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Larry Evans vs Wolfgang Uhlmann
Amsterdam IBM (1971), Amsterdam NED, rd 8, Jul-21
King's Indian Defense: Saemisch. Bobotsov-Korchnoi-Petrosian Variation (E81)  ·  1-0



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sac: 36.Bxg5 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Feb-10-06  EmperorAtahualpa: <Saw the sac but didn't see the continuation.>

Well, <blingice>, I saw plenty of sacs, but what's the point if you don't see any continuation? :)

Feb-10-06  EmperorAtahualpa: I missed this puzzle completely by the way....was looking at 36.h4?? (ouch)
Feb-10-06  zhentil: <ganstaman> in your line 37...Qf4+ 38 Kg1 Qe3+, white plays 39 Kh1 and it's over. There's no perpetual.
Feb-10-06  ganstaman: <zhentil: in your line 37...Qf4+ 38 Kg1 Qe3+, white plays 39 Kh1 and it's over. There's no perpetual.>

Ok, very nice. So Bf6 seems to work out too, I guess. That f6 square seems kinda good for white in this position despite being attacked by the black bishop and queen :)

Premium Chessgames Member
  kevin86: This is a nice gradual attack sequence that goes by the numbers:

First:sac the bishop

Second:threaten mate with the queen

Finally:bring the rook into play,threatening mate at the same time.

Feb-10-06  buzzymind: Like some others here I thought of 36. ♕f7. Not that I didn't consider 36. ♗xg5, I liked 36. ♕f7 because it limits black's options and I've made the threat 37. ♗xg5 very real (sometimes the threat is stronger than the action). In addition, I didn't like black getting control of the f file by playing 36... ♕f2. So, the 36.♕f7 was more positional for me and a move I would likely play in a regular game. But, I do agree with the continuation (36. ♗xg5 ♕f2 37. ♕f6!). Simple enough win with the passed b-pawn once pieces are exchanged.
Feb-10-06  YouRang: I got it! I figured (sort of guessed really) that 36 Bxg5 was the key move. After 36...hxg5, I looked at 37. Qxg5 for a while, but I couldn't make it stick.

But then I (finally) considered 37. Qf7, which threatens Qh5# and also maintains pressure on g7, preventing black from moving his rook. The only trick was dealing with 37...Kh6. After a moment, I realized that 38. Re7! made an unstoppable threat of Re6 and soon mate. :)

Feb-10-06  TopaLove: 20 ... ♘xe2 was a terrible mistake. It becomes a battle of good bishop x bad bishop.
Feb-10-06  Nostalgia: <EmperorAtahualpa: I missed this puzzle completely by the way....was looking at 36.h4?? (ouch)> Don't feel bad; I was too, until I played it on a board. :) They can't all be good ideas...


Feb-10-06  doglikegroove: It must be one of the seven signs of the apocalypse; I solved a Friday, full line and all. Get your affairs in order...
Feb-10-06  Jim Bartle: Thanks for the heads up. If Kramnik and Topalov announced they've agreed to a match, we'll know the end is near.
Feb-10-06  RookFile: I was looking at 36. h4, that ...Qf2
is a terrific resource. Normally a move like that just plain wins.
Feb-10-06  Jacobb: (i AM VERY WELL AT CHESS)\\\\\\\\\\\\\\\\\\\\\\\\\
Feb-10-06  doglikegroove: <Jacobb>:

1) I agree with you totally.

2) Easy on the CAPS LOCK. It just makes <you> look bad.

3) You'd be surprised how well the "Ignore" function works. Just click on his name and hit ignore, and POOF, he never existed. Despite the cast of characters here, there's only one on my list. You can guess who it is.

Feb-10-06  psmith: My solution was 36. Qf7 with the idea of playing 37. Bg5. This wins also as others have noted.

I believe we should allow ourselves to be amused by iamverywellatchess's Engrish. Very much joyful happiness comes to us from him!

Feb-10-06  Stelling: 36. ... Qf2 was mentioned as a "better" defense but black has nothing after 37. Bf6 Qf4+
38. Kg1 Qe3
39. Kh1 Qg3
and white can choose between the bloody 40. Qxd6 or the calm but better 40. b4 followed by an elimitation in g7 and promotion of the b pawn.
Feb-10-06  Jacobb: doglikegroove- because my keyboard is older than the earth itself,the capslock has a will of its own. :)

I was in newyork a few months ago and I wen tin to check out marshalls chess club.They were having an open tournament and I made the terrible mistake of competing. I think the lowest rating I played was like 2200. It was disaster,although the people were very friendly(contrary to pop beleif about newyorkers) and the city was very nice

Feb-10-06  Jacobb: You guys should check out Man that girl is hot. and also a grandmaster. (everychess players dream) :)
Premium Chessgames Member
  Richard Taylor: I didn't bother with this one - it is fairly ovbvious White is going to break through on the King side with a sac on g5 or whatever. 35 Qf7 is also winning.
Feb-10-06  LivBlockade: I missed the Qf7 idea (on either move) so looked elsewhere and had an idea similar to <JustAFish> who suggested Rd7. My idea was the more forcing Rc6, with a similar variation: 36. ♖c6 ♕d4; 37. ♖xd6 ♕xe4; 38. ♖xh6+ ♔xh6; 39. ♕xg5+ ♔h7; 40. ♕h5+ ♗h6; 41. ♕xh6 mate. Can anyone find a significant improvement for Black in this line? I liked Evans' solution, but it seems that this line also leaves White at least 2 pawns up with a clear win. Thanks.
Premium Chessgames Member
  OBIT: I also think 36. Qf7 works just as well. After 36...Qb8 37. Bxg5 wins easily, trading down to a K+P ending where White has two extra pawns.

There are some interesting lines after 36. Qf7 Qd4!?, although it appears White has at least two ways to win. The first winning line is 37. Bxg5. Against this move, Black can play 37...Qxe4, hoping for a draw after 38. Bf6 Qf4+ 39. Kg1 Qe3+ (...Qd4+ leads to a similar position); however, 40. Kh1! avoids the perpetual, and after 40...Qg3 White exchanges down to a won K+P endgame - Black has a protected passed pawn but can't stop both the b-pawn and g-pawn.

An even cuter win after 36...Qd4, I think, is 37. Qf5+ ("geez, I've missed perpetuals in the past, better not risk it...") Kh8 38. Bxg5 hxg5 39. Qg6! Qd1 (the only defense to 40. Qh5+) 40. b4!! Black is paralyzed - his rook and bishop can't move, and his queen must watch h5. So, White wins by marching his pawn to b8.

Feb-11-06  snowie1: Good puzzle..I gottit! Wierd kibitzing..someone suggested playing some other game? Maybe Hopscotch? With real Scotch...hop over and grab the Scotch....have at it.
Premium Chessgames Member
  patzer2: Here's some analysis with the Opening Explorer and Fritz 8:

<1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. f3> Entering (E80) the King's Indian, Samisch Variation. <5...O-O 6. Nge2> Though the lines can transpose, more frequently seen are 6. Be3 as in Morozevich vs Svidler, 2005 and 6. Bg5 as in Ivanchuk vs Svidler, 2004. <6...e5> Some popular alternatives are 6...c5 as in N Mohota vs Ivanchuk, 2005 and 6...a6 as in A Moiseenko vs Van Wely, 2005. <7. Bg5> More frequently played is 7. Be3 as in Jobava vs Smirin, 2005 by transposition. <7...c6 8. Qd2 a6!?> This is the only game with this move in the database. Other options are 8...Nbd7 as in J Romo vs Fischer, 1959 and 8...Qa5 as in R Sanguinetti vs Fischer, 1959. <9. d5 cxd5> Fritz 8 slightly prefers 8...Qa5 or 8...c5 or 8...Qc7 . <10. Nxd5!> This strong central Knight post gives White a clear advantage. <10... Be6 11. Nec3 Nc6 12. Bd3 Nd4 13. O-O Bxd5 14. cxd5 b5 15. Kh1 Rc8 16. Ne2 Nxe2 17. Bxe2 h6 18. Be3 Nh5 19. a4! Nf4 20. axb5 Nxe2 21. Qxe2 axb5 22. Qxb5 Rb8 23. Qe2 Rb3 24. Ra3 Qb8 25. Rxb3 Qxb3 26. Rc1 f5 27. h3 Rb8 28. Rc2 fxe4 29. fxe4 Kh7 30. Bc1 Rb4 31. Rc7!> This move gives White a won position. Evans demonstrates some very practical and useful tecnique in winning this pawn-up middle game. <31...Rb8 32. Kh2 Rf8 33. Qg4! Qb6 34. Qd7 Rg8 35. Qe7! g5 36. Bxg5!!> White sacs a Bishop to rip open Black's pawn structure for a decisive invasion with his Queen and Rook, leaving Black's piece majority looking like useless chunks of dead wood. <36...hxg5 37. Qf7! Kh6 38. Re7! 1-0> Black resigns in lieu of the threat 39. Re6+ Kh2 40. Qh5+ Bh6 41. Qxh6#.

Feb-12-06  EmperorAtahualpa: <Don't feel bad; I was too, until I played it on a board. :) They can't all be good ideas... -Joe>

Thanks for the encouragement, <nostalgia>! And welcome to this site. :)

Sep-15-12  ChessMystery: Is 17...h6?! not a mistake? What about 18.Bxh6 ? Have I overlooked something?
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