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Jul-28-04
 | | Sneaky: Today's puzzle is: "find a move that DOESN'T win for Black." |
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| Jul-28-04 | | admiralnemo: right on sneaky :) |
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| Jul-28-04 | | EXIDE: 36 ..., Ra3 I think wins.
if, 37. Qf1,Qf3 38. Kg1,Ra1 wins(if 38.QxQ,Ra1+ and checkmate follows)
If,37.Qf2,Qf3 38.QxQ,Ra1+ wins.
If, 37.QxQ,Ra1+ wins |
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| Jul-28-04 | | mikhs: <williscreek> 36...Qxh2 37.Kxh2 and there is no mate. Black's down a Queen |
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| Jul-28-04 | | mikhs: <ConLaMismaMano> 36...Rf2 37.Qxf2 Qd1+ 38.Qg1 and black is down a rook |
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| Jul-28-04 | | trguitar: My version of Crafty gives 36. ... Bd3!! as the best continuation. For example: 36. ... Bd3 37. Rg5 Qh3 38. Rg8+ Kxg8 39. Qg2+ Qxg2+ 40. Kxg2 Be4 41. Kg1 Bf5 42. h4 Kh7 43. Kg2 Be4 44. Kg1 Rd3 45. Bg5 Rxd4 |
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| Jul-28-04 | | trguitar: 36. ... Rh3?? does not win for black. It actually gives white the advantage!! 37. Qxh5 Rxh5 38. e6 Bxg2+ 39. Kxg2 Rh4 40. e7 Re4 41. Bg5 Kh7 42. h4 b4 43. h5 c3 44. bxc3 bxc3 45. Kf3 |
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| Jul-28-04 | | Helloween: <EXIDE>36...Ra3? does not by any stretch of the imagination orchestrate a win: 37.Kg1 Ra1+ 38.Be1 Qxh6 39.Rg4 with the idea of Qf2 and Rh4 leaves Black with nothing better than a draw after 39...Bf3 40.Qxf3 Rxe1+ 41.Kg2!(saving the f2 square for the Queen)41...Qd2+(not 41...Rb1?? 42.Qf2 and Black has to lose the Rook to keep his Queen on the board)42.Kh3 Re3 43.Rh4+ with perpetual check. |
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| Jul-28-04 | | trguitar: 36. ... Qh3? also gives away the promising attack, although not as bad as Rh3?? Crafty's evaluation at depth 15 is -0.69 in black's favor. 37. Kg1 Bd3 38. Qe1 Qf5 39. Rf2 Qg4+ 40. Rg2 Qxd4+ 41. Rf2 Rf5 42. e6 Re5 43. Qa1 Kh7 44. Qa6 Qxb2 |
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| Jul-28-04 | | kevin86: I blew this one-I tried Qa3 and Qxh2+ both,failures. The problem has more than one answer but it doesn't have many. |
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| Jul-28-04 | | notyetagm: I analyzed this <completely correctly> but then I missed the fact that at the end of the combination Black needs to be <extremely careful> in stopping the advance of the White d and e pawns. So far, 3 for 3 this week.
:-) |
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| Jul-28-04 | | admiralnemo: I am no match for crafty. |
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| Jul-28-04 | | ChessTeacher: It appears that trguitar is correct about Rh3?? But, White would need to consider Black using 39...Kg8 to stop the e-pawn charge. I believe Black would lose after 39...Kg8; 40. Kg3, Kf8; 42. h4, Ke7; 43. Kg4, Rxh6; 44. Bxh6, Kxe6; 45. h5, c4; 46. Bd2, b3; 47. h6, Kf7; 48. Kg5, Kg8; 49. Kg6, Kh8; 50. Bg5, c3; 51. Bf6+, Kg8; 52. h7+, Kf8; then the h-pawn can promote and mate. To further trguitar's line, 45...Re6; 46. Kf4, c2; 47. Kf5, Re1; 48. Kf6, Re2; 49. Kf7, Re1; 50. e8=Q, Rxe8; 51. Kxe8, Kg8 and then the White king can take the blocked d-pawn and promote either the d and/or h-pawns. Rh3 does appear tempting to win the exchange. Unfortunately, it dwindles Black's material and then White's three passed pawns become supreme. This puzzle was a position that certainly merited plenty of time off the clock before you actually made your move. The Bd3 suggestion and the actual move made really need time for verification. |
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| Jul-28-04 | | patzer2: I was able to visualize the position up through 36...Rg3! Qxh5 and 37. Rxh2. However, trying to figure out the possibilities after that was a bit tricky. In a game situation, I would have played it, knowling the Queen had no escape from the discovered check attack and Black would be up at least an exchange. However, I did not see the possibility 38. Qf5!? which gives White a trio of passed pawns for Black to be concerned with. In any event <chessgames.com>, thanks for a great puzzle combining elements of both sharp middlegame tactics and endgame strategy. |
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| Jul-28-04 | | rclb: 36...Rf5 Kg1 Bf3 also wins for black, but not so easily. |
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| Jul-28-04 | | admiralnemo: One of the problems with solving puzzles, for me at least, is that I'm not playing the game. Over the board, if I had gotten myself into this position as black through 35 moves, 36...Bd3 would seem to be a very obvious and good, and, ultimately, winning move. However, when I just see the position and am asked to find a solution to the puzzle, my thoughts stray towards any number of crazy solutions... |
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| Jul-28-04 | | ezumpf: I had 36....Qg4. Looks good to me. Any thoughts chess monsters? |
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| Jul-28-04 | | patzer2: <ezumpf> If 36...Qg4, then 37. Kg1. And now What does Black play? Your suggestion and others probably still win, but it seems to me 36...Rg3!! immediately takes care of this little possibility with zero counterplay for White. |
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| Jul-29-04 | | nikolaas: <patzer2> I stay on my opinion that Ra3 might do the job as well. |
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| Jul-29-04 | | patzer2: <nikolaas> Haven't looked at 36... Ra3!? until now, but at a glance it looks interesting. Obviously failing to defend are 36...Ra3 37. Qxh5?? Ra1+ and 36...Ra3 37. bxa3?? Qxe2. However, 36...Ra3 37. Kg1!? Ra1+ 38. Be1 seems to offer White counter-chances. So, I prefer the clarity and sure advantage of 36...Rg3! |
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| Jul-29-04 | | ChessTeacher: Nikolaas, 36...Ra3 can lose to 37. Qf2 to threaten mate (Qf8 & Qg7#), Qf3 to block it; 38. h4, Ra1+; 39. Kh2, Qxg2+; 40. Qxg2, Bxg2; 41. Kxg2, Ra2; 42. Bg5, Rxb2+; 43. Kf3, c3; 44. e6, c2; 45. e7, c1=Q; 46. e8=Q+, Kh7; 47. Qf7+, Kh8; 48. Bf6# is mate. Play could go a little different, but I think this shows that not only could White wiggle out of the fix, White could still win. |
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| Jul-29-04 | | nikolaas: <ChessTeacher> I might be wrong, but it seems to me that 38.h4 fails to QxQ. <Patzer2> 37.Kg1 is hard to beat though I think 37....Ra1+ might do the trick. 38.Be1 Qh4 Please correct me if I'm wrong. |
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| Jul-29-04 | | ChessTeacher: Nikolaas, That bishop is annoying pin. You are correct about QxQ. Even if you insert 38. Qxf3, Ra1+ (and not Bxf3); 39. Rg1, Bxf3#. But, Patzer2 maybe onto a defense. Extending your line, 37. Kg1, Ra1+; 38. Be1, Qh4; 39. Rg3, Qxh6; 40. Qf2 and White has rebuilt the castle with pieces and threatens Qf6+. The position seems unclear, but in White's favor. |
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| Jul-29-04 | | patzer2: When I was attending college, we discussed a term called "cognitive dissonance." I don't remember the exact definition, but it involves rationalizing to try and defend a weak or marginal decision. For example, you buy a car that is a lemon (constantly breaking down and needing repairs), but rationalize and try to justify that you actually have bought a good car. Sometimes, I suspect I do the same in Chess. I play a less than best line, but try and rationalize or work really hard on analyzing this inferior line and trying to force a win rather than dropping it and concentrating on the stronger line. As I get older, it's a habit I'm trying to get away from. So, please forgive me if I try not to look too hard at secondary lines when there is a clearly stronger alternative available. |
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| Jul-29-04 | | nikolaas: <ChessTeacher> Why do you always capture on h6? :-) Maybe this is a better line: 37.Kg1 Ra1+ 38.Be1 Qh4 39.Rg3 Qf4. The threat is Bd3. At this moment I don't see a way to parry this, but your eyes might be better. |
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Kibitzing
sac: 36...Rg3