|
< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
| Aug-28-20 | | Walter Glattke: 35.Qb2 Qd3+ 36.Kf2 Rxd1 37.Nxd1 Bxd1 38.Bb5 |
|
| Aug-28-20 | | Brenin: 30 Rc1 begs to be played, since Bxc1 allows 31 Qe1 mate. If 30 ... Nc3 then 31 Qd4+ Kf1 32 Bxb3 gains material, with a won ending. |
|
| Aug-28-20 | | Cheapo by the Dozen: Rarely do I nail a Friday puzzle so completely. It's easy to see that the rook is poisoned at c1 and that Black has an easy path to material parity. It wasn't that hard to see further that .... Bxb3 is a sham sacrifice that successfully diverts White's queen from d2. From there, it's opportunism, and the opportunity turns out to be very rich. |
|
| Aug-28-20 | | malt: 30...Rc1 31.Nc3 Qd4+ 32.Kf1
(32.Kh1 Q:c3 32.Kg1 R:d1+ 33.Kf2 R:d2+ )
32...B:b3 33.Q:b3
(33.Qb2 Bc4+ 34.Ne2 R:d1+ 33.Be1 Q:b2 )
33...Q:d2 and 34...R:c3 |
|
| Aug-28-20 | | Pedro Fernandez: My quick analysis:
30...f6 31. f4 Qd4+ 32. Kf1 Kf7 33.Be2 Rh8 34. h3 Bxg2+ 35. Kxg2 Qd5+ 36.Bf3
Qf5 37. Bg4 Qg6 38. b4 f5 39. Qb3 fxg4
40. Kf1 Rxh3 41. Qd1 Qd3+ 42. Qe2 Rh1+
43. Kf2 Rh2+ -+ |
|
| Aug-28-20 | | mel gibson: Damn - I was blind to the easy checkmate if
White takes the Rook with the Bishop -
Queen to e1 mate.
Stockfish 11 says:
30... Rc1
(30. .. Rc1
(♖c8-c1 ♔g1-f2 ♖c1xd1 ♕a2-c2 ♕e5-d4+ ♔f2-e2 ♖d1-g1 ♕c2-c8+ ♔g8-h7 ♕c8-c3
♕d4-h4 ♕c3-e5 ♗d5xb3 ♔e2-e3 ♖g1xb1 ♗d2-c3 f7-f6 ♕e5-e4+ ♕h4xe4+ ♔e3xe4
♖b1-g1 g2-g3 ♖g1-g2 f3-f4 ♖g2xh2 ♔e4-e3 ♗b3-d5 g3-g4 ♖h2-h3+ ♔e3-d2 ♖h3-h4
g4-g5 ♖h4xf4 g5xf6 g7xf6 ♗c3-b4 ♖f4-f2+ ♔d2-c3 ♔h7-g6 ♗b4-e7 ♖f2-f3+ ♔c3-d4
♖f3-f4+ ♔d4-e3 e6-e5 ♗e7-d6 b6-b5 ♗d6-b4 ♖f4-f3+ ♔e3-d2 e5-e4 ♔d2-c2 f6-f5
♗b4-c3 f5-f4 ♔c2-b2 ♖f3-f2+ ♔b2-c1) +10.11/42 182) score for Black +10.11 depth 42 |
|
| Aug-28-20 | | goodevans: <28.Rxc4?> was a bad mistake to make at this level. Nisipeanu chose the most elegant way to win but even the routine <29...Bxa2 30.Rxe8+ Kh7> is winning for black as white's loose pieces and exposed K mean he can't prevent black winning at least a piece. |
|
| Aug-28-20 | | Walter Glattke: Black seems to have a pawn more only in the match, if 33.Qb2 instead of 33.Qxb3 is played, I had wrong move numbers above, and could find no win way there. |
|
| Aug-28-20 | | Cellist: To Walter Glattke: After 33. Qb2, just do 33. ... Bc3+, and queen loss and mate not much later are unavoidable for white. |
|
Aug-28-20
 | | Diademas: < Cellist: To Walter Glattke: After 33. Qb2, just do 33. ... Bc3+, and queen loss and mate not much later are unavoidable for white.> 33...Bc4+ I suppose. |
|
| Aug-28-20 | | Cellist: Yes, 33 ... Bc4+. Sorry |
|
| Aug-28-20 | | thegoodanarchist: Maybe a better pun would be "The Sandipan Can't" |
|
| Aug-28-20 | | TheaN: Wow. I played the game line (which is, really, not that difficult to see once you spot the mate on e1) up till 32.Kf1, but followed it up with <32....Rc3?!<>>, assuming that actually wins material, but after <33.Bxc3 Qxd1 34.Kf2 ⩱<>> Black wins b3, but with opposite bishops, Black would have let the game fizzle out in the closing combination. Blindness, I guess. Bxb3 does what I actually intended, put too much pressure on <all> White pieces. |
|
| Aug-28-20 | | drollere: agree with others: once you see the white QB is toothless to defend both c1 and e1, the moves are almost automatic. |
|
| Aug-28-20 | | agb2002: Black has a rook for a bishop and a knight.
The white pieces become overloaded after 30... Rc8 31.Nc3 Bxb3: A) 32.Qxb3 Qd4+
A.1) 33.Kf1 Qxd2 wins decisive material. For example, 34.Qxb6 Rxc3 35.Qd8+ Kh7 36.Qh4+ Kg6 37.Qg4+ Kf6 38.Qh4+ Ke5 39.Qg3 Kd5 wins. A.2) 33.Kh1 Qxd2 is even worse due to back rank mate threats. A.3) 33.Be3 Qxe3+ 34.Kf1 (34.Kh1 Rxc3 wins) 34... Rxc3 35.Qa4 Rxa3 36.Qc2 Qd3+ with a won ending. B) 32.Qb2 Qd4+
B.1) 33.Kf1 Bc4+ 35.Ne2 (35.Ke1 Qg1#) 35... Rxd1+ 36.Be1 Qxb2 wins decisive material. B.2) 33.Kh1 Rc2 34.Bxc2 (34.Qxb3 Qxd2 35.Qxc2 Qe1#) 34... Qxd2 35.h3 (35.Qxb3 Qe1#) 35... Qxc2 36.Qxc2 Bxc2 and the ending with bishop+pawn versus knight and pawns on both sides looks practically won for Black. B.3) 33.Be3 Qxe3+ wins. |
|
Aug-28-20
 | | Jimfromprovidence: White can try 31 Kf2 as a defense, trying to trap the rook after 31...Rxd1 32 Qc2, below.
click for larger view One way that line loses is after 32...Qd4+ 33 Kg3 Rxb1 34 Qxb1 Qxd2. 
click for larger view |
|
| Aug-28-20 | | agb2002: I missed 35.Bh7+ in my line B.2.
Better luck tomorrow. |
|
Aug-28-20
 | | OhioChessFan: That was an outstanding pun. Rc1 with impunity. |
|
| Aug-28-20 | | Kimberlie: Qxb6 is the move which makes no sense to me.
Was this Whites way of resigning? |
|
| Aug-28-20 | | RandomVisitor: After 21.Qa2 the game continues 21...Nfxe4 22.Nxe4 Nxe4, but white might get more of a playable game with 23.Be1 rather than 23.Bxe7:
click for larger viewStockfish_20082118_x64_modern:
NNUE evaluation using C:\Users\TheDesk\Downloads\20200812-2257.bin enabled. <46/61 17:27 -0.31 21...Nfxe4 22.Nxe4 Nxe4 23.Be1> Nf6 24.Qb3 Bc6 25.Bg3 Red8 26.Nc3 Qb7 27.Bf1 d5 28.cxd5 Nxd5 29.Nxd5 Bxd5 30.Qe3 Bc5 |
|
| Aug-28-20 | | drollere: <agb2002: The white pieces become overloaded after 30... Rc8 31.Nc3 Bxb3> 30. .. Rc1 |
|
| Aug-29-20 | | areknames: <That was an outstanding pun. Rc1 with impunity.> Yes, absolutely! Great puzzle too, and what a wonderful game: the hedgehog Sicilian (or whatever this opening is called nowadays) is handled masterfully by Black. |
|
| Aug-29-20 | | RandomVisitor: A final look at the sequence 21...Nfxe4 22.Nxe4 Nxe4 where white might get more of a playable game with 23.Be1 rather than 23.Bxe7:
click for larger viewStockfish_20082118_x64_modern:
NNUE evaluation using 20200812-2257.bin enabled. <66/81 11:22:43 -0.26 21...Nfxe4 22.Nxe4 Nxe4 23.Be1> Nf6 24.Qb3 Bc6 25.Nc3 Red8 26.Bf2 Nd7 27.Bg3 Qa8 28.Rb1 a5 29.Bxd6 Nc5 30.Bxc5 Bxc5 31.Rxd8+ Rxd8 32.Rd1 g6 33.Qc2 Kg7 34.Ne4 Bxe4 |
|
May-30-23
 | | plang: Sandipan had some experience with this variation with Black having played 16..Qb8 against Ehlvest at Dhaka 2001 with White having gone on to win. 17..Nc5 had been played in Jovicic-Rajkovic Belgrade 1977 (game not included in this database) when Black went on to win; 17..h5 was new. 18 a3 seemed a bit slow; perhaps 18 Nd2 would have been better. 21 Qc2..Nfxe4 22 Be1 looks like a better defense. Nisipeanu recommended as a stronger defense 26 b3..Qe5 27 Qd2..dxc 28 Bxd1..cxb 29 Bxb3..Qb5 30 Rxc8..Rxc8 31 Qe3..Bd5 32 Nd2..Rc1+ 33 Kf2..Bxb3 34 Nxd3..Rc2+ 35 Nd2..Ra2 when White is worse but has practical drawing chances. 28 Rxc4? lost by force; Vladimirov suggested 28 Rc3..Red8 29 b3 trying to get the queen back in the game. |
|
May-30-23
 | | perfidious: A revanchist hedgehog.
Suba and Adorjan would be proud. |
|
 |
|
< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
Kibitzing
sac: 22...Nxe4