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Mar-17-14
 | | Phony Benoni: A familiar sac from an unfamiliar angle. Here's the classic trap int he Marshall: click for larger viewIn S Sery vs Z Vecsey, 1921, Black fell for it with 18...Bg3, when 19.Qxf7+ is our mate today. However, there's a trap in the trap. In L Steiner vs K Helling, 1928 Black played 18....Bh2. After 19.Kf1 Bg3,, White reflexed 20.Qxf7+ and got flummoxed by 20...Rxf7+. |
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Mar-17-14 | | sfm: We have seen something like this quite a couple of times in the Marshall-attack, where White's white-squared bishop invariably is on the diagonal to f7, his rook is on the e-file, Black's Bc8 hasn't moved yet and the black Queen has gone fishing for threats.
So if the White queen looks to f7 (usually from f3), and nothing else covers e8 - WHAM! |
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Mar-17-14 | | sfm: <Phony> - don't write the same as I do, don't write it better - and don't post it just before me. |
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Mar-17-14 | | Oxspawn: Monday morning and I am in Bangladesh and I was staring at a puzzle that said ‘insane’ and realised it was still Sunday’s puzzle (due to the time difference). But as it was Monday I was about to crack it easily by sacrificing my queen. Then the clock struck midnight somewhere, the coach turned into a pumpkin, the footmen into mice and I was left in rags and with this slightly easier challenge. I nearly loved Mondays there for a moment. 22. Qxf7 Kh8
23 Qxf8++
or...
22. Qxf7 Rxf7
23 Re8++ |
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Mar-17-14 | | M.Hassan: White is 2 pawns up.
22.Qxf7+ Rxf7
23.Re8#
the pinned Rook on f7 can not defend.
Very nice finish.
if Queen is declined:
22........Kh8
23.Qxf8# |
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Mar-17-14 | | Patriot: 22.Qxf7+ Rxf7 23.Re8# is a familiar pattern. |
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Mar-17-14 | | lost in space: I love Mondays!
22. Qxf7+ Rxf7 23. Re8# |
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Mar-17-14 | | Cheapo by the Dozen: That looks like something out of Bobby Fischer Teaches Chess (which was all about the back rank mates). |
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Mar-17-14 | | Cheapo by the Dozen: Nice story, <Phony Benoni>! |
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Mar-17-14 | | agb2002: White has a bishop, a knight and two pawns for the bishop pair. Black's back rank is weak due to the bishop on its original square. This suggests 22.Qxf7+ to divert the rook on f8: A) 22... Rxf7 23.Re8#.
B) 22... Kh8 23.Qxf8#. |
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Mar-17-14 | | morfishine: 22.Qxf7+ Rxf7 23.Re8# |
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Mar-17-14
 | | Penguincw: Reminds of a trap set up in some game (Nakamura vs Kramnik, 2010 I believe). 1/1 this week. |
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Mar-17-14
 | | sleepyirv: It helps that it is Monday.
22. Qxf7+ and there will be a mate on the bank rank.
I'm going to guess Black spent his time calculating what would happen if White snatches the a8 Rook. |
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Mar-17-14 | | Herma48852: Nice mating pattern: 22. Qxf7+ Rxf7 23. Re8# |
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Mar-17-14 | | zb2cr: An easy Monday Queen sacrifice. 22. Qxf7+. If Black takes 22. ... Rxf7, then the Rook is pinned and 23. Re8# is mate. And, if Black moves the King into the corner, 23. Qxf8# is mate. |
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Mar-17-14 | | dunamisvpm: Do you think 22.Re8 will also win? |
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Mar-17-14 | | Once: <dunamisvpm: Do you think 22.Re8 will also win?> White is two pawns ahead, so just about any non-losing move ought to be fine. 22. Re8 doesn't force mate though, as 22...Ra7 defends. As puzzle was so Monday-tweazy I spent my time seeing if there was anything wrong with 22. Qxa8. Did black have a fiendish plan in mind when he played 21...Qh3? As far as I can tell, black has nothing, zip, nada. He might have been thinking of 21...Qh3 22. Qxa8 Bg4 intending Bf3. But that doesn't work. After 22...Bg4 23. Re8 white threatens mate on f8, stays a piece ahead and defends g2. 22. Qxa8 seems to win the grubby way by hoovering pieces. Not as pretty as 22. Qxf7+ but equally effective. |
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Mar-17-14 | | YetAnotherAmateur: <dunamisvpm>22. Re8 Be6 and black survives to fight on. 22. Qxf7+ and black has no chance. |
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Mar-17-14 | | kevin86: What checks at f7 with the queen and mates the next move. |
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Mar-17-14 | | Once: <YetAnotherAmateur: <dunamisvpm>22. Re8 Be6 and black survives to fight on. 22. Qxf7+ and black has no chance.> That was my first thought. But if we look a little deeper we see 22. Re8 Be6 23. Qxa8  click for larger viewBlack is a whole rook down, threatened by mate on f8 and doesn't have any tricks of his own. It's not mate in two, but it sure is hopeless. 22. Re8 is tempting because it does win quickly against some weak replies by black, such as 22...Rxe8 and 22...Be6. But the best counter is 22...Ra7 when white's attack fizzles out and he is left relying on his two pawn advantage. |
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Mar-17-14 | | JG27Pyth: The last time (a couple weeks ago) we saw this very "sac-the-queen bishop-pins-the-rook back-rank-mate theme" I solved it instantly -- no instantaneously -- only to realize, too late, I had failed to note a detail... this time, though, this time it will be different... *45 minutes later* Yes. Yes. I've got it now! ;) |
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Mar-17-14 | | MountainMatt: A queen sac, naturally - 22. Qxf7+ Rxf7 23. Re8# or 22...Kh8 23. Qxf8# |
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Mar-17-14 | | patzer2: Today's 22. Qxf7+ two-move mate solution reminds me of my first Chess Book, "Bobby Fischer Teaches Chess." The book was mostly a compilation of simple one to three move back rank mate combinations. It was a beginner's book written by "programmed learning specialists" for popular consumption, and, as such, was an enterprise to which Fischer only lent his name. Fischer's real contribution to Chess literature, other than his published games, was his "My 60 Memorable Games" which is one of my favorite Chess books. Anyway, since it's Monday and St. Patricks' day, it's good to keep it simple and green. |
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Mar-17-14 | | Nova: Thank you <Phony Benoni> for the interesting side note! Comments like that, from other members too, make reviewing the puzzles of the day, even on easy days like Mondays, worthwhile. |
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Mar-17-14 | | Nullifidian: 22. ♕xf7+ ♖xf7 23. ♖e8# |
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