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| Feb-11-05 |
| BipolarChessorder: how does white win after 129...Rh7 (to interpose the rook at a7 if 130. Ra5+). then if 130.Kb6 then 130...Ra6+ driving the king back.
Anybody? |
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| Feb-11-05 |
| BipolarChessorder: sorry, I meant 130...Rh6+ in the previous post |
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| Feb-11-05 |
| unclewalter: that's a sexy diagonal... |
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Feb-11-05
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| jahhaj: <Bipolar> White wins by (with a little computer help) 130  c7  h6+ 131 d6 h7 132 e5 and Black can't answer the threat e8+ c5+ a8#. |
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Feb-11-05
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| Honza Cervenka: <is 131...Rg1 a blunder?> Yes, but black was lost. Only the defence could have been a little bit longer and the win much tougher. Let's see its alternatives 1) 131...Rf1 (also not very good) 132.Rd5 Rf8 133.Ra5+ Kb8 134.Be5+ Kc8 135.Ra8 and 136.Rxf8  2) 131...Rh1 132.Rg5! Rh6+ 133.Kc7 Ra6 (133...Rh7+ 134.Bg7 ) 134.Bd4 3) 131...Rd1 is not a defence against 132.Kc7 (like 131...Rg1) 4)131...Re1!? was analysed by <patzer2> in previuos comment. 5) 131...Kb8!? (it is quite good attempt but still insufficient if white plays precisely) 132.Kc6+ Kc8 (132...Ka8? or 132...Ka7? 133.Ra5+ Kb8 134.Be5+ Kc8 135.Ra8+ with a mate in next move) 133.Re5 Kd8 [133...Kb8? 134.Re8+ Ka7 135.Bd4+ with mate; 133...Rd8 134.Ra5 Kd8 (134...Kb8? 135.Be5+ ) 135.Ba3! Ke8 136.Rf5! ] 134.Bd4! (threatening 135.Bb6+ Kc8 136.Re8#) 134...Rc1 135.Bc5 Rc2 136.Re1! Rc4 (136...Rc3 is bad as the Rook cannot go to the e-file after 137.Rf1) 137.Rd1+! Ke8 (or 137...Kc8 138.Rf1 ) 138.Rf1 and against 139.Rf8# is no reasonable defence. |
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| Feb-11-05 |
| dpaleo: The game was a draw until move 115. ..., Ka5?. At this point the only three moves to lose (endgame tablebases speaking, not me :) were: Rh6, Rxe3+ and Ka5, all the rest were a draw. With Ka5, the computer announces mate (with black best play) in 40!!! moves. Nice game and nice puzzle today. BTW: Hello to everybody, I'm a new user here |
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| Feb-11-05 |
| 2ndNature: The same here <KKK> - but later, following the game, I've found winning moves... Guess, it wouldn't count however :(
2ndNature |
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| Feb-11-05 |
| 2ndNature: I don't understand Black on 87...Rd4 - having a pawn on a white square and no prospects of winning, he allowed the pawn to be captured?! Maybe the position after 97.Kxf4 is still drawish but without this pawn, surely it's much harder. Do you think that he *really* wanted to win? 2ndNature |
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| Feb-11-05 |
| misantrooppi: <BipolarChessorder> I thought of this too, and came up with h6+ 130.d6 threatening a5, when 130 .. h7 131. e5 wins with either a5+ or e8+. |
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Feb-11-05
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| cu8sfan: Thanks, <patzer2> and <Honza Cervenka> for your extensive analysis! |
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| Feb-11-05 |
| karlzen: <dpaleo>, Hi there! Welcome to the boards! :) Speaking of a theoretical draw, here's an amazing twist: I think you will find that black only comitted one decisive error in this endgame, namely 128...Rh1??. The table bases can only show whether or not a certain position is won or not, they forget about the moves already played! The fifty-moves rule rules out any theoretical win for white even after 115...Ka5. So, while Ka5 "should" be losing, it isn't! <2ndNature>, Theoretically speaking, R+B vs. R is a draw unless black commits an error and finds himself in the same situation Burgess did after 128...Rh1. I don't think black wanted to win, that would just be ridiculous, I'm sure he just wanted to get that pawn off the board - it disoriented him! ;) |
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| Feb-11-05 |
| TigerPawns: What's wrong with 51 RxR? It leads to an extra pawn and a superior bishop, what does the theory say about that? Instead white opts for a contiued maze of tactics. |
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| Feb-11-05 |
| MindlessOne: <passed pawn>
I checked out that site on longest games thanks. I did happen to notice something pretty interesting. None of the games in the list were won by black! I wonder the what the longest game won by black is, anyone have any idea |
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Feb-11-05
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| aragorn69: Thx <Honza>. As usual you covered the whole field and answered all my (unformulated) questions ! |
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| Feb-11-05 |
| Reegan Milne: thanks chessgames for putting end games puzzles up, the discussion generated by the opening traps where no where near as interesting or thought prevoking eg. he's main mistake was 1.d4 |
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Feb-11-05
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| RonB52734: <MindlessOne> In the chessgames.com database, the longest game won by black is Short vs Salov, 1990 at 162 moves |
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| Feb-11-05 |
| dpaleo: You're right, karlzen, I missed the 50 moves rule. |
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| Feb-11-05 |
| WillC21: <chessgames.com> This is an interesting puzzle, but is the line given in the game optimal defense by black? I agree, black is lost, but I think the forcing variation for white is longer and more detailed than the solution given. |
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| Feb-11-05 |
| karlzen: <TigerPawns>, on 51.Rxh5 gxh5 white can't win. Black will play something like Kg6, f5 and white's only try is g2-g4 but that leaves white with only one pawn and bishop versus knight. Black's king simply gets to a light square and blocks white's remaining pawn, a simple draw. |
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Feb-11-05
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| kevin86: Rook + Bishop vs Rook is drawn in theory-In practice it is hard to either force a win or draw.The fifty move burden points to a draw,as it is often unclear whether the weaker king be forced to the corner.Even in an advantageous position as this,it is not easy. |
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| Feb-11-05 |
| yoozum: Ahh, I thought I had solved it until I noticed that my variation led to a stalemate. |
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| Feb-11-05 |
| dac1990: Ha, got this one! |
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| Feb-11-05 |
| CeeFoR: the bishop on b2 is so well placed, gotta love being able to avoid both checks, and mating in one |
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| Aug-16-06 |
| tTinker: That's too bad. I'm sure Carllson did that ending all by memory of course. |
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| Aug-16-06 |
| tTinker: In the book 2010 chess odyessy or a book like that, they showed that ending can't win and what the board looks like after trying after many many moves. |
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