Aug-26-23
 | | chrisowen: Ruffle bow it is z von dip mucked it is Bxb3 a cat mat cub... |
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| Aug-26-23 | | mel gibson: I'm proud of myself -
I spent a good 3 minutes analyzing that position
and I came up with the right answer - it wasn't easy.Stockfish 16 says:
35. .. Bxb3
(35. .. Bxb3 (Bf7xb3 c2xb3 Qd7-b5 Kb1-c2 Rh8xh2+ Rg1-g2 Rh2xg2+ Qf3xg2 Rc7xg7 Qg2-f1 Qb5-a5 Kc2-d1
Bf8-a3 Bc1-h6 c3-c2+ Kd1-e2 Qa5-c3 Rf6-f7 Qc3-b2 Bh6-c1 Rg7xf7 Bc1xb2
Rf7xf1 Bb2xa3 c2-c1Q Ba3xc1 Rf1xc1 Ke2-f2 Rc1-d1 Kf2-g3 Rd1xd3+ Kg3-g2
Rd3-c3 b3-b4 Ka7-b6 Kg2-g1 Kb6-b5 Kg1-f1 Kb5xb4 Kf1-f2 Rc3-e3) +32.75/39
624)
score for Black +32.75 depth 39. |
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| Aug-26-23 | | daladno: I found the general path with key moves of Bxb3, Bxc2 and c3-c2 - half credit, I believe, not my typical Saturday's feat. What is really amazing is how White has drawn almost all pieces away from its King for some unclear reasons. I can't understand the ojective of White's activity on K-side - possibly the promotion of "h" pawn was his hope. What actually happened is his King left along with a single helpless Bishop vs. Black's army, with predictable results. |
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| Aug-26-23 | | agb2002: Black has the bishop pair for a bishop, a knight and a pawn. The knight is defenseless and the position of the white king invites to play 35... Bxb3: A) 36.cxb3 Qb5
A.1) 37.Ne6 Qxb3+ 38.Ka1 Qa4+ 39.Kb1 c2+ 40.Kb2 Qa3#. A.2) 37.Kc2 Rxh2+
A.2.a) 38.Kd1 Qxb3+ 39.Kb1 Qc2 is winning.
A.2.b) 38.Rg2 Rxg2+ 39.Qxg2 Qxd3+ 40.Ke1 Rxg7 41.Rg6 (41.Qh1 Bb4 42.Kf2 Qc2+ 43.Kf3 Bc5 looks winning) 41... Rxg6 42.Qxg6 Bb4 looks winning (43.Kf2 Qc2+). A.3) 37.Rxf8 Qxb3+ 38.Ka1 c2 39.Bb2 (39.Bg5 Qa3#) 39... Qa4+ 40.Ba3 Qxa3#. A.4) 37.Qd1 c2+ wins decisive material.
A.5) 37.Ka2 Qa5+ 38.Kb1 c2+ 39.Kb2 Qa3#.
B) 36.Rxf8 Bxc2+
B.1) 37.Kxc2 Qa4+ 38.Kb1 Qb3+ 39.Ka1 Rc5 and mate soon. B.2) 37.Ka2 Qa4+ 38.Ba3 Qb3+ 39.Ka1 Qxa3#.
C) 36.Ne6 Bxe6 37.Rxf8 Qb5+ and mate in four.
D) 37.Qf2 Bxg7 38.cxb3 Bxf6 39.Qxf6 Rxh2 is winning. |
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| Aug-27-23 | | Brenin: Curious opening strategy by White, taking six of his first eighteen moves to shift his Q from d1 to e1. He then leaves his K almost undefended on b1, with most of his forces attacking nothing in particular on the K-side, while cut off from the K by the pawn chain. 35 ... Bxb3 is a clear win, but for anyone who prefers to sacrifice his opponent's pieces, 35 ... Rg8 is a safe alternative, threatening to win the N on g7; if 36 Bh6 then White's K is even more vulnerable to Bxb3. |
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Aug-27-23
 | | al wazir: <Brenin: 35 ... Bxb3 is a clear win, but for anyone who prefers to sacrifice his opponent's pieces, 35 ... Rg8 is a safe alternative>. Is it? 36. Ne8 Rxg1 (36...Qxe8 37. Rxg8 Bxg8 38. Rxf8) 37. Nxc7 Qxc7 (37...Rg7 38. Nd5) 38. Rxf7. |
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Aug-27-23
 | | An Englishman: Good Evening: First time since the move to two puzzles/day that one of my answers deserves only a half credit--finishing the week with a score of 11.5/14. Still, better than average, so as Johnny Clegg sang, "Be happy with the small things that come to you." See you on Monday. |
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| Aug-27-23 | | King.Arthur.Brazil: Sac not captured: 35...Bxb3 36. Rxf8 Qa4 37. cxb3 Qxb3+ 38. Ka1 c2 39. Bb2 Rxf8 40. Qxf8 Rc6 41. Rc1 Ra6+ 42. Ba3 Rxa3+ 43. Qxa3+ Qxa3#. Otherwise: 35...Bxb3 36. cxb3 c2+ 37. Kb2 Bb4 38. Rg2 Qb5 39. Qe2 Qa5 40. Qxc2 (40. Bd2 Qa3# ) Qa3+ 41. Kb1 Rxc2 42. Rxc2 Qxb3+ 43. Rb2 Qxd3+ (44. Rc2 Rxh2) 44. Ka1 Bc3 45. Rb6 Rxh2... game over. There are other moves, but W is in bad shape after all. |
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| Aug-27-23 | | King.Arthur.Brazil: I still preferred 36...Qa4 since it reaches the same position early: 37. cxb3 Qxb3+ 38. Ka1 c2... Some could say that W could try to escape with: 37. Bb2 Bxc2+ 38. Kc1 cxb2+ 39. Kd2... This is untrue, because B must reply: 37... cxb2 38. cxb3 Qa1# or 38. Kxb2 Rxc2+ 39. Kb1 Qa2#. Also 37. Ba3 Qxa3 38. cxb3 Qb2#. After 38... c2 (or 39... c2) 39. Bb2 Qa4+ 40. Ba3 Qxa3#, of course. |
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| Aug-27-23 | | Brenin: <Al Wazir>: After 35 ... Rg8 36 Ne8 Rxg1 37 Nxc7, Black wins with 37 ... Ba3, e.g. 38 Rxf7 Rxc1+ 39 Ka2 Bb2 with mate in a few moves. |
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| Aug-27-23 | | Allderdice83: 36 ... Bxc2+! is a forced mate, but 36 ... Qa4 works as well. The threat of mate with 37 ... Qa2# can't be stopped, only put off. 37. cxb3 Qxb3+ 38. Bb2 Qxb2#, or 38. Ka1 Qa4+ 39. Kb1 c2+ 40. Kb2 Qa3#. 37. Ba3 Qxa3 38. cxb3 c2#, or any other 38., eg. 38. Qd1 Qa2+ 39. Kc1 Qa1# |
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| Aug-27-23 | | Allderdice83: White should clearly take the bishop right away with 36. cxb3. After 36 ... Qb5 37. Kc2 Rxh2+ 38. Kd1 Qxb3+ 39. Ke1 (<agb2002> I think you meant this and not Kb1 which is impossible) Ba3. 39 ... Qb1 40 Rxf8 c2! (not Qxc1+? 41. Qd1) 41. Rg2 Qxc1+ 42. Kf2 Qd2+ wins ... ... but I like 39 ... Ba3 better.
40. Bxa3 Qb1+ 41. Qd1 c2 wins
40. Rg2 Rh1+ 41. Kf2 Bxc1 42. Ne6 Be3+, and Black should win easily. |
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| Aug-27-23 | | Allderdice83: <Brenin: Curious opening strategy by White, taking six of his first eighteen moves to shift his Q from d1 to e1. He then leaves his K almost undefended on b1, with most of his forces attacking nothing in particular on the K-side, while cut off from the K by the pawn chain.> Yeah, this is a team championship match, so presumable White is a strong player, but he plays really foolishly from move 3 on. Most if fianchettoing, play 3. g3. 3. g4 sets White up to have the queen knocked around by Nf6 sooner or later. It also means White can't castle kingside. But definitely, after 8 ... Nf6, 9. Qe2 looks far superior to 9. Qg3 |
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Kibitzing
sac: 36...Bxc2+