Feb-28-14
 | | An Englishman: Good Evening: Quite a final position--the only move that prevents 40.b8/Q is 39...Qa8. |
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Feb-28-14
 | | Jimfromprovidence: I have 35 Rxd5 exd5 36 Bxe5+.
click for larger view |
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| Feb-28-14 | | Cheapo by the Dozen: It looks to me like 35 Rxd5 works.
One line is:
35 Rxd5 Rxb3
36 Rxd8 Qh4/Qh6
37 Bc5 g6
White winds up with rook and 2 bishops vs. queen, plus 1 or more pawns, plus an attack whose short-term outcome I haven't worked through. Another is:
35 Rxd5 exd5
36 Bxe5+ Kh8
37 Bxa8 Rxb3
38 Rxd8 Rb1+
39 Be1
I think with best play White winds up 2 pieces ahead, as the Bd5+ threat makes it awkward for Black to ward off backrank mate. Black's best line may be:
35 Rxd5 exd5
36 Bxe5+ Rxd5
37 Qxd5+
But White seems to wind up ahead at least 2 pawns, after each player handles his respective backrank dangers. |
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| Feb-28-14 | | agb2002: White has the bishop pair and a pawn for a bishop and a knight. Black threatens 35... Rxb3.
The black queen protects the rook on a3. This suggests 35.b7: A) 35... Rxb3 36.bxa8=Q Rxa8 37.Rxd5 exd5 38.Bxd5+ Kh8 39.Bxb3 + - [B+P]. B) 35... Qa7 36.Rxd5
B.1) 36... Rxb3 37.Bxa7 exd5 38.Bxd5+ Rxd5 (38... Kh8 39.Bxb3 + -) 39.Rxd5 followed by b8=Q. B.2) 36... Qxf2+ 37.Kxf7 Rxb3 38.Rxd8 followed by b8=Q. B.3) 36... exd5 37.Bxa7 Rxb3 transposes to B.1.
C) 35... Qa6 36.Bxd5
C.1) 36... Rxb3 37.Bxe6+ Qxe6 (37... Kh8 38.Rxd8 threatening 39.Rxf8# and 39.b8=Q) 38.Rxd8 followed by b8=Q. C.2) 36... exd5 37.b8=Q Rxb8 (37... Rxb3 38.Qxd8) 38.Qxd5+ Kh8 39.e6 with the threats e7 and Rh4-Qf5 looks very good for White. D) 35... Qa6 36.Rxd5
D.1) 36... Rxb3 37.Rxd8 Qxb7 38.Bxb7, etc.
D.2) 36... Rxd5 37.Qxd5 exd5 38.b8=Q + - [B].
D.3) 36... exd5 37.Qxd5+ Rxd5 38.Bxd5+ Kh8 39.b8=Q + - [B+P]. |
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| Feb-28-14 | | agb2002: I missed the intermediate 37... Rxf3 in my line A.
The text 35.Rxd5 seems to be much better. |
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| Feb-28-14 | | diagonalley: looked at 35. RxN ... but found it too complex to analyse :-( |
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| Feb-28-14 | | Nick46: Fascinating finish. I missed the lot (so, what else is new?). |
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| Feb-28-14 | | mel gibson: Checked on DR4 64 bit.
The more natural 35 Qc2 to protect the
white Queen still works -
it just takes longer to checkmate.
It goes:
35 R-a1 RxR
36 QxR R-d1
score for white = 2.94 depth 16
The computer chose the published move.
35 RxN
score for white = +9.42 depth 18 |
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| Feb-28-14 | | schachfuchs: @Jimfromprovidence
me too ;-) seems also winning, however not so elegant?! 35 Rxd5 exd5 36 Bxe5+ Rxd5 37 Qxd5+ Qxd5 38. Rxd5 and what now?
38 ... Ra1+ 39 Be1 Rxe1+ 40 Kf2 - b6 seems unstoppable
38 ... Ra8 39 Rxb5 |
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| Feb-28-14 | | AnotherNN: I rather like my own attempt: 35.Bxd5 Rxb3 36.Bxe6+ Kh8 37.Rxd8 Qxd8 38.Rxd8 Rb1+ 39.Be1 Rxe1+ 40.Kf2 and Black is totally lost. |
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| Feb-28-14 | | clement41: Amazing position.
Look at the a2-g8 and a8-h1 diagonals!:Huge bishop fork potential.
Reminds me of Tal-Brinck Claussen somewhat.
E.g such fork occurs in the line: 1Rxd5! ed 2 b7 Rxb3? 3 ba=Q Rxa8 Bxd5+ Kh8 and choose your rook! White's up a piece. |
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| Feb-28-14 | | chessiya: there are many lines for white to win as white will finally queen his b pawn
here is one of those
35. Rxd5 exd5 36. Bxd5+ Qxd5 37. Qxd5+ Rxd5 38. Rxd5 Ra1+ 39. Be1
Rxe1+ 40. Kf2 Rb1 41. Rd8 Rb2+ 42. Ke3 Rb3+ 43. Kd2 Kf7 44. b7 Be7 45. Rd7 Rxb4
46. b8=Q Rb2+ 47. Kc3 |
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Feb-28-14
 | | paulalbert: Looked at Rxd5 and b7. Didn't work out combining the ideas the way Ljubo did in the game. |
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| Feb-28-14 | | haydn20: How good are these guys? Ljubo must have worked this out before playing 34. Red1 or likely even before 33. cxb6. I spent a half hour trying to work out 35. b7 before giving up! |
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| Feb-28-14 | | patzer2: < AnotherNN: I rather like my own attempt: 35.Bxd5 Rxb3 36.Bxe6+ Kh8 37.Rxd8 Qxd8 38.Rxd8 Rb1+ 39.Be1 Rxe1+ 40.Kf2 and Black is totally lost.> I too like 35. Bxd5!, as it was also my solution to this Friday puzzle. After 35.Bxd5! Rxb3? 36.Bxe6+ Kh8 37. Rxd8  (diagram below), 
click for larger viewFritz 12 indicates White has mate-in-19.
Black puts a bit more resistance with 35. Bxd5! exd5 (diagram below). 
click for larger viewFrom there, after 36. Qc2 (diagram below),
click for larger viewWhite has a clear winning edge. Fritz 12 gives White over a 4 pawn advantage after 35. Bxd5!exd5 36. Qc2 (+4.42@ 21/48 depth). P.S.: The computer rates 35. Rxd5! as stronger than 35. Bxd5!(i.e. about seven pawns plus for 35. Rxd5! versus four pawns plus for 35. Bxd5!). Even so, 35. Bxd5! is clearly a winning alternative. |
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| Feb-28-14 | | Vermit: White is better after his 30th move but I can't help feeling Black underestimated the danger. 30...Kh8 would have been a safer move. |
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| Feb-28-14 | | kevin86: White will queen: no ifs ands or buts about it. |
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| Feb-28-14 | | MiCrooks: After Rxd5 exd5 b7 is cute but I like the positions stemming from Bxd5+ better. Both work but no real thought is required in the latter variations as they are forcing. The resulting positions with the b6 pawn ready to march forward are simple wins. An IM friend of mine used to say "less lightning safer playing field" to describe these sorts of situations. Bxd5+ forces the trade off of most of the pieces into a totally won position. |
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Feb-28-14
 | | Penguincw: I have 35.Bxd5 Rxb3 36.Bxe6+ Kh8 37.Rxd8, which would be winning, but I don't know what I'm missing. |
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| Feb-28-14 | | PJs Studio: Love 36.b7! Lubo! |
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| Feb-28-14 | | thegoodanarchist: What a bad-ass combo by Ljubomr!! Nice game, sir! |
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| Mar-01-14 | | morfishine: 35.Rxd5 and 35.Bxd5 seem both to be winning |
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Kibitzing
sac: 35.Rxd5