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| Apr-13-07 | | Timex: This was nice and very easy. |
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Apr-13-07
 | | gawain: I just wanted to share this position which is reached after 30 Rh7+ (the right move) Kg5 31 h4+ (a tempting but terrible move!) Kg4 32 Rf4+ Kg3. Although B's king is surrounded by W's pieces there is absolutely nothing White can do to save himself from mate. The longest he can hold out is 9 more moves. Work it out! 
click for larger viewFrom here White lasts longest after 33 b3 Qa3+ 34 Bb2 Qb3. He loses faster if he tries another check 33 Be1+ Kg2. The resulting position is maybe even more amusing. The B King at g2 is completely safe. 
click for larger view |
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| Apr-13-07 | | cydmd: I think White didn't see the winning move {30.Rh7+) and blundered. That move wouldn't give Black a tempo. If Black had played {30...Qb1) instead of 30...♗b5, things might be tragic for White, assuming White would follow the same "winning" line. Take a look at this: 30.♔d2 ♕b1 (threatening 31...♕d1#) 31.♖h8+ ♔g5 32.h4+ ♔f5 33.♖h5+ ♔g4 34.♖g5+ ♔xh4 and the checks are finished. So, 35.♗f6 didn't work (35...♕d1+ 36.♔c3 ♕d3#) and White is lost because of the hanging rook. Even so, 31.♖h7+ still wins.
If White tries to escape with 31.♔e2, it follows:
31...♗b5+ 32.♔d2 because if 32.♔f2 ♕f8+ and {33...Qxf8)
32...♕d6+ 33.♔c1 ♕xe3+ and Black has at least a draw. If White didn't see the winning line, Black could spend a tempo to win. I didn't check this analysis OTB so, please, feel free to make comments on it. |
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Apr-13-07
| | gawain: In the second position above I meant to refer to the K at h2 not g2. This K plays a role in B's mating attack. Here is one likely mating position that can arise from the previous diagram. After 39 ...Bb5# 
click for larger viewThe K covers the escape square g1. |
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| Apr-13-07 | | MostlyAverageJoe: <cydmd> In your second paragraph, 33.Rh5+ is what loses it for the white. Try running away with the king instead: 33.Ke2! Black cannot prevent the white king from reaching relative safety on h2, cutting off the escape for the black king. It can still survive a bit by trading its queen for the bishop, but white wins easily. |
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| Apr-13-07 | | mahmoudkubba: Apart from not understanding any think even lots of theoratically matters abt this game, I couldn't understand why bl. didn't play 30- ... qb1?? really in that I am at least just asking God's rewards and Thawabs. |
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| Apr-13-07 | | MostlyAverageJoe: OK, so when could black save himself? HIARCS says:
After 24 ... Re7, the bishop on g7 is perfectly safe (25. Rxg4? Rf2 26. Bd2 Qa1+ 27. Kc2 Qxe1). Therefore 25. Rxf8, small advantage for white (+1), long game ahead. After 23 ... Bd7, doubling white rooks on file f leads nowhere, e.g. 24. Ref1 Ba4 and now white has no tempo for R1f7 as in the game, because of Qx2# threat. The position evaluates at +0.03 for white, virtually even. |
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| Apr-13-07 | | ruzon: An interesting element is White's positioning of pawns a Knight's move apart on the Kingside, cutting off a lot of running room. |
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| Apr-13-07 | | wals: Grind,grind,grind, no, it's not a chess pgm grinding out analysis, it's me grinding my teeth in frustation. |
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| Apr-13-07 | | Crowaholic: The difficult part was finding the forced mate starting with 30. ♖h7+. The Spike engine says that after 30. ♖h7+ ♔g5 31. ♙h4+??, Black actually has a forced mate in 11 moves, so, as was mentioned, you have to get the bishop to f6, g7, h6 and back with check, assuming perfect counterplay. Another non-trivial line is 31. ♗f6+ ♔f5 32. ♗g7+ ♔g5 33. ♗h6+ ♔h5 34. ♗f4+ ♔g4 35. ♙h3# which involves both rooks, the bishop, and two pawns. So I think it is no coincidence that Kempinski saw the queen sac but not the best follow-up. The final position nicely illustrates this: White threatens ♖h7#, but Black has the momentary showstopper ♕xb2+ followed by ♗xb2 ♔xg5. Of course, being a rook for a pawn ahead, White wins the endgame easily, but probably not without promotion. |
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| Apr-13-07 | | ikalel: Who saw it all the way to 33.Rh5+!?
I did OK, I saw that white shouldn't keep checking Black with Rh8+ but instead move his king. |
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| Apr-13-07 | | siu02jm: 
click for larger view26.Qxg7+ Rxg7 27. Rxf8+ Kh7 28. R1f7 Ba4 29. Rxg7+ Kh6 30. Rh7+ Kg5 31. Bf6+
Kf5 32. Bg7+ Kg5 33. Bh6+ Kh5 34. Bf4+ Kg4 35. h3#
White mates 1-0
click for larger view |
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| Apr-13-07 | | ikalel: 30.Rh7+!! Yeah, amazing. White wins immediately. |
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| Apr-13-07 | | ron11612002: This is kind of irrelevant to the topic but can anyone recommend some good chess books that I can subsitute for software. Most of you are probably grandmasters but I having a difficult time sustaining my attention and interest in chess on and off for periods of one year. At my school there's no chess clubs. I've been reading this Kasparov book and following along with the annotations. I'm analyzing more games and I do see my game improving but I just can't play at the competitive level. I have a pretty good retentive memory but i'm lacking the visuo-spatial skills. Any advice would help. Practice, repition, and hard work is the only answer for improvement and a shaper chess skills. |
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| Apr-13-07 | | TrueBlue: I don't believe any human can see 6,7 moves ahead in this position, at least I can't see. I can't reproduce the line even after I was the solution :) Other than that I got the first 3 moves (can't calculate much than that). Maybe playing a little blind chess can help me? |
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| Apr-13-07 | | NBZ: 30. Rh8+ misses mate by a whisker: 30. Rh8+ Kg5 31. h4+ Kf5 (Kg4? Rxg6+ Kf5 Rg5#) 32. Rf8+ Kg4 33. Rf4+ (Rxg6+ Kh5!) Kg3! (Kh5? Rh7#) 34. Rxg6+ Kh2 and the king escapes. |
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| Apr-13-07 | | dabearsrock1010: What if 28...Qa1+? |
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| Apr-13-07 | | keres777: I love 33. Rh5+...pretty move! |
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| Jun-15-24 | | mel gibson: I saw the first few moves straight away.
Stockfish 16.1 says White wins _ mate in 12:
26. Qxg7+
(26. Qxg7+ (1.Qxg7+ Rxg7 2.Rxf8+ Kh7 3.R1f7 Qc4 4.Rxg7+ Kh6 5.Rxd7
Kg5 6.Rh7 Qe2 7.Bf6+ Kf5 8.Bg7+ Kg5 9.Bh6+ Kh4 10.Rf4+ Kh5 11.Bf8+ Kg5
12.Be7+) +M12/110 70) |
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| Jun-15-24 | | stacase: <mel gibson: I saw the first few moves straight away.> Me too (-:
26. Qxg7+ Rxg7
27. Rxf8+ Kh7
28. Bxg7 ???
Well OK just two but I figured Black's two Rooks were toast and a King hunt would follow. |
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Jun-15-24
 | | chrisowen: Fed its hurl its a but mink q oy its v c ju Qxg7 its acrobat mob faith its abridge lug its aggregate qigong its chi Qxg7 eel |
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| Jun-15-24 | | TheaN: Saw the concept but missed 28.R1f7! and played Bxg7 which is only a draw. Kempinsky slightly misplayed this too, however, as 30.Kd2?! was too prophylactic. At that point it's #7 after 30.Rh7+! (continuing the mating pattern that allowed 28.R1f7 in the first place) 30....Kg5 (Kxh7 31.Rh8#) 31.Bf6+! Kf5 (Kg4 32.Rh4+ Kf5 33.Rf4#) 32.Bg7+ Kg5 (Kg4 33.Rf4+ Kg5 34.h4#) 33.Bh6+:
click for larger view
It's interesting how White can force the bishop to h6 via f6-g7-h6, all with either direct or discovered check. Now the f-♖ is free, and Black is mated after 33....Kg4 (else 34.Bf4+ with 35.h3#) 34.Rf4+ Kh5 35.Bg5+ Kxg5 36.h4#. |
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Jun-15-24
| | chrisowen: g7 thunderdome affable |
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| Jun-15-24 | | King.Arthur.Brazil: After trying several lines, the King suspect that the more plausible is the end-game with 26. Qxg7+ Rxg7 27. Rxf8+ Kh7 28. Bxg7 Kxg7 29. R1f7+ Kh6 30. Rxd7 Qc4+ 31. Kb1 Qd3+ 32. Ka1 Qxe3... etc. This is the hard move: R1-f7! and also the continuation Rh5!!, W must be seeing it before (gxh5 34. Rg5#). Maybe, B could try 28...Qa1+ 29. Kd2 Qg1, or even 28... Bf5, instead of 28... Ba4. The move 30... Qb1, also don't help, but could be tried, since Bb5 is useless. If B played it, and if the game follows the same, on 35. Bf6?! Qd1+ 36. Kc3 Qc2#! But, even after 30...Qb1 31. Rh8+ Kg5 32. h4+ Kf5 33. Ke2 Qd3+ 34. Kf2 Qxd5| If the game follows the B original idea: 35. Rh5+ (has no mate now) gxh5 36. Rg5+ Ke6 37. Rxd5 Kxd5. it seemed tied. However B has another way to win: 35. Rf8+(Ke6 36. Rf6# ) or Kg4 36. Rf4+ Kh5 37. Rh7#. (PS. I reviewed my comment, since the last part needed more analysis). |
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| Jun-15-24 | | whiteshark: Game Collection: 000_-> Middlegames Opp col Bishops 3 |
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Kibitzing
sac: 26.Qxg7+