| Jul-13-23 | | Brenin: The required moves are not hard to see, but one must play them in the right order: 35 ... Rb5 36 Qc3 (or Qc4) Rxb3 (or d2 as in the game) 37 Qxb3 d2 38 Rd1 (otherwise 38 ... Qxc5+ and 39 ... Qd4 is nasty) Ba4 39 Qa3 Qd7 (better than Bxd1 40 Qxa7 Bb3, even though that induced resignation?) 41 Qa1 Bxd1 42 Qxd1 Qd4+ 43 Kf1 Qd3+ 44 Kf2 Kf6 and White is paralysed. |
|
| Jul-13-23 | | jrredfield: 35 ... Rb5 36 Qc3 Rxc5 was my quick guess. Deeper analysis revealed this line I felt would work: 36 ... Rxb3 37 Qxb3 d2, followed by several possible responses for White, none of which stood out to me. At least I got the first two moves. |
|
| Jul-13-23 | | mel gibson: Didn't see that today.
Stockfish 16 says:
35. .. Rb5
(35. .. Rb5 (Ra5-b5 Qb4-c3 Rb5xb3 Qc3xb3 d3-d2 Rc1-d1 Bc6-a4 Qb3-a3 Ba4xd1 Qa3xa7 Bd1-b3 h2-h3 d2-d1Q+ Kg1-h2
Qd1-d4 Qa7-b7 Bb3-c4 c5-c6 Bc4-f1 Qb7-b8 Qd4-c5 Qb8-b2 f7-f6 Qb2-b7+ Kg7-h6
)
+5.39/60 682)
score for Black +5.39 depth 60. |
|
| Jul-13-23 | | latebishop: As jrredfied mentioned, 36.Rxb3 37. Qxb3 d2 seems to work? Eg: 38. Rd1 Ba4 39.Qb6 Qxb6 40. cxb6 Bxd1 41. b7 Bc2 42. b8 = Q, d1 = Q+, and Black is again a bishop up. |
|
Jul-13-23
 | | al wazir: How's this for a line?
35...Ra1 36. Qc3 Rxc1+ 37. Qxc1 d2 38. Qxd2 Qxc5+ 39. Qf2 Qc1+ 40. Qf1 Qe3+, winning the ♗. But white has 36. Rxa1 Qxa1+ 37. Kf2 Qb2+ 38. Kg3 d2 39. Qc4 Qc1 40. Qe2 Qe1+ 40. Qd3 (not 40. Qe2 Qe1+ 41. Qf2 d1=Q) Qe1+ 41. Kh3, which looks like a draw. |
|
| Jul-13-23 | | thegoodanarchist: a good gotd pun would be
"Agzamov conscience" |
|
| Jul-13-23 | | Mayankk: My line was 35 ... Rb5 36 Qc3/Qc4 (to save the c5 pawn) Rxb3 37 Qxb3 d2 38 Rd1 Qxc5+ 39 Kh1 (39 Kf1 Bb5+ is lost) Qc1. Now I was in an interesting situation where the White Queen was guarding the d1 White Rook. So it was bound to the a4 - d1 diagonal and couldn't move elsewhere. Also the White Rook was chained to the d1 square (note that 40 Rxc1 dxc1 = Q+ is lost). That allowed Black Bishop to move around and possibly target the d1 square from e2 or find another way. But I wasn't sure if there was a definite win for Black. |
|
| Jul-13-23 | | Refused: <Mayankk: My line was 35 ... Rb5 36 Qc3/Qc4 (to save the c5 pawn) Rxb3 37 Qxb3 d2 38 Rd1 Qxc5+ 39 Kh1 (39 Kf1 Bb5+ is lost) Qc1. Now I was in an interesting situation where the White Queen was guarding the d1 White Rook. So it was bound to the a4 - d1 diagonal and couldn't move elsewhere. Also the White Rook was chained to the d1 square (note that 40 Rxc1 dxc1 = Q+ is lost). That allowed Black Bishop to move around and possibly target the d1 square from e2 or find another way. But I wasn't sure if there was a definite win for Black.> You are one tempo short of a win there.
40.Kg1!! (this move holds) Bb5 41.Kf2! (that's the point. white's King is just in time to cut out any Be2 nonsense) Bd3! 42.Rxc1 dxc1Q 43.Qxd3 = |
|
| Jul-13-23 | | King.Arthur.Brazil: I saw this line but I don't know if it is enough to win... 35...d2 36. Qxd2 Rxc5 37. Rxc5 Qxc5+ 38. Qf2 Qc1+ 39. Qf1 Qe3+ 40. Qf2 Qxb3. But, White can play 37... Rh1 Qa3 38. Rxc5 Qxc5 and no advantage. This line showed that this move can be strong, at the right time. Let's try: 35... Ra1 36. Rxa1 Qxa1+ 37. Kf2 Qb2+ (38. Ke3?? Qe2#) 38. Kg1 d2 39. Qc4? Qc1+ 40. Kf2 Qxc4 41. Bxc4 d1=Q. Also, 38. Kg1 Qc1+ 39. Kf2 d2 (threatening 40... Qe1#), 40. Ke2 Bb5+ 41. Qxb5 Qe1+ (41. Ke3 Qe1# ) 42. Kd3 Qf1+ 43. Kxd2 Qxb5 (win the ♕, I love it!). If White refused to exchange, 36. Qd2 Qxc5+ 37. Kf1 Rxc1+ (win the ♕ too). 36. Qc3 (the best). Rxc1+ 37. Qxc1 d2 38. Qxd2 Qxc5+ 39. Kf1 Bb5+ 40. Ke1 Qg1#. While 38. Qd1 Qxc5+ 39. Kf1 Bb5+ and win also.
Nevertheless, White can answer again 38. Qc3 Qa3 39. Qc4 Qc1+ (Qxc1? dxc1=Q+) 40. Kf2 Qe1#. Best for White is 39. Qc2 Qc1+ 40. Qd1! In this case, I only find: 40... Bb5 41. Kf2 Bc4 42. Bc2 Bd3 43. Bb3 Qxc5+ 44. Kg3 Qe3 threatening 45... Be2 must be enough. I suppose that there's something I'm missing, but I didn't find what. |
|
| Jul-13-23 | | Mayankk: Hi <Refused>,
Yes. Seems like it. In my mind, one of the Bb5 - Bd3 - Bc2 or Bb5 - Be2 sequences should have worked. In real world White has just enough time for Kf2 and now Rxc1 dxc1 = Q is no longer a check. |
|
| Jul-13-23 | | Brenin: 39 Qc3 (or Qd5) Bxd1 40 Qxe5+ f6 41 Qd4 Be2 42 Qxd2 Qxc5+ 43 Kh1 Bb5 looks like a better defence for White than 39 Qa3 (time pressure?). Black has Q+B+3P vs Q+4P, but with Qs on the board and no prospect of a passed P the win looks arduous. |
|
| Jul-13-23 | | agb2002: The white queen becomes overloaded after 35... Rb5: A) 36.Qc3 d2
A.1) 37.Qxd2 Rxb3 wins decisive material.
A.2) 37.Rc2 d1=Q+ wins.
A.3) 37.Rd1 Rxb3 38.Qxb3 Ba4 39.Qb1 (39.Ra1 Bxb3 40.Rxa7 d1=Q+ wins) 39... Qxc5+ 40.Kh1 (40.Kf1 Bb5+ 41.Qxb5 Qxb5+ wins) 40... Bxd1 41.Qxd1 Qc1 wins. B) 36.Qc4 d2
B.1) 37.Rd1 Rxb3 as in A.3.
B.2) 37.Rb1 Rxc5 (looks quicker than 37... Rxb3 38.Qxb3 [38.Rxb3 d1=Q+ wins] 38... Qxc5+ 39.Kh1 [39.Kf1 Bb5+ 40.Qxb5 d1=Q+ wins] 39... Qc1+ 40.Qd1 Qxb1 41.Qxb1 Ba4 winning decisive material) 38.Qe2 (less painful than 38.Qxf7+ Qxf7 39.Bxf7 Rc1+) 38... Rc1#. B.3) 37.Rf1 Rxc5 38.Qe2 Rc1+ 39.Kh1 (39.Qf2 Rxf1+ 40.Kxf1 Bb5+ 41.Kg1 Qc1+ and mate in two) 39... Qc1+ 40.Qd1 (40.Bd1 Ba4 wins) 40... Bb5 followed by 41... Be2 wins. B.4) 37.Rc3 Rxb3 38.Qxb3 Qa1+ wins. |
|
Jul-13-23
 | | chrisowen: Zug co melly its wide quark Rb5 fifth its fab aba auld gab Rb5 bet :) |
|
| Jul-13-23 | | Hercdon: Easier to see than Monday |
|
| Jul-13-23 | | Brenin: <agb2002>: in line A.3, 39 Qa3, Qc3 and Qd5, defending the P on c5, are all better than Qb1. White is probably losing anyway by this point, though lines such as 39 Qd5 Bxd1 40 Qxe5+ suggest that he can keep fighting for some time. |
|
| Jul-14-23 | | agb2002: <Brenin: <agb2002>: in line A.3, 39 Qa3, Qc3 and Qd5, defending the P on c5, are all better than Qb1. White is probably losing anyway by this point, though lines such as 39 Qd5 Bxd1 40 Qxe5+ suggest that he can keep fighting for some time.> You are right, thank you! |
|
Kibitzing
sac: 37...Rxb3