://www.youtube.com/watch?v=pXIW...
I told you it's been a long and misspent life. |
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| Oct-17-11 | | zealouspawn: Seven... its a good thing we invented 5 days in between Monday and Sunday :) |
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| Oct-17-11 | | beenthere240: I think that the joke in this puzzle is that many such sacs keep occuring on the same square (e8 in this case). Here the queen has to pull up one square short. |
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| Oct-17-11 | | Nullifidian: I saw this one immediately (36. ♖e8+ ♗xe8 37. ♕e7#), so I felt no compunction about looking at how the entire game went before commenting. Like many people, I was curious about how Black got himself into such a fix. The turning point of the game seems to have been the 'failure' of 23... ♕h4. It looks to me like Katte just lost his nerve after that, because the moves just get worse and worse. But the reason I put "failure" in scare quotes is that 23... ♕h4 is actually a *really* good move with the right continuation. After 24. ♕f2, Black should have continued with 24... ♖xg3+!. White has several moves, and I'll list them from worst to best: 25. ♙hxg3?? ♕h1#
25. ♕g2?? ♖xg2+ 26. ♔xg2 (♔h1 or ♔f1 is mate in 1) ♕xh2+ 27. ♔f1▢ ♙e3 with mate on the next move. 25. ♔h1? ♙e3 26. ♕xg3 ♕xg3 27. ♗h5 ♖xh5 28. ♖c2
25. ♔f1 ♕h3+ 26. ♔e1 ♖g2 27. ♗f1 ♖xf2 28. ♗xh3 ♖xf4 29. ♘e2 ♖fh4 30. ♗f1  25. ♕xg3 ♖g6 26. ♕xg6 ♙hxg6 27. ♖f1 ♙g5 28. ♙fxg5 ♕xg5+ 29. ♔h1  <rilkefan: 34.Re8+ Kf7 35.Rf8+ Kg6 36.Qxg4+ fxg4 37.Bc2+ Kh5 38.Re5+ g5 39.Rxg5# looks nearly forcing, but I don't see what to do about 37...Bf5.> 38. ♖e6+ ♔h5▢ (the bishop is pinned) 39. ♖xf5+ ♙g5 40. ♖xg5# |
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| Oct-17-11 | | ComboKal: Did Gnirk miss a forced mate earlier with 34.Re8+? I think I've played out all possible options, but I may have missed something. |
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| Oct-17-11 | | JustAFish: An easy puzzle. However, when defending a position like this (but not exactly this), sometimes it's hard to see moves where the queen doesn't go as far as it can go, but stops one square short. When visualizing this sort of thing several moves in the future, I might dismiss the danger, since the eighth rank seems protected, neglecting the fact that the queen doesn't have to go all the way to the eighth rank. |
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| Oct-17-11 | | kevin86: Since the e8 square is thrice guarded,the direct approach don't work-but the queen can mate at e7,if the rook gets his butt out of the way-therefore:the rook sac at e8 and then the queen mate. |
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| Oct-17-11 | | dufferps: I really couldn't understand black's move 33. ... Rg4. I am too much of a material grabber, and I would have grabbed the bishop with 33. ... Qxb3.
Of course, that would be followed by
34.Nxb5 Qxd5 35.Nxa7 - pretty much an even exchange of material. I don't think it would change the final result, but it seems an improvement of black's situation. Black queen can now get to a8 to defend the back rank, and in more general terms, a7 is not a traditionally strong position for the white knight. |
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| Oct-17-11 | | cydmd: <dufferps>, watch out your hunger!! 33... Qxb3 34.Re8+!
34... Kf7 35.Qe7# or 34... Bxe8 35.Qxe8# |
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| Oct-17-11 | | jackalope: <Phony Benoni> - I'm not sure of the intervening Black moves after Qb1 but if Black's bishop is not on b5 then Qb4# else Qg1#. I could only find the 4-move mate. Black's bishop must stay on the b5-e8 diagonal to prevent Qc6#. <1. Rb1 Bc6/e8 2. Rxf4 Bb5/e8 3. if bishop is on b5 Rxc4+ Bxc4 4. Qc6# else if bishop is not on b5 3. Rxc4#> I need to learn to think outside the box - the solution is elegant. |
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| Oct-17-11 | | jackalope: Typo <Phony Benoni> - I meant "intervening moves after Rh1" |
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| Oct-17-11 | | rilkefan: Thanks for the help with my 34.Re8+ line above - I should have seen Re6+, though white didn't either (though perhaps just due to time pressure). |
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| Oct-17-11 | | abuzic: <gofer: I am trying to find a quick win after <35 ... Qc8>, but I cannot find anything specatular. The following is okay (I like the queen sac), but not fabulous
<35 ... Qc8>
<36 Re7 Rf6>
<37 Qe5 cxd6>
<38 Qxf6+! gxf6>
<39 Rf7+ Kg8>
<40 Rxd7+ Kh8>
<41 Ree7 ...>
... ...any one find anything nicer?!...>
A very nice theme, leading to quick mate after 37...cxd6 38.Qd5 which forces mate: 35...Qc8 36.Re7 Rf6 37.Qe5 cxd6 38.Qd5 Be6 39.R(any)xe6 Rxe6 40.Rxe6 g6 41.Rxg6 Qd7 42.Rxg4 fxg4 43.cxd6 Qe6 <(or 43...Qg7 44.Qa8+ Nc8 45.Qxc8#; 43...Kg7 44.Qe5+ Kf8 45.Qh8#)> 44.Qxe6 Kg7 45.Qxg4+ Kh6 46.Qg5#. The Q sac leads to quick mate after
35...Qc8 36.Re7 Rf6 37.Qe5 c6 38.Qxf6+ <(38.Nc3 mates one move faster, variation below)> 38...gxf6 39.Rf7+ Kg8 40.Rxd7+ Kh8 41.Ree7 Qxd7 42.Rxd7 Rg8 43.Bxb8 Kxg8 44.Rxa7 Kf8 45.Re7 h6 46.Nc1 h5 47.h4 Kg8 48.d7 Kf8 49.d8Q# 35...Qc8 36.Re7 Rf6 37.Qe5 c6 38.Nc3 Rgg6 39.Nd5 cxd5 40.Qxd5 Be6 41.R1xe6 Rxe6 42.Qxf5+ Rgf6 43.Qxh7 Re1+ 44.Rxe1 Re6 45.Bxe6 Qxe6 46.Rxe6 Nc6 47.Qf5+ Kg8 48.Re8# |
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| Oct-17-11 | | sevenseaman: <<morfishine> <Boink, Boink>
<36.Re8+ Bxe8 37.Qe7 mate>> I scoured the internet for <Boink, Boink>. Did you mean this? http://www.youtube.com/watch?v=eiuH... |
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| Oct-17-11 | | MaczynskiPratten: On <PhonyBenoni>'s puzzle I was initially puzzled too. I think the point is that after 1 Rh1 Black has to move the b5 Bishop as his only other legal moves are with the Nb7 which allows 2 Qd6#. Then 2 Qb1 works because it is now defending the b6 Knight. Qb4# is threatened, hence Black must play Bishop back to b5, blocking his exit square so now 3 Qg1#. Rather attractive! |
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| Oct-17-11 | | Once: In English cockernee rhyming slang, a bristol refers to that particular part of the female anatomy that is so prominent in <sevenseaman>'s youtube clip. As in Bristol city, t*****. aka shirt potatoes, ladylumps, funbags, love pillows. As in "I say, yonder damsel is sporting a fine brace of bristols". Not sure what it's got to do with chess, mind. And highly politically incorrect. |
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| Oct-17-11 | | morfishine: <sevenseaman> I thoroughly enjoyed that video! I feel years younger and now I have a new 'Diva' to follow! Britney and Pink can now take a back seat. Sabrina rules! 'Boink, Boink' is not near as colorful as your video: Its just my spin off the ole one-two punch. 1-2, and its all over. |
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| Oct-17-11 | | sevenseaman: <MaczynskiPratten> Your comments/expansion on <Healey>'s puzzle posted by <Phony Benoni> are timely and educative. I had cursorily looked at the problem w/o realizing Black was so starved of legal moves that he <had to> submit to the mate by White's Q from g1. The puzzle looks even more fun now.
<morfishine> Your <Boink, Boink> did it for me; but what infallible serendipity led me to <Sabrina>'s <Boys Boys Boys> will remain a mystery even to me. <Once> Hopefully we chess patzers are nonpolitical parrots, but thanks for enlarging our perspective. Here's limerick for those who wrangle for political equality; There was a lady at the 'Assizes'
She had breasts of different sizes.
One was so small
That it was nothing at all;
The other was large and won prizes. |
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Oct-17-11
 | | chrisowen: Alekhines gun it brings a me to my knees every time i see. 36 Re8+ one for the money bxe8 too for the show qe7# shot down in one go |
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| Oct-17-11 | | sevenseaman: Cheers <chrisowen>. You not only solved a puzzle but also told us how. |
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| Oct-17-11 | | cdbloch: ComboKal: Yes, it appears Gnirk did miss a forced mate earlier with 34.Re8+. |
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| Oct-17-11 | | cdbloch: SamuelS: IF
34. Re8+ Kf7, then 35. Re7+, Kg6, 36. Qe5. If the king goes to the back rank instead of Kg6, then just take the bishop. |
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| Oct-17-11 | | fmv2611: No mention of 36. Bd5? |
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| Oct-17-11 | | stst: Two heavy pieces guarding e8, so brute force (by Re8+) won't work.
36.Bd5 (harass the Q) what'd she do?
IF (A)36... Qxd5, 37.Re8+ Kf7, 38.Qe7+ Kg6, 39.Qg5 Kf7, 40.R(1)e7#
IF (B)36...Qa6, 37.Re8+ and repeats similar fate. |
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Kibitzing
sac: 36.Re8+