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Feb-10-16
 | | gawain: Black needs to clear the diagonal so that his bishop can help cause trouble on a1 and b2. So 28...Rxf5 (which also removes a defender of the c2 square) 29 gxf5 Na3 and White's goose is cooked. Not 30 bxa3 because of 30...Qc3 followed by mate and not 30 Ka1 because of 30...Qxc2 and White is mated after either 31 [B moves] Qxb2# or 31 [any other piece moves] Qb1# |
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| Feb-10-16 | | dfcx: Material is even.
White attacking the queen, but black can turn the tables around with 28...Rxf5 29.gxf5 Na3+
A. 30.bxa3 Qc3
white can stop mate only by 31.Rd4 Bxd4 32.Qxd4 Qxd4 leaving white with a bishop against queen. B. 30.Ka1 Qxc2 with Qb1 mate next, if white moves the bishop Qxb2 mate. So the best option for white is to refuse the rook, and accept the lose of bishop. |
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Feb-10-16
 | | al wazir: Right idea, wrong move order: 28....Na3+ 29. bxa3 Rxf5 30. Bb2 (30. gxf5 Qc3) Bxb2 31. gxf5 (31. Kxb2 also saves white) Qc3 32. Qa8+ Kh7 33. Qc6. |
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Feb-10-16
 | | patzer2: Found today's Wednesday solution 28...Rxf5 29. gxf5 Na3+  easy enough.Black's losing move was 28. Bxf5?? (-14.16 @ 28 depth, Komodo 9.02). Instead, 28. Bxc4 = (0.00 @ 28 depth, Komodo 9.2) holds it level. |
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| Feb-10-16 | | diagonalley: after 28.... RxB, it's a woo-hoo wednesday!... (black homing in on the long diagonal) |
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Feb-10-16
 | | agb2002: Black has a bishop and a knight for the bishop pair. White threatens 29.Bxc8.
The bishop on f5 protects c2, controls the black king escape square h7 and is about to capture the black queen. The black rook blocks the bishop. These details suggest 28... Rxf5 29.gxf5 Na3+: A) 30.bxa3 Qc3 31.Rd4 (else Black delivers mate soon) 31... Bxd4 32.Qxd4 Qxd4 - + [Q vs B]. B) 30.Ka1 Qxc2 and mate in three. |
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| Feb-10-16 | | lost in space: Got it.
28...Rxf5 29. gxf5 Na3+
Either 30. bxa3 Qc3 with mate
or 30. Ka1 Qc2 with either mate on b1 or b2 - depending on white’s answer. Be aware that here 31. bxa3 is not possible as the b2 pawn is pinned from Bf6. So white has a few checks with the queen before he gets mated. |
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| Feb-10-16 | | gofer: I was wondering whether move order matters in this position?! Does it matter if
we play Na3+ before Rxf5? The answer is yes!
28 ... Na3+
29 bxa3 Rxc5
30 Qe3
The queen comes back for white to fight on, without that much of a loss of face
or material.
<28 ... Rxf5>
29 gxf5 Na3+
30 bxa3 Qc3 (Ka1 Qxc2 mating)
31 Qd4/Rd4 Bxd4
32 Rxd4/Qxd4 Qxd4
click for larger viewSo white cannot accept and must go a whole bishop down. The correct reply is probably something like ... <29 f3 Rf3 >
click for larger view~~~
Yep... |
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| Feb-10-16 | | morfishine: After two forcing moves, White can resign: First <28...Rxf5> then after 29.gxf5 <29...Na3+> After 30.bxa3 <30...Qc3> White has to toss massive material to avoid instant mate ***** |
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| Feb-10-16 | | saturn2: Rxf5 followed by Na3+ was not difficult to find. |
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| Feb-10-16 | | Kasparov Fan: The fact that black's weak back rank will not allow any passive queen move is the first hint in this position so Rxf5 I think is the only move and after gxf5 there is no other way than going forward with Na3+bxa3 allows Qc3 and its game over. |
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| Feb-10-16 | | CHESSTTCAMPS: Material is roughly even, with white having the bishop pair. All of black's pieces are positioned to contribute to an attack, but white's queen is not contributing to defense. White threatens 29.Bxc8. The natural candidate move eliminates this threat, gives the black king a flight square, and opens up the attacking diagonal for the bishop. 28... Rxf5! Three birds with one stone.
A. 29.gxf5 Na3+! 30.Ka1 Qxf2! 31.B moves (otherwise 31... Qb1#) Qxb2# A.1 30.bxa3 Qc3 31.Rd4 (Qb8+ Ka7 uses the vital flight square and white has no more checks) Bxd4 32.Qxd4 is the only way to avoid Qa1# B. 30.b3 (otherwise black remains a piece up) Rf2 31.bxc4 Qxc4 and the double threat of 32... Qxc2+ and 32... Qc3 wins. It's easy to win when given the odds of a queen. |
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Feb-10-16
| | patzer2: Black's set up move 27...Qb8 (diagram below)
click for larger viewmade 28. Bf5?? far too tempting for White. The reality that White had to no more than equality with 28. Bxc4 = or 28. Rf1 = eluded White because he did not anticipate or accurately calculate 28...Rxf5! . I suspect Black saw the possibility when he played 27...Qb8, inviting White to go wrong with 28. Bf5?? |
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Feb-10-16
 | | LucB: Very nice combo! |
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Feb-10-16
 | | kevin86: The rook sac sets up a mean attack! |
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| Feb-10-16 | | LIzzard: Nice finsih - I had to put it on the interactive screen to get it though... |
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| Feb-10-16 | | The Kings Domain: Good puzzle, I like the combination of this one. |
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Feb-10-16
| | transpose: Wednesday may be my favorite day of the week, puzzle-wise. |
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| Feb-10-16 | | stst: Looks like an ambiguous orientation, but... well hidden, and, by a wild imagination, it should end in a "smothered" mate, by the N.
White threatens back rank check by Q and h7 guarded by the B, so have to remove this B first, a R-sac is in order: 28...........RxB
29.gxR (obvious, else Black got all the advantages) Now here's the thing, if QxP, it will spoil the party.... so get the mating net kicked off.... Na3+! IF(A)
30.bxa3 then Qc3 and no rescue to Qa1#, as no one is nearby to guard it, if
31.Bb2, then Qxb2# so Bb2 is redundant.
IF(B) <---- NOW the real show!!
30.Ka1 Bxb2+
31.Bxb2 Qxc2
32.Rc1 (only remaining force to drive out anything?!) Qb1+!! (THE CRUX OF THE SHOW!!)
33.RxQ - only thing left, but alas... the FINAL Pearl of the Show..... Nc2# SMOTHERED.... as envisioned by some very obscured and totally guess work..... If all said is non-sense, then... the show is really spoiled.... |
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| Feb-10-16 | | Cheapo by the Dozen: Sweet.
First I looked at ... Rxf5, but didn't see anything.
Then I found ... Na3+. ... Rxf5 seemed to be irrelevant. Then I quickly realized that starting with ... Rxf5 was necessary after all. :) |
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| Feb-10-16 | | Herma48852: Remove the defender:
28... Rxf5 29gxf5 Na3+ 30.bxa3 Qc3 and mate next or 30. Ka1 Qxc2 and again mate next. |
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| Feb-10-16 | | drleper: <stst: IF(B) ---- NOW the real show!! 30.Ka1 Bxb2+ 31.Bxb2 Qxc2 32.Rc1> Black needs to keep that bishop for its mating threat. After 30...Bxb2? 31.Bxb2 Qxc2 white has 32.Bxa3 and black ends up taking a perpetual. 30...Qxc2 is not as fancy, but it forces the mate. |
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| Feb-10-16 | | Patriot: Nice puzzle! |
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Feb-10-16
| | MichaelJHuman: I got it, but was not sure of all the lines. I presumed that if pawn takes knight, queen comes to c3, with some followup by the bishop. |
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| Feb-11-16 | | frixchess: 28... Rxf5 to open's bishop's way and to remove the defender on f5 then 29. Na3!
If black plays 29...bxa3 then 30. Qc3
The queen on c3 square will be unstoppable. |
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Kibitzing
sac: 28...Rxf5