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| Dec-12-18 | | stacase: Great Wednesday puzzle. Maybe a little too easy. Having the 2nd Rook waiting to get in on the party was really sweet (-: |
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| Dec-12-18 | | drollere: 32. Qxh6+ gxh6
33. g7+ Kxg7
34. Nh5+ Kh8
35. Rxh6#
when in doubt, sac the queen. |
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Dec-12-18
 | | PawnSac: a beautiful Q sac ! |
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| Dec-12-18 | | ChessHigherCat: Qsac Wednesday. Spectacular but it seems a little easier than usual since it's all forced: 32. Qxh6+ gxh6 33. g7+ Kxg7 34. Nh5+ Kh8 35. Rxh6# |
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| Dec-12-18 | | jith1207: Rarely, I have spotted the combination instantly in a couple of seconds after seeing the position. Pattern recognition, I guess. That for a Wednesday puzzle variety. <stacase>: wouldn't this forced combination have worked just the same without the other rook in g1 as well? |
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| Dec-12-18 | | agb2002: White is one pawn down.
Black threatens Nxf6.
White can deliver mate with 32.Qxh6+ gxh6 33.g7+ Kxg7 34.Nh5+ Kh8 35.Rxh6#. |
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| Dec-12-18 | | saturn2: I took 32. Nf5
32...Qe5 33. Qxh6+ gxh6 34. g7+ Kh7 35. Rxh6#
32..Nxf6 33. Qxh6+ gxh6 34. g7+ Kh7 35. Nxd6+ Bf5 36. Bxf5# 32..Qf4 33. Rxe6 plus puece |
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| Dec-12-18 | | ChessHigherCat: If history repeats itself, now that we've made the mistake of complaining about Wednesday being too easy, tomorrow we'll be treated to "AlphaZero's Immortal", the amazing mate-in-36! |
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Dec-12-18
 | | OrangeTulip: Screaming for a queen sac |
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| Dec-12-18 | | AlicesKnight: It looks like mate in 4; 32.Qxh6+ forces ...gxh6; 33.g7+ Kxg7; 34.Nh5+ (the key to success, supporting the Rf6).... Kh8; 35.Rxh6. Let's see .... yup. |
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| Dec-12-18 | | goodevans: Stockfish reckons <23...Ne3> is losing and gives instead <23...g6 24. fxg6 N6e5> as equal. I agree. Looking at that position I wouldn't want to play either side! |
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| Dec-12-18 | | cocker: Ich bin ein Berliner! |
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| Dec-12-18 | | gofer: <32 Nf5 ...>
White threatens 33 Qxh6+ gxh6+ 34 g7+ Kh7 35 Rh6#, but also threatens Nxd6 winning
the queen, so black only has two sensible defences.. 32 ... Qf4
33 Rxe6 +-
Black's options are very limited!
<32 ... Bxf5>
<33 Rxf5 ...>
White probably cannot take the queen as Bxe4+ seems to make white's job much harder.
Simply taking the bishop continues the attack and forces black to either lose the
knight or move it...
<HOLD IT ONE MINUTE... ...all the above might not be necessary!!!> <32 Qxh6+ gxh6+> <33 g7+ Kxg7>
<34 Nh5+! Kh8>
<35 Rxh6#>
MUCH SIMPLER!!!!
~~~
It seems I am the only one that looked at the wrong solution before seeing the right one... Doh! |
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| Dec-12-18 | | malt: a Nice Queen sac |
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| Dec-12-18 | | Walter Glattke: I like 32.Nf5 Qd8!? (BxN, RxQ) 33.Qxh6+ gxh6 34.g7+ Kh7 35.Rxh6# |
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| Dec-12-18 | | Mayankk: Not too difficult but still feels good to spot it. Especially once you notice how strong Nh5+ is after Kxg7. Nice puzzle. |
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| Dec-12-18 | | patzer2: WhenI see the possibility of a double discovered check, no matter what the material cost in sacrificed material, I can't resist calculating it. In today's Wednesday (32. ?) puzzle, I was initially drawn to the double discovered check 32. Qxh6!! gxh6 33. g7+ Kxg7 34. Nf5+??, but after 34...Kxf6 35. Nxd6 Ke5 -+ (-15.26 @ 24 ply, Stockfish 9) Black turns the tables and wins. Only after exhausting that possibility did I consider the winning follow-up 34. Nh5+! +-, which completes the mate-in-four combination solving today's Wednesday puzzle with 34...Kh8 35. Rxh6#. P.S.: So where did Black go wrong? According to the computer, Black's decisive mistake was 22...Ra7?, potentially allowing 23. g6! Qd6 (23...hxg6 24. fxg6 +-) 24. Bf4 +- (+1.93 @ 31 ply, Stockfish 9). Instead, 22...Ra6! 23. f6 N6e5 24. fxg7 Rxf1+ 25. Qxf1 d3 26. h3 Kxg7 27. Bf4 Qd4 ⩲ to = (+0.28 @ 32 ply, Stockfish 9) gives Black good counter chances.
Earlier, Black had the advantage but missed an opportunity to capitalize on it with the immediate piece capture 20...exd4 ∓ (-1.24 @ 34 ply, Stockfish 9). |
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| Dec-12-18 | | stacase: <jith1207:<stacase>: wouldn't this forced combination have worked just the same without the other rook in g1 as well?> Now that you point it out, yes it would. Once you see the forced route to checkmate, there's no point to looking any further. And I didn't. Thanks for commenting on my post, compared to the political forums I haunt this corner of the web is quite noncommittal. |
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| Dec-12-18 | | patzer2: <gofer> <It seems I am the only one that looked at the wrong solution before seeing the right one... Doh!> You're not alone. I chased the losing rabbit 34. Nf5+ ?? before seeing 34. Nh5+ forcing 34...Kh8 35. Rxh6#. At least the alternative you initially calculated with 32. Nf5 +- (+11.52 @ 32 ply, Stockfish 9) is winning, albeit with more difficulty than the mate-in-four forced with 32. Qxh6+! |
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Dec-12-18
 | | catlover: I tried to find the solution using 32. Nf5.
How about 32. Nf5 Nxf6 33. Qxh6+ gxh6 34. g7+ Kh7 35. Nxd6+ Nxe4 36. g7xR=N+ Kh7 37. Rg8# |
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| Dec-12-18 | | Ceri: <patzer2: <gofer>
At least the alternative you initially calculated with 32. Nf5 +- (+11.52 @ 32 ply, Stockfish 9) is winning, albeit with more difficulty than the mate-in-four forced with 32. Qxh6+!> Stockfish 10 at 38 ply had 32. Nf5 as +66.46!
Cheers,
Ceri |
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| Dec-12-18 | | patzer2: <Ceri> Thanks! Looks like I will need to update my SCID vs PC database from Stockfish 9 to Stockfish 10. |
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| Dec-12-18 | | landshark: Like many of you, I saw the solution to today's puzzle quicker and easier than the last two 'easier' days. In defense of those tougher 'easier' puzzles, I'll just say that they are a lot more like real positions I'd likely see OTB than this beautiful tactical blow in such a wild position. |
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| Dec-12-18 | | ChessHigherCat: <landshark>: If even I can see it in 5 seconds, it's too easy for a Wednesday, although I'm not saying it was uninteresting or not instructive. It must be time-consuming and challenging to choose problems of the right difficulty for each day of the week. What do you think of my idea of awarding a lifetime membership to one of the many master CG members to choose the GOTD. I don't think that's excessively generous since an annual membership fee is only $35 or so, which isn't even a decent hourly wage. Plus, since the GOTD is a major attraction to most visitors of the site, having a properly calibrated puzzle would increase overall revenues by recruiting new members/preventing defection. |
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| Dec-13-18 | | Ceri: Stockfish 9 claimed mate in 40 for 32. Nf5 at 38 ply and settled down to mate in 34 at 45 ply |
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