|Aug-02-17|| ||Phony Benoni: Just looking for something to do, you spot 25. .Rxd4 26.cxd4 Bxd4+ forking on a1. But after 27.Kh1 Bxa1 28.Rxa1 that's just a pawn. Not so impressive.|
Until you stop thinking automatically and see that 27.Kh1 allows 27...Qh4#. Therefore White has to play 27.Bxf2 and the rook on a1 falls for free. That's a piece. Much better.
|Aug-02-17|| ||Walter Glattke: 27.Rf2 Bxf2+ 28.Kxf2 Qxb4 2 pawns|
|Aug-02-17|| ||ChessHigherCat: 25...Rxd4 26. cxd4 Bxd4+ If 27. Kh1/h2 then 27...Qh4 and curtains. If 27. Rf2 then Bxa1. Time to checkydoubt maan|
|Aug-02-17|| ||Walter Glattke: Not Qxb4 29.Qxf7|
|Aug-02-17|| ||shishio71: 25...Rxd4! 26.cxd4 Bxd4+ 27.Rf2 Bxa1. For a while I thought I could trap the queen with a 27...Be3 line but to no avail|
|Aug-02-17|| ||FSR: What <ChessHigherCat> said. And what <PB> said apart from his typo.|
|Aug-02-17|| ||patzer2: For today's Wednesday puzzle, the obvious 25...Rxd4 26. cxd4 Bxd4+ is clearly decisive, especially after 27. Kh1 Qh4#.|
White's decisive mistake appears to be 24. Ng4?, which allows 24...Ng4 25. Bxg7 Kxg7 26. hxg4 Ne5 (-2.09 @ 31 depth, Stockfish 8.)
Instead, White holds the position after the computer suggestion 24.Rad1 Qg5 25.Qxg5 hxg5 26.Bb3 Kg8 27.Ne2 Rd6 28.Bxe5 Rxd1 29.Rxd1 Nxe5 30.Nd4 Bf6 31.a4 c6 32.axb5 cxb5 33.Kf2 Kg7 34.Bd5 Re7 35.Nhf3 Rc7 36.Nxe5 Bxe5 37.Rd3 Rxc3 38.Rxc3 Bxd4+ 39.Re3 Kf6 40.e5+ Kg7 41.Kf3 Bxe3 42.Kxe3 f5 44. exf6 Kxf6 = (0.00 @ 43 depth, Stockfish 8.)
|Aug-02-17|| ||al wazir: This 1800 player chooses to fall on his sword rather than play on a piece down. Rather noble.|
|Aug-02-17|| ||agb2002: The material is identical.
White threatens Qxf7.
The bishop on g7 x-rays the rook on a1. This suggests 25... Rxd4:
A) 26.cxd4 Bxd4+ 27.Rf2 (27.Kh1(2) Qh4#) 27... Bxa1 wins a piece (28.Qxf7+ Qxf7 29.Rxf7+ Kg8 30.Rxc7 Bxg4).
B) 26.Qxf7 Qxf7 27.Rxf7 Rd2 (27... Kg8 28.Rxg7+ Kxg7 29.cxd4) - + [b vs P].
|Aug-02-17|| ||saturn2: 25..RxB wins a bishop for free. I think it is better for white not to retake 26 cxR|
|Aug-02-17|| ||AlicesKnight: Saw the 25...Rxd4 exchange sacrifice and line. Black must just ensure against any K-side looseness after the a1 capture.|
|Aug-02-17|| ||whiteshark: <25...Rxd4>, and that's it.|
|Aug-02-17|| ||malt: 25...R:d4 26.cd4 B:d4+ wins
|Aug-02-17|| ||gofer: The start is pretty obvious...
<25 ... Rxd4>
It is difficult to see how white can simply give up the bishop, but
it may be white's best choice. Its losing, but may be losing more slowly
than accepting (i.e. 26 Qxf7 Rd7 27 Qxe7 Rdxe7 28 Rad1 29 Bxc3 )
<26 cxd4 Bxd4+> (Kh1/Kh2 28 Qh4#)
<27 Rf2 ...>
click for larger view
At this this point black may need to be a little careful, I am not sure that the immediate gain of a whole bishop is black's best option (i.e. 27 ... Bxa1 28 Qxf7+ Bg7 29 e5 Nxe5 30 Qxe7 Rxe7 ). Instead, perhaps, we should stop all of white's chances at a counter attack first?!
At this point, I looked at <27 ... g5> - which is a complete disaster due to <28 e5+! > winning for white! <27 ... Nd5> looks complicated!
Perhaps <27 ... Bxa1> is simplest after all...
What does <Fritz> say!?
|Aug-02-17|| ||Lambda: The combination is pretty simple, but I think you need to check white possibilities for counter-attacks after 25... Rxd4 and the eventual 27... Bxa1 before reaching your conclusion for this one. It's basically a piece snatch.|
However, there aren't any convincing counter-attacks to be had.
|Aug-02-17|| ||Willber G: <Walter Glattke: 27.Rf2 Bxf2+ 28.Kxf2 Qxb4 2 pawns>|
27.Rf2 Bxa1 wins a bishop and a pawn, although 29.Qxf7+ gets a couple of pawns back for black.
|Aug-02-17|| ||takchess: Free Piece Wednesday ? Either a free Bishop or a Bishop,a Pawn and a Rook for a Rook.
> 25...rxd4 and if white takes with pawn,Bishop x d4+ . White must block with the Rook as a King move to h1 leads to whites queen h4 mate. with a Rook f2 Bxa1(free rook)Its unclear to me whether an additional check wins an exchange but I think not.|
|Aug-02-17|| ||zb2cr: If you start looking for trouble, you can easily spot 25. ... Rxd4. If White replies 26. cxd4, then 26. ... Bxd4+ forks the Rook at a1, while if White plays 27. Ka1??, Qh4#. So
White has to give up a piece, along the lines suggested by <PhonyBenoni>, <agb2002> and <gofer>.|
|Aug-02-17|| ||WorstPlayerEver: 27. Rf2 Ba1 28. Qf7 Qf7 29. Rf7 Kg8 30. Rc7? Be5 maybe I missed something..|
|Aug-02-17|| ||Rama: Heh, thought it said white-to-move and could find nothing!|
|Aug-02-17|| ||docbenway: Too easy.|
|Aug-02-17|| ||drollere: black had to play Rf2. i was figuring out the variations after that move. Kh1 was too obviously fatal.|
|Aug-02-17|| ||swclark25: Got it, but Black's job was easier based on White's responses.|
|Aug-02-17|| ||Longview: I see that black can trap the King but not in a forcing way particularly. 25...Rxd4 26. cxd4 Bxd4+ 27. Kh8 Qh4++|
If 27. Rf2 Bxa1 28 Qxf7+ Bg7 and Black is up a Bishop!
|Aug-03-17|| ||stst: Overdue...
then BxP+ to start...see what...