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| Jul-29-14 | | TheBish: T Wedberg vs J Ljungdahl, 1974 White to play (29.?) "Easy"
White can win easily enough with 29. Ng6+ hxg6 (else Black loses his queen) 30. Qxg6, and Black can't stop mate on h7, but can delay things with spite checks, i.e. 30...Qxg3+ 31. Kxg3 Rc3+. But the best move leads to a mate in 3: 29. Rxh7+! Kxh7 30. Qg6+ Kh8 31. Qh6#. |
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| Jul-29-14 | | Anjeneyar: It is clear that the forcing line of mate in 3 is best. It is short and sweet and shuts out black, without giving any options.
1.Rxh7+.Kxh7.2.Qg6+.Kh8.3.Qh6#
1.Qh6! Undoubtedly wins as black has no defense; however, 3 spite checks makes it mate in 5. |
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| Jul-29-14 | | Dr. J: So it transpires that White wins by:
29. Rxh7+ (mate in 3); or
29. Qh6 (mate in 5, after spite checks); or
29. Ng6+ (mate in 5, after spite checks); or
29. Qxe5 dxe5 30. Nxc8 (overwhelming material advantage).But I'm disappointed: it would have been so much nicer if the only solution had been the elegant 29. Be4, since, after 29...Rc2+ 30.Bxc2, it is the hanging White Queen that prevents 30...Qe2+ |
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| Jul-29-14 | | agb2002: White has a bishop and a knight for a rook.
Black threatens 29... Qxe6.
White can win a piece with 29.Qxe5+ dxe5 30.Nxc8.
However, three white pieces can attack the remains of the black castle and deliver mate after sacrificing one of them: 29.Rxh7+ Kxh7 30.Qg6+ Kh8 31.Qh6#. Or 29.Ng6+ hxg6 (29... Kg8 30.Nxe5) 30.Qxg6 Qxg3+ 31.Kxg3 (or 31.Qxg3 + -) 31... Rg8 32.Rh7#. |
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Jul-29-14
 | | al wazir: What was wrong with 23...Bxf5 ? |
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| Jul-29-14 | | Once: An unusually large number of solutions today. Fritzie doesn't give quite the same numbers as Dr J: 29. Rxh7+ (mate in 3)
29. Ng6+ (mate in 4)
29. Qh6 (mate in 6)
29. Be4 (+20.8)
29. Qb3 (+11.6)
29. Qg4 (+11.3)
29. Qxe5 (+6)
29. Qa2 (+4.3)
And on it goes. All in all, Fritzie finds 14 moves which score at +1.5 or better for white. The key point seems to be that black can't defend the h7 square or bring his pieces to defence of the kingside. The white rook and knight do an excellent job of keeping the black king in the corner. As to which of the mates is "better", I've always thought that any forced mate is a win and therefore a viable solution. There are no style points in chess. |
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| Jul-29-14 | | morfishine: 29.Rxh7+ Kxh7 30.Qg6+ Kh8 31.Qh6# |
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| Jul-29-14 | | David2009: Nice finish to a well-played attack. Rewind to move 24.
click for larger view
White has just played 24.Nd5 and Black is in all kinds of trouble. 24...Bxd5 fails to 25.Qg4+ Kf1 26.Qg7+ Kf1 27.Bxd5 etc. Black tried 24...Qxc2 no doubt expecting
25.Nxe7+ Kf8 26.Qxe6 Qxf5 27.Qxf5 Kxe7 with faint survival chances but instead was hit with the spectacular 25.Qxe6!
and the rest we know.
T Wedberg vs J Ljungdahl, 1974 |
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| Jul-29-14 | | Oxspawn: It is not exactly as if White is in a bad place.
29. Qxe5+ dxe5
30. Nxc8 Rxc8
31. Rxb7
….may be unexciting but leaves white a bishop and a pawn up.
However, white’s three active pieces can provide something more dynamic and cataclysmic:29. Rxh7+ Kxh7 (Kg8 30. Qf7#)
30. Qg6+ Kh8
31. Qh6#
The rook is the bludgeon, the queen the rapier, but without moving a muscle, the knight provides the critical cover. |
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| Jul-29-14 | | Cheapo by the Dozen: <al wazir>,
23 ... Bxf5 allows a straightforward Qxf5/Qg4+/Qg7# in most lines. ... f6 is no help in averting all that, so far as I can see, and neither is pushing the h-pawn. So that just leaves 23 ... Bxf5
24 Qxf5 R(f)d8
Is that how you see things? |
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| Jul-29-14 | | mathlover: fantastic game
fantastic combination |
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| Jul-29-14 | | zb2cr: By luck, I hit on the game solution at once. Several fine alternate solutions are pointed out by <Cheapo by the Dozen>, <MountainMatt>, <M.Hassan>, <raviarun>, <TheBish>, and <Dr. J>. Thanks to <Once> for silicon-assisted confirmation. |
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| Jul-29-14 | | Refused: I went for the prosaic 29.Qh6
I saw it would be mate after spite checks. |
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| Jul-29-14 | | SuperPatzer77: <<Oxspawn> ....29. Rxh7+ Kxh7 (Kg8 30. Qf7#)
30. Qg6+ Kh8
31. Qh6# >
<Oxspawn> 29...Kg8 is illegal because the White Knight on e7 covers g8. Thus, Black is forced to capture the White Rook on h7. SuperPatzer77 |
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Jul-29-14
 | | Penguincw: Too easy for a Tuesday puzzle, although I forgot 31.Qh6# (for some reason, I though white would mate on g6). :p |
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| Jul-29-14 | | Cheapo by the Dozen: <al wazir>'s line can continue: 23 ... Bxf5
24 Qxf5 R(f)d8
25 Bd5 Bh4
26 gxh4 R(c)a8
27 Bf6
I don't see any Move 25 alternatives for Black. And while I haven't calculated carefully, I don't see how Black averts mate without giving at least the exchange back, if he can indeed avert it at all. |
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| Jul-29-14 | | kevin86: Mate in 3: 30 ♖xh7+ ♔xh7 31 ♕g6+ ♔h8 32 ♕h6#. A little easy- about a Monday and a half problem. |
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| Jul-29-14 | | Chess Dad: I saw this one pretty quick.
I don't always see Tuesday puzzles that quickly, but it's nice when it happens. (Now if I can just start seeing Thursday puzzles this quickly...) |
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Jul-29-14
 | | gawain: Nice little three move checkmate starting with 29 Rxh7+. All three of Black's heavy pieces are completely useless. |
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| Jul-29-14 | | Herma48852: My hats off to those who saw numerous alternative solutions, however the shortest was the one I found quickly and looked no further: 30. Rxh7+ Kxh7 31. Qg6+ Kh8 32. Qh6# |
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| Jul-29-14 | | WDenayer: Al Wazir: after 23. ... Bxf5?, White wins in all variations. Q takes. Be4, Nd5, no need to calculate, Black caves in. Just try it. Cannot be defended. |
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| Jul-29-14 | | rickycota: I think Qh6 should do the trick too |
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| Jul-29-14 | | BOSTER: The nice combo began white to play 25.
Good POTD. |
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Jul-29-14
 | | kbob: Beating a dead horse, I know, but also cute is 29. Be4, Qg7 30. Qf6 etc |
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Jul-30-14
| | al wazir: <Cheapo by the Dozen>: After 23...Bxf5 24. Qxf5 f6 25. Bd5+ Kh8, I don't see a crushing continuation for white. If 26. Ne4, then 26..Qd8. If 26. Be4, then 26...Rf7 or 26...Bd8. |
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