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Later Kibitzing> |
| Apr-14-16 | | EIDorado: I missed 48. ... Rxh4 |
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| Apr-14-16 | | devere: It took me a long time to see 46.Kh2!(the only move), and fortunately for White it works. The game continuation is the key line. If instead 46.Kh2! Qe5+ 47.g3 Bf5 48.Nd3 Bxd3 49.Qxd3 Rd4 50.Re8(only move) Qxe8 51.Qxd4 Qe2+ 52.Kg1 Qe1+ 53.Kg2 Qe2+ 54.Qf2 Qe4+ 55.Kg1 
click for larger viewOnce again Black cannot capture due to checkmate, and White has a decisive material advantage. In fact Black can't even avoid a forced trade of Queens which leaves him in a hopeless King and pawn ending. |
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| Apr-14-16 | | patzer2: After a long look, eliminating several other possibilities, I almost gave up before I settled on 46. Kh2! for my Thursday puzzle attempt. Then, I was able to play guess the move with the game continuation until the final move. Black's decisive mistake was 36...Bd7? allowing 37. Ne4!  (+3.59 @ 18 depth, Deep Fritz 15). Instead, 36...Rxc2  (-0.84 @ 16 depth, Deep Fritz 15) is OK for Black. In the game continuation, White has a difficult win after 46. Kh2 (+2.71 @ 16 depth, Deep Fritz 15). A move earlier, 45. Kh2 (+7.88 @ 18 depth) would have been a much easier win for the first player. |
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| Apr-14-16 | | AlicesKnight: Saw the first part, but failed to see the developments where White shapes the mating net after regaining the rook. I envy this ability to see the "figure in the marble". |
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| Apr-14-16 | | Moszkowski012273: Damn.. Went for the free piece and easy win with 50.Qe4+... and failed to see the MATING 50.Qf4+... |
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| Apr-14-16 | | gofer: This one is a little odd. Black threatens Qe5+ mating and there is only one move that stops that and frees up all white's pieces to attack black's very vunerable king. <46 Kh2 ...>
However, after that there is a "greek gift" for black to foolishly accept. It looks as if black can play... <46 ... Qe5+>
<47 g3 Qxh8>
...but black can't!!!!
<48 Ne4+! Rxe4>
<49 Qxe4 ...>
click for larger viewWhite threatens <50 Qf4+ Kh5 51 Qh4#> and also the reverse move order <50 Qh4+ Kf5 51 Qf4#>! 49 ... Bf5
50 Qh4#
49 ... h5
50 Qf4#
49 ... Qf8/Qf6
50 Qh4+ Kf5
51 Qf4#
49 ... Kf6
50 Qd4+ winning the black queen
<50 ... Qb8!>
<51 Qh4+ Kf5>
<52 Qg4+ Kf6>
<53 Qxd7 >
click for larger viewSo Rh8 is immune, but black has lots of other replies that don't involve the immediate Qe5+. I suppose, as this is only a <Thursday> level POTD, black must have accepted the rook sacrifice. ~~~
Yep! But Yifan found an infinitely better continuation than the "lousy" 48 Ne4+! |
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| Apr-14-16 | | morfishine: I was thrilled to finally decided on <46.Kh2> but thought 47.Qg3+ would trade down to a won ending Very nice finish |
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| Apr-14-16 | | not not: 2 pawns up, white can toy with black
i would play Rf8, just to see what he can do (throw himself on sword probably) followed by king h2 and keep his king on ropes; it is fun when they sweat |
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| Apr-14-16 | | not not: and I would get mated it seems after queen e5
damn tactics |
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| Apr-14-16 | | ndg2: Found 46.Kh2 which is pretty much forced because of threat Qe5+ with mate all the way through 50...Kxh4, but not the followup with 51.Kg3, which is of course the key point of the combination.
From here neither a) 51...g5 nor b) Qc3+ nor c) Qd8 work, because of a) 52.Qf7# or b) 52.Nd3 preventing Qe1+ with mate soon or c) 52.Qf3+ Kg5 53.Ne4#. On the other hand, if black does nothing, white threatens g3 and h4 herself, so 46...Qe5+ is more or less forced. Surprisinlgy deep tactics by Yifan! |
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| Apr-14-16 | | not not: she plays chess like a bloke
is she less? |
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| Apr-14-16 | | WickedPawn: I guess that after 53...Qd8, white goes 54.Ne4 and nothing stops 55.Nf6++ or 55.Qf7++ (on 54...g5). Is this correct? |
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| Apr-14-16 | | LucB: Nice finish. You gotta love moves like 51. Kg3! |
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| Apr-14-16 | | diagonalley: beyond me :-( |
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| Apr-14-16 | | saturn2: Not solved. I noticed that black has the nasty threat..Qe5 and that white's knight should get off the pin, but I did not draw the right conclusions from this. |
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Apr-14-16
 | | Jimfromprovidence: Got through 46 Kh2 Qe5+ 47 g3. That was it.
I peeked and saw 47...Bf5 in a lot of lines. It took a while to figure out why. (It prevents 48 Qf8! as shown in the example 47...Rxa4?? 48 Qf8, below, threatening 49 Qxh6+) 
click for larger viewAfter seeing 47...Bf5, I went back to the puzzle and settled with 48 Kg2. 
click for larger viewAs an aside, in this continuation white has a clever way to try to steal material if black follows with 48...Rxa4. It goes 49 h4+ Kf6 50 Ra8! 
click for larger view |
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| Apr-14-16 | | cocker: 46 Kh2 is White's only move although it seems to be losing a rook. I didn't get it of course. |
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| Apr-14-16 | | The Kings Domain: Got this one after a looooooooong analysis. |
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| Apr-14-16 | | kevin86: This one is far above my pay status. |
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| Apr-14-16 | | AvidChessMan: Once I realized that this puzzle had two parts, I found the solution of first moving the king out of trouble. I did not figure out the second part, but I knew it was there, based on the nature of these puzzles. |
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| Apr-14-16 | | garrido: Who nice play of Yifan Hou. here a one
worldmaster in all your big talent and imagination |
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| Apr-14-16 | | Whitehat1963: Picked up the first move, but I couldn't follow through. |
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| Apr-15-16 | | CHESSTTCAMPS: It looks like a Mexican standoff, with the kings eyeball to eyeball and each army entirely involved in the fight. White's advantage lies in the fact that the white king has a safe haven at h2, but the black king has no legal move. Moving the king reduces control of f4-h4, but frees the both the knight and the g-pawn for active service. 46.Kh2! threatens g3 followed by h4, leaving no satisfactory defense: A. 46... Qe5+ 47.g3 Qxh8 48.h4+ Rxh4 49.gxh4+ Kxh4 50.Qf4+ Kh5 51.Ne4 g5 (otherwise 52.Ng3#) 52.Qf7+ Kh4 53.Qxd7 g4 (otherwise 54.Qh3#) 54.Qf5+ Kh4 55.Nf6 wins. A.1 47... Qf5 48.h4+ Kf6 49.Rf8+ wins the Q.
A.2 47... Rxa4 (/Rc4/Rd4) 48.Kg2! (unpinning g3 pawn) Qxh8 49.h4+ Rxh4 50.gxh4+ Kxh4 51.Qf4+ Kh5 51.Ne4 wins similarly to A main line. B. 46... Rf4 47.Qg3+ Kf5/f6 48.Rf8+ wins.
Time for review.... |
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| Apr-15-16 | | CHESSTTCAMPS: Did not consider Hou's 51.Kg3 in the game continuation, though 51.Ne4 works almost as well. Also should have analyzed 47... Bf5 <Jimfromprovidence> |
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| Apr-15-16 | | cjgone: Missed pawn to g3 to defend the queen attack. Thought it would end up in a perpetual check if you retreated to the back line. |
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Kibitzing
sac: 46.Kh2