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Sep-15-06
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| dalbertz: Doesn't the windmill created by 1. Bb7+ Kh2 2. Rg2+ work? Not as efficient as the solution, but I think it avoids the perpetual check. |
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Sep-15-06
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| dalbertz: i.e. 1 Bb7+ Kh2 2. Rg2+ Kh1 3. Rg1+ Kh2 4. Qg2# |
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| Sep-15-06 |
| think: <dalbertz> The black rook is pinned and cannot move. |
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| Sep-15-06 |
| rookattack: Its interesting that an undeveloped bishop plays a critical role in mate |
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Sep-15-06
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| RandomVisitor: After 21.Nf5 Black loses in every line:
1: Nogueiras Jesus (CUB) - Tarjan James E (USA), Bogota (Colombia) 1979
click for larger viewAnalysis by Rybka 2.1c mp:
1.  (2.87): 21...Bb7 22.Bxf7+ Kh8 23.Re1 a5 24.Bxf6+ Nxf6 25.Ned4 Qg4 26.h3 Qg5 27.Ne6 Qxg2+ 28.Qxg2 2. (2.87): 21...a5 22.Bxf7+ Kh8 23.Qf2 Bb7 24.Qg3 Qxg2+ 25.Qxg2 Bxg2 26.Kxg2 Bxd4 27.Nexd4 b4 28.Re1 3. (2.87): 21...Bxd4+ 22.Nexd4 Kh8 23.Bxf7 Nf6 24.Re1 Qg4 25.h3 Qg5 26.Nd6 Bxh3 27.Be6 Qxg2+ 28.Qxg2 4. (2.87): 21...Kh8 22.Bxf7 Be5 23.c3 Nf6 24.Neg3 Bxd4+ 25.cxd4 Qg4 26.Rc1 Bd7 27.d5 Ne4 28.Ne3 5. (2.90): 21...Nc6 22.Bxf7+ Kf8 23.Bc3 Nce5 24.Bb3 Nc5 25.Neg3 Qc6 26.Bxe5 Nxb3 27.Bd6+ Kf7 28.cxb3 6. (3.38): 21...Qc6 22.Ne7+ Kg7 23.Bxf7 Qe4 24.Nf5+ Kh8 25.Rd1 Nc6 26.Re1 h6 27.Bxf6+ Nxf6 28.Ned4 (, 15.09.2006)
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Sep-15-06
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| awfulhangover: Wow, black is beating Jesus in chess! |
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| Sep-15-06 |
| Castle In The Sky: I had 35... e6 with the idea of 36... a8+ does this go anywhere? |
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| Sep-15-06 |
| zb2cr: Missed it, rats. I'm with the 35. ... Bb7+ crowd. |
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Sep-15-06
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| jahhaj: <Castle In The Sky> That was my first thought but after 35...Be6 36.Rg1 Black doesn't have anything. |
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Sep-15-06
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| kevin86: This is one of the rare cases where a threat of mate in two is better than a threat of mate in one. The real problem is that Bb7+ Kh2 Qg2# is impossible because a dead elephant is in the way-the d.e. being the pinned rook at g7-lol |
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| Sep-15-06 |
| brainzugzwang: Oh lord, I got a Friday puzzle (I think))! I also went in for 35... Qf7 instead of ...Qf8, thinking it was better for the Q to maintain access to the a8-h1 diagonal. From what I've seen this far, no one has refuted ...Qf7. |
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| Sep-15-06 |
| Sasquatch777: Why couldn't white capture black's queen on move 24? |
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Sep-15-06
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| Phony Benoni: <Sasquatch777> If White takes the queen on move 24, Black has 24...Nxh5, with rook and two pieces for the queen. White must have felt that the game continuation, which left him a piece down but with a more active queen, offered better chances. What I can't figure out comes after 35...Qf7; can White play 36.Qb8? |
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Sep-15-06
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| jahhaj: <Phony Benoni> 35...Qf7 36.Qb8 Qd5+ wins |
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Sep-15-06
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| Phony Benoni: <jahhaj> Good enough. I'll be quiet now. |
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Sep-15-06
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| moonrain: Dear Billosky, pinning does not stop any other rule. But even if would and 36. Kg1 36 ... Kg8+, right? |
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| Sep-15-06 |
| trumbull0042: <siilarsi: <trumbull0042: ... Were the players on drugs or something?>
Did you ask that because the game was played in Columbia?> Of course not! |
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| Sep-15-06 |
| worktobedestroyed: I think 19 Bxf7+ is winning, no?
19. Bxf7+ Qxf7 20. Qg4
seems pretty good for white. What have I overlooked? |
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| Sep-15-06 |
| avidfan: 31.Qe5+ Qg7 32.Qe8+ would be perpetual check.
*** *** ***
The only way to stop immediate mate was 39.Nf5 but 39...Qxf5 40.Qxf5 Bxf5 and Black would win the endgame with an extra bishop. |
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Sep-15-06
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| GoldenKnight: <WarrenHam: Tarjan is the brother of the famous computer scientist Bob Tarjan.> Thanks for this piece of information! I remember James Tarjan when he was a chess boy wonder back in the sixties. I was at the International Congress of Mathematicians in 1986 (held in Berkeley, CA that year) when Robert Tarjan won the Fields Medal. At first I wondered if they were the same person, then when I realized that their first names were different, I was disappointed and thought they were probably not even related -- until your post! Thanks again. |
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Sep-16-06
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| dzechiel: I picked 35...Qf7. Does that work as well? |
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Sep-16-06
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| RandomVisitor: <dzechiel>yes. |
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Sep-20-06
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| patzer2: White misses an easy win with <RV>'s 21. Nf5! and suffers defeat after 35...Qf8! (even stronger is <dzechiel>'s 35...Qf7!) as he cannot stop the attack on his exposed and helpless King. |
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Sep-20-06
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| patzer2: White should have tried <RV>'s 35. Qf6!? However, after 35. Qf6!? Bb7+ 36. Nf3 Qf7! 37. Qd8+ Rg8! 38. Qd4+ Qg7! 39. Qxg7+ Rxg7 40. Rf1 h5! 41. h3 Rg3  Black is still winning. |
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Sep-20-06
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| patzer2: White might also have held with 28. Qd6  or 31. Re1 or 34. Rf1 =. After 34. Qe5+?! (instead of 34. Rf1 =), it would appear White is busted. Following Black's reply 34...Rg7!  there does not seem to be a saving line for White (note earlier analysis indicating 35. Qf6!? fails to save White). |
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