Sep-27-16 | | Ultra: Got it! Gotta love the early week puzzles. |
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Sep-27-16
 | | Phony Benoni: First thought is <31.hxg6>, a point being 31...Qxd3 32.Qxh7+ Kf8 33.g7+ uncovering on Black's queen. If Black recaptures with <31...hxg6 32.Bxg6> and White takes on g6 before grabbing the bishop back. That should win easily.. There's a little trap after <31...fxg6 32.Rxe6 Qxd3>. Now 33.Re7 looks deadly, but Black has 33...Qd1+ 34.Kh2 Qd6+. So just sac the bishop on g6 again, as before. |
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Sep-27-16 | | dfcx: Material is even.
There are three candidate moves, Rxe6, hxg6 and Bxg6. However they must be played in the right order. 31.Rxe6? Qxd3 32.hxg6 hxg6 and white runs out of further attacks. 31.Bxg6 hxg6 32.hxg6 Qf6 not much better.
That leaves only
31.hxg6 hxg6 32.Bxg6 fxg6 (or white will play Bh7+) 33.Qxg6+ Kf8 34.Rxe6 wins |
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Sep-27-16 | | YouRang: Tuesday 31.?
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I (white) have three things attacking Pg6, so it certainly seems I should start there. Do I take it with the bishop or pawn (ruling out the queen)? The bishop is a candidate because it's currently unguarded and under attack. However, after 31.Bxg6 hxg6 32.hxg6 Qf6! (not 32...fxg6? 33.Rxe6) 33.gxf7+ Kxf7, and white is left with a poor game. So <31.hxg6> makes sense as long as I'm good after <31...Qxe6>
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Obviously, <32.Qxh7+> sets up a nice discovered attack: <32...Kf8 33.g7+> and 34.Qxd3 next  Just for completeness, what if black declines the bishop? Either 31...hxg6 or 31...fxg6 forces me to move my bishop, and then 32.Bxg6! (safe due to 32...fxg5 33.Qxg6+ and I get the bishop back with all the pawns) . I don't see any other viable alternative for black, although <31...Qf6?> is a cute failure: <32.gxh6+ Kh8 33.Qxf6#)
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Sep-27-16 | | patzer2: With a bit more effort than usual for a Tuesday puzzle, I found the 31. hxg6 solution. I visualized the game continuation, but expected Black to put up slightly more resistance with 31... fxg6 32. Bxg6 Qf6 33. Qxh7+ Kf8 34. Re3 =- (+9.36 @ 21 depth, Deep Fritz 15).Black's decisive error was the not-so-obvious 30...Qd8? allowing 31. hxg6 (+9.36 @ 21 depth, Deep Fritz 15). Instead, the strong defensive move 30...Bg4! = appears to hold. After 30...Bg4!, play might go 31. hxg6 hxg6 32. Qg5 (32. Bxg6 fxg6 33. Qxg6+ Qg7 =) 32... Qd7 33. Re3 Bf5 34. Bxf5 Qxf5 35. Qxf5 gxf5 36. Ra3 Rxc4 = (0.01 @ 27 depth, Deep Fritz 15). |
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Sep-27-16 | | agb2002: The material is identical.
Black threatens Qxd3 and Bxc4.
White can attack the black king with the three remaining pieces and a pawn starting with 31.hxg6: A) 31... Qxd3 32.Qxh7+ Kf8 33.g7+ Ke7 34.Qxd3 + - [Q+2P vs B]. B) 31... hxg6 32.Bxg6
B.1) 32... fxg6 33.Qxg6+ (33.Rxe6 Qd1+ 34.Kh2 Qh5+ trades queens) 33... Kh8 (or 33... Kf8 34.Rxe6 + -) 34.Qh6+ Kg8 35.Rxe6 with a winning attack. B.2) 32... Bxc4 33.Qh7+ Kf8 34.Qh8#.
B.3) 32... Rxc4 33.Bh7+ Kh8 34.Bd3+ Kg8 35.Qh7+ Kf8 36.Bxc4 B.3.a) 36... Bxc4 37.Qh8#.
B.3.b) 36... Qd2 37.Qh8+ Ke7 38.Qe5 + - [R].
B.4) 32... Qd4 33.Bh7+ Kh8 34.Bf5+ Kg8 35.Bxe6 fxe6 36.Rxe6 as B.1. C) 31... fxg6 32.Bxg6 (32.Rxe6 Qxd3 33.Re7? Qd1+ 34.Kh2 Qd6+ - +) C.1) 32... hxg6 33.Qxg6+ trasposes to B.1.
C.2) 32... Qd7 33.Bxh7+
C.2.a) 33... Qxh7 34.Qxe6+ and 35.Qxc8 wins.
C.2.b) 33... Kh8 34.Bf5+ Kg8 35.Bxe6+ wins.
C.2.c) 33... Kf7 34.Qg6+ Ke7 35.Bg8 wins decisive material. C.3) 32... Rc7 33.Rxe6 hxg6 34.Rxg6+ and mate in two. |
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Sep-27-16 | | diagonalley: not quite as clear-cut as one would expect for a tuesday |
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Sep-27-16 | | cocker: Far too may lines to be considered for an 'easy' puzzle. |
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Sep-27-16 | | hashtag: TuesdayPuzzle |
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Sep-27-16 | | 7he5haman: 33.Rxe6 looks stronger to me than 33.g7+; the former looks like it leads to mate in a few more moves?! |
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Sep-27-16 | | zb2cr: I found this one quickly. |
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Sep-27-16 | | Romildo: The queen is hanging, game over. |
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Sep-27-16 | | ventricule: <7he5haman> I went for <33. Rxe6 > as well. Black can delay mate for a fex moves by sacrificing the queen but according to Stockfish both moves are equally crushing. |
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Sep-27-16 | | saturn2: I did not solve the puzzle but I am also confused by some analysis given here: For example. <dfcx 31.Bxg6 hxg6 32.hxg6 Qf6 not much better. That leaves only
31.hxg6 hxg6 32.Bxg6 fxg6>
What confuses me about this analysis? Why cannot play Black also play 32 ..Qf6 in your second line? As refutation is given: <or white will play 33 Bh7+> Ok so 33 ..Kh8 And what comes then? Another one: <patzer2 I visualized the game continuation, but expected Black to put up slightly more resistance with 31... fxg6> I dont understand why in this variation black is resisting very much. White plays 32 RxB and after 32..QxB 33 Re7 Black does not seem good to me. He can give a check but then? |
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Sep-27-16 | | patzer2: <Saturn 2> The line my computer gives as providing the most resistance is 31... fxg6 32. Bxg6 Qf6 33. Qxh7+ Kf8 34. Re3 (+9.36 @ 21 depth, Deep Fritz 15).After 31... fxg6 <32. Rxb QxB 33. Re7> (diagram below),  click for larger viewBlack turns the table and wins with the double attack (Queen fork) 33...Qd1+ 34. Kh2 Qd6+ 35. Kg1 Qxe7 (-14.73 @ 21 depth, Deep Fritz |
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Sep-27-16 | | saturn2: Thanks <patzer2> Also on my remark to <dfcx> I see my mistake: After 32 Bxg6 black can answer 32..fxg6 leaving the square f7 for the King to protect the queen on f6 later on after a discovered attack (33 hxg Qf6 gxh+ Kf7). But after 32 hxg6 there is not the answer fxg as shown by patzer2. |
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Sep-27-16 | | kevin86: I went for Rxe6, but that attack runs out of gas soon. |
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Sep-27-16 | | Aunt Jemima: First I looked at 31 Bxg6 but it didn't pan out. Then I saw 31 Rxe6 but that didn't work either. Finally I saw 31 hxg6 but it took a minute. I kept thinking that after 31...Qxd3 that black was defending the h7 square somehow. Once I noticed this wasn't the case it was easy. Last week I failed the Wednesday puzzle. Let's see what happens this week. |
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Sep-27-16 | | RandomVisitor: After 19.Rxe6! Rxe6 [19...fxe6 transposes] 20.Rxe6 fxe6 21.Qxe6+ Kg7 22.Qe5+ Kh6 23.Qf4+ Kg7 24.Qxc7+ black is likely lost click for larger viewKomodo-10.1-64bit:
<+2.64/34 24...Kh6 25.Qf4+ Kg7 26.Qe5+ Kh6 27.h4> Qd2 28.f4 Rf8 29.g3 Rf7 30.d5 Qb4 31.a3 Qc5+ 32.Kg2 Re7 33.Qg5+ Kg7 34.h5 a6 35.hxg6 h6 36.Qf5 b5 37.c3 Qd6 38.Kf3 Qc5 39.Be4 Qb6 40.Kg4 Qc5 41.Bd3 Qb6 42.Bc2 Qd6 43.Kf3 Qc5 44.Kg2 Qd6 45.Be4 Qc5 46.Kh3 Qd6 47.Bd3 Qf6 48.Qc8 Qd6 +2.68/34 24...Kf8 25.Qf4+ Kg7 26.Qe5+ Kh6 27.h4 Qd2 28.g3 Rf8 29.f4 Rf7 30.d5 Qb4 31.a3 Qc5+ 32.Kg2 Re7 33.Qg5+ Kg7 34.h5 b5 35.hxg6 h6 36.Qf5 a6 37.c3 Qb6 38.Kh3 Qf6 39.Kg4 Qd6 40.Kh5 Qb6 41.Be4 Qc5 42.Kh4 Qd6 43.Kg4 Qb6 44.Bb1 Qd6 45.Kh5 Qc5 46.g4 Qg1 47.g5 hxg5 |
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