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| Jun-02-15 | | M.Hassan: "Easy"
White to play 33.?
White has 2 Bishops for a Rook+2pawns
33.Bxg6+ Qxg6 Bl.Queen is pinned now
34.Rf7+ Kh6
<if...Kh8/g8 35.Qxg6> 35.Bf4 Qg4
36.Bxg4+ Kxg4
Black looses his Queen and a pawn for two Bishops. White wins |
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| Jun-02-15 | | Cheapo by the Dozen: Unless I'm overlooking something, this is the second straight week with an unusually subtle or complex Tuesday problem. My solution is 33 Bxg6+, with the goal of forcing Black to allow the Rg1 pin winning the queen. Black has a few choices to try to wiggle out, but they fail, e.g. 33 Bxg6+ Kh6
34 Qd2+ Kg7
35 Be5+ Kg8
36 Qd5+
33 Bxg6+ Qxg6
34 Rf7+ Kh6
35 Bf5+
33 Bxg6+ Kg8
34 Bf7+
33 Bxg6+ Kg7
34 Qb2+
and something like one of the other lines will ensue. |
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| Jun-02-15 | | Cheapo by the Dozen: Talk about sweeping open lines on the diagonals. Wow. |
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| Jun-02-15 | | agb2002: White has two bishops for a rook and two knights.
White can start a winning attack with 33.Bxg6+:
A) 33... Qxg6 34.Rf7+ Kh6 (34... Kg8 35.Qxg6#) 35.Bf4+ Qg5 36.Bxg5+ and mate in three. B) 33... Kg7 34.Be5+ Kh6 (34... Kg8 35.Qb3+ Qe6 36.Qxe6#) 35.Bf5 B.1) 35... Qg8 36.Qd2+ Qg5 37.Bf4 wins the queen.
B.2) 35... Qh4 36.Qd2+ as in B.1.
B.3) 35... Ra2 36.Qc1+ as in B.1.
C) 33... Kh6 34.Bf4+ Kg7 35.Be5+ transposes to B. |
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| Jun-02-15 | | morfishine: <33.Bxg6+> |
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Jun-02-15
 | | An Englishman: Good Evening: Winning such a position against Karpov is not so hard. Getting that position--not so easy, darn it. |
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| Jun-02-15 | | Reisswolf: This would have been a great Friday puzzle with White to move after 25...exf3. |
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| Jun-02-15 | | sicilianhugefun: great |
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| Jun-02-15 | | Oxspawn: Failed on Monday, succeeded on Tuesday. At this rate of progression the weekend will be toast.
Now if only we could stop referring to Sunday as 'insane'. Honestly? We still don't know that language hurts? |
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| Jun-02-15 | | mistreaver: Tuesday.White to play. Easy.33?
33 Bxg6+ Qxg6
34 Rf7+ Kh6
35 Bf4+ |
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| Jun-02-15 | | Prosperus: I think that is a more simple way, because it eliminates the best answer of Black 33. ... Kh6 33. Rf4 Qg5 34. Be7! Qh6 35. Bxg6+! Qxg6 (35. ... Kg8 36. Qc4+ Kg7 Qf7#; 35. ... Kg7 36. OK, it's not so simple) 36. Rf7 Kh6 37. Qd2+ Qg5 38. Qxg5# |
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| Jun-02-15 | | Prosperus: I've found: 33. Rf4 Qg5 34. Be7! Qh6 35. Bxg6+! Kg7 36. Bf6+ Kg8 37. Qc4+ Kf8 38. Qf7# |
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| Jun-02-15 | | zb2cr: It all starts with 33.Bxg6+.
The main line is 33. ...Qxg6; 34.Rf7+, Kh6; 35.Bf4+. Black will have to lose his Queen and still be under furious attack. Black can move his King:
A. 33...Kg8; 34.Qb3+, Kg7; 35.Qf7+, Kh6; 36.Bf4+. B. 33...Kg7; 34. Be5+, Kh6 (34. ... Kg8 looks disastrous after 35. Qb3+); 35. Bf5, Ra2; 36. Qc1+, Qg5; 37. Bf4 and White will win the Queen. |
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| Jun-02-15 | | Sniffles: Methinks the more serious challenge here is figuring out how and why Karpov bollocksed the game that badly. Two rooks still in the parking lot? A 'maybe I should have taken up badminton.. or croquet' moment? |
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| Jun-02-15 | | CHESSTTCAMPS: White has the bishop pair for a rook plus two pawns, but the black rooks in the corners do not defend the king effectively from white's 4-piece attack. The g-pawn is black's key defending pawn, but white can eliminate it. Of course not by 34.Rg1?? Qf3+ After 33.Bxg6+! is is clear that the bishop can't be taken: A. 33... Qxg6 34.Rf7+ Kh6 (Kg8 35.Qxg6#) 35.Bf4+ Qg5 36.Bxg5+ Kxg5 37.Qg2+ Kh6 (Kh4 38.Qg3#) 38.Qg7# B. 33... Kg8 34.Qb3+ Kg7 35.Qf7+ Kh6 36.Bf4+ wins
C. 33... Kg7 34.Be5+ Kh6 (Kg8 35.Qb3+) 35.Bf5! Qg5 36.Rg1 Qe3 (to prevent 37.Bf4+) 37.Bg7# D. 33... Kh6 34.Bf4+ Kg7 35.Be5+ transposes to C.
Time for review... |
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| Jun-02-15 | | Mating Net: <Two rooks still in the parking lot?> Exactly, at no point in the game did Kasim have to worry about the Black Rooks. |
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| Jun-02-15 | | Cheapo by the Dozen: This as an extreme case of open lines working out well for White -- the diagonals I cited above, the d-file, and more. Even Karpov didn't see what was going to hit him. |
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| Jun-02-15 | | patzer2: In trying to find an improvement for Black in this game, my research of the chessgames.com Opening Explorer led me to conclude the player who lost the game found one shortly afterwards. According to the "PGN: view," this game was played in a tournament in Vitoria Gasteiz, Spain on Nov 2, 2007. Just 19 days later on Nov 21, 2007 the same opponents repeated the first 14 opening moves of this classical Nimzo Indian opening in Kasimdzhanov vs Karpov, 2007 in the World Blitz Cup in Moscow, Russia. However this time Black found a slight improvement with 14...a6 = to fully equalize and force an easy draw. The most interesting and instructive move in the game IMO is the astounding <21. Bb8!> (diagram below): 
click for larger viewHere (diagram above) Black makes the clearly decisive error <21...Nd5??>, allowing 22. Nf4! (+4.25 @ 21 depth, Deep Fritz 14). Black can put up more resistance with Fritz's first choice 21...Bd5, but after 22. Nf4! Qh6 23. Be5!  to  (+1.46 @ 26 depth, Deep Fritz 14) White still has a strong and near winning advantage. |
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| Jun-02-15 | | TheaN: Tuesday 2 June 2015 <33.?> White has the bishop pair for a rook and two pawns. Active bishops, which these are, should be enough to counter a rook. However, in the open position at hand black has some resources so white has to be swift. The break <33.Bxg6+> is obvious. White can accept, or decline it in three different ways. Accepting it puts the queen in a pin and soon leads to mate. A) <33....Qxg6 34.Rf7+ Kh6 (Kg8 35.Qxg6#) 35.Bf4+ Qg5 36.Bxg5+> and white is winning, but it's mate in three <36....Kxg5 37.Qf5+ Kh4 (Kh6 38.Qf6#) 38.Qf4+ Kh3 39.Qg3# 1-0> B) <33....Kg8> probably the worst way to move the king, because it leaves the Bg6 unopposed. <34.Qb3+ Kg7 (Qc4/Qe6 35.QxQ+ Kg7 36.Qf7+ Kh6 37.Bf4#) 35.Qf7+> the queen on f7 is fatal <35....Kh6 36.Bf4+ Qg5 37.Bxg5+ > and soon mate as in A. C) <33....Kg7 34.Be5+> D transposes to this. In fact, this gives black an option less and is therefore a lesser alternative. D) <33....Kh6 34.Bf4+ Kg7> Qxf4 35.Rxf4 is not immediately over but fairly demotivating for black; there's no options left. <35.Be5+> transposed to C. <35....Kh6>. The key of the declined variations: all the white pieces are in play and it seems black can continue to shift between g7 and h6. Alas, with the bishop on e5 instead of d6, white wins with <36.Qd2+!>: D1) <36....Qf4 37.Qxf4+ > and mate soon. D2) <36....Qg5 37.Bf4 Kxg6 38.Bxg5 > is hopeless for black. D3) <36....Kxg6 37.Qd6+ Kh7 (Kg5 38.Qf6#; Qe6 38.Qxe6+ ) 38.Qe7+ Kg6> anything else is mate in one <39.Rf6+ Kg5 40.Rf7+! Kh6 (Kg6 41.Qf6#)> and now for the finishing touch: <41.Rh7+! Rxh7 42.Qf6+ Qg6 43.Bf4# 1-0> |
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| Jun-02-15 | | Chess Dad: I missed this one. I saw 33. Rg1 and thought Black queen would have no escape square that didn't allow checkmate on the following move. I think this is how it might proceed after that mistake. 33... Ra1
34. Rxa1 Qf3+
35. Kg1 Qxf7
White would end the sequence up a bishop for two pawns. Perhaps that would be enough to win, but it's certainly not as strong as the game line. |
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| Jun-02-15 | | kevin86: Rf7+ follows and the queen is won or mate is forced. |
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| Jun-02-15 | | njdanie: A rather short piece today Mr. Owen. Cat got your tongue today? A little at loss for what to say today? |
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| Jun-02-15 | | whiteshark: <33. Bxg6+>, and that's it. |
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Jun-02-15
 | | Penguincw: Darn it! I actually thought I would solve a puzzle for the first time in 2 weeks. Anyway, the first combination I had was 33.Rf4 Qg5 34.Be7 Qh6, and black is just rolling up into a ball. However, black has the counter-attacking move 33...b3, so played 33.Rg1 instead. If 33...b3, 34.Bxb3, and black has given away a perfectly healthy passed pawn (if 34...Qf3+ then 35.Qg2, and there is no 35...Qxb3 due to 36.Qxg6# 1-0. Of course, I'm basing all my thoughts on bad moves. It seems that 33...Ra1+ or 33...Qf3+ would spell disaster for white. |
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Jun-02-15
 | | Check It Out: 33.Bxg6 Qxg6 34.Rf7 Kh6 35.Bf4 Qg5 Looks good enough to win. |
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sac: 12.axb4