| Jan-13-23 | | Mayankk: My try was 30 Bh4 Qxh4 (forced to prevent loss of exchange) 31 Qxe6+ Kf8 ( 31 ... Kg7 32 Qe7+ Qxe7 33 Rxe7+ results in White being ahead a pawn) 32 Qxf5+ Kg8 33 Re6. We have now cornered the Black King and there is hope of a mate soon. In the worst case White can force a perpetual as well, so this is one of those positions where White has limited downside. Playable over the board. |
|
| Jan-13-23 | | goodevans: Not difficult to see that White can win a pawn with 30.Bh4 Qxh4 31.Qxe6+ Kg7 (if 31...Kf8 then 32.Qxf5+ then 33.Re6 and surely that's curtains) 32.Qe7+ Qxe7 33.Rxe7+. Is that it? Just the win of a pawn and a R&P endgame that's gonna be a real slog to win? |
|
| Jan-13-23 | | Brenin: White missed 30 Bh4, skewering the Black Q and R, Qxh4 (otherwise White wins the exchange) 31 Qxe6+ Kg7 (Kf8 32 Qh6+ is disastrous for Black) 32 Qe7+ Qxe7 33 Rxe7+ and 34 Rxc7, with good winning chances in the endgame. |
|
| Jan-13-23 | | goodevans: <Mayankk> Interesting how we see exactly the same moves but have completely different perspectives on them. |
|
| Jan-13-23 | | Brenin: Did Black miss a trick on move 21 with either Nxg2 or Rg5? The White Q was very exposed on f4, and he moved it away as soon as he could. |
|
| Jan-13-23 | | mel gibson: The move in the game was a blunder.
The correct move was obvious.
Stockfish 15 says
30. Bh4
(30. Bh4 (♗f2-h4 ♕e7xh4 ♕e3xe6+ ♔f7-g7 ♕e6-e7+ ♕h4xe7 ♖e1xe7+ ♔g7-f6 ♖e7xc7 d5-d4 c3xd4 ♖d8xd4
♖c7xb7 ♖d4-d2 ♖b7-b6+ ♔f6-g7 a2-a4 a6-a5 ♖b6-b5 ♔g7-f6 b2-b3 ♖d2-d3 h3-h4
♖d3-g3 ♖b5xa5 ♖g3xb3 ♖a5-a6+ ♔f6-g7 a4-a5 ♖b3-b1+ ♔g1-h2 ♖b1-b2 ♖a6-a7+
♔g7-g6 ♖a7-a8 ♖b2-a2 ♖a8-a6+ ♔g6-g7 ♖a6-a7+ ♔g7-g6 ♖a7-a8 ♖a2-a4 a5-a6
♔g6-g7 ♖a8-a7+ ♔g7-f6 ♔h2-g3 ♖a4-a2 ♔g3-f3 ♖a2-a3+ ♔f3-e2 ♖a3-a4 g2-g3
♖a4-a3 ♔e2-f2 ♖a3-d3) +6.55/45 358)
score for White +6.55 depth 45. |
|
| Jan-13-23 | | Mayankk: Hi <goodevans>, I am an eternal optimist when it comes to chess. Jokes aside, the position after 32 Qe7+ Qxe7 33 Rxe7+ Kf6 34 Rxc7 Rb8 seems like a very good position for White. Black has 3 isolated pawns, its Rook has to guard the b7 pawn for now, which allows the White King to move around and attack one of those isolated pawns. White is already a pawn up along with two strong pawn chains. As White I will be terribly disappointed if I can't convert this to a win. So if one can force such a position on board, most likely they will take it gleefully. |
|
| Jan-13-23 | | Brenin: <goodevans: Is that it? Just the win of a pawn and a R&P endgame that's gonna be a real slog to win?> Black's isolated and weak Ps give White a significant advantage, e.g. if 33 ... Kf6, Kg6 or Kh6 then 34 Rxc7 b5 35 Rc6+, or 34 ... Rb8 35 Rd7, winning a second P either way. Otherwise on move 33 the Black K has to retreat to the back rank, which is never nice. |
|
| Jan-13-23 | | King.Arthur.Brazil: Many will see that the continuation begin with: 30. Bh4 Qxh4 31. Qxe6+. Now, there's two different ways: 1- Recover the piece immediately: 30. Bh4 Qxh4 31. Qxe6+ Kg7 32. Qe7+ Qxe7 33. Rxe7+ Kf6 34. Rxc7 d4 35. cxd4 Rxd4 36. Rxb7 Rxf4
a- 37. g3 Rd4 38. Rb6+ Ke5 39. Rxa6 Rd1+ 40. Kf2 Rd2+ 41. Ke3 Rxb2 42. Ra5+ Kf6 43. h4 or
b- 37. Rb6+ Kg5 38. Rxa6 Kh4 39. Kh2 Rf2 40. Rb6 f4 41. Kg1 Rc2 42. Rb3. And Black counter-attack vanishes. 2- Trying to keep up the piece: 30. Bh4 Qxh4 31. Qxe6+ Kf8
In this case, The King forsees this: 32. Qxf5+ Kg8 33. Qg6+ Kh8 34. Re8+ Rxe8 35. Qxe8+ Kg7 36. Qd7+ Kg6 37. Qxc7
It could follow: 37... Qe1+ 38. Kh2 h4 39. Qd6+ Kh7 40. Qd7+ Kh6 41. Qg4 Qf2 42. Qg5+ Kh7 43. f5 Black can complicate with 39... Kf5 40. Qxd5+ Kxf4 41. Qf3+ Kg5 42. Qg4+ Kf6 (or Kh6) 43. Qf4+ Kg6 44. a4. White must win. Maybe, <Brenin> will find some slip of mine... lgs 3-Black don't accept the sac: 30... Qd7 31. Bxd8 Bxd8 32. g3 (important move to avoid 32... h4 wich blocks the K-side, because now it can be answered with 33. g4!). But this is not an easy end game. Let's see what happened. |
|
| Jan-13-23 | | King.Arthur.Brazil: I agree with my friend <Brenin>, White can force the mate in case of 31... Kf8 by 32. Qh6+ Kg8 33. Re6 Bxf4 34. Rg6+ Kf7 35. Qh7+ Ke8 36. Rg8# or similar. The king didn't explore the 33. Re6 because of 3... Rd6 34. Rxd6 Bxd6 35. Qxd6 Qe1+ 36. Kh2 h4... with possibility of perpetual check. However, White can do best with: 34. Qg6+ Kf8 35. Re8#. I haven't sleep too well, so my mind today is sleepy. |
|
| Jan-13-23 | | jrredfield: I gave considerable thought to 30 Bh4 but can't say I was 100% sure. I think that White still had a slight advantage with 30 Qf3, but I can see where that would have been a hard-fought ending. |
|
| Jan-13-23 | | Cheapo by the Dozen: There was a White-to-move puzzle and a pawn on e6. So it was obvious what the answer would be. In the 31 ... Kg7 line, White is a pawn up with better pawn structure and a more active rook. That's clearly a beneficial outcome. In the 31 ... Kf8 line, Black is cooked if White can ever get his queen to the 7th and his rook to e7. This suggests Black has little opportunity for clever resistance. |
|
| Jan-13-23 | | agb2002: The black queen is overburdened with the defense e6 and h4 and the black bishop is defenseless. This suggests 30.Bh4 Qxh4 (30... Bb6 31.Qxb6 Qxh4 32.Qxe6+ must be winning) 31.Qxe6+: A) 31... Kg7 32.Qe7+ Qxe7 33.Rxe7+ and 34.Rxc7 wins a pawn. B) 31... Kf8 32.Qxf5+
B.1) 32... Kg8 33.Qg6+ Kf8 (33... Kh8 34.Qh6+ Kg8 35.Re6, with the threat Rg6+, is winning) 34.Re6 looks winning (34... Bd6 35.Rf6+ Qxf6 [35... Ke7 36.Qf7#] 36.Qxf6+). B.2) 32... Kg7 33.Re6
B.2.a) 33... Bb6+ 34.Rxb6 Qe1+ 35.Kh2 doesn't solve Black's problems. B.2.b) 33... Rd6 34.Qg6+ Kf(h)8 35.Re8#.
B.2.c) 33... Rf8 34.Rg6+ Kh7 35.Rf6+ wins decisive material. |
|
| Jan-13-23 | | Refused: 30.Bh4 is the move that screams out to be played. 30...Qxh4 (what else, playing this an exchange down is just lost)
31.Qxe6+
a) 31...Kg7 32.Qe7+ Qxe7 33.Rxe7+ should be (close to) lost. White regains his piece, remains a healthy up, while the black pawns all look rather weak. b) 31...Kf8 32.Qxf5+
b1) 32...Kg7 33.Re6 should be curtains. Black has to defend g6 while also keeping e7 under control b2) 32...Kg8 33.Re6 same problem.
Note that the attempt to force off Queens with 33...Qxf4 is just too slow. 34.Rg6+ Kh8 35.Qxh5 Qh6 36.Qxh6# |
|
Jan-13-23
 | | scormus: 30 Qf3 1/2-1/2:O That was it? What an incredibly unambitious end.
Bh4 was so obvious, B must have breathed a big sigh of relief at such an easy let off |
|
| Jan-13-23 | | thegoodanarchist: Sometimes all you can get against a good player is just a pawn-up rook endgame. So... good puzzle! |
|
Jan-13-23
 | | Stonehenge: I'm afraid this may be the right version:
A Rodriguez Cespedes vs Y Dokhoian, 1988 |
|
| Jan-13-23 | | Brenin: <Stonehenge: I'm afraid this may be the right version: A Rodriguez Cespedes vs Y Dokhoian, 1988> Thank you, White playing 21 Qg4 instead of Qf4 would make sense, and would answer my question about whether Black missed a trick on move 21 with Nxg2 or Rg5 (he didn't). It still leaves the question of how a GM missed 30 Bh4. Of course. we all have bad days. |
|
| Jan-13-23 | | Lambda: You need to be careful here. 30.Bh4 Qxh4 31.Qxe6+ Kf8 32.Qxf5+ Kg7 33.Re6 Bxf4 
click for larger viewWhite is still winning, but needs to be precise. 34.Rg6+ Kh8 25.g3! is the only way to win, deflecting either the queen or bishop from vital defensive duties. |
|
Jan-13-23
 | | chrisowen: Kafta its win brink dj its coy guv lax zen Qf3 gab Bh4 had key cc imbibe ko a joke its Qf3 z Bh4 dan; |
|
Jan-13-23
| | Stonehenge: I've fixed the game score and deleted the duplicate. It doesn't affect this puzzle anyway. |
|
| Jan-13-23 | | johnnydeep: As others did, I immediately chose 30. Bh4 as the obvious move. Which is better than the game move says the ENGINE. |
|
Jan-13-23
| | scormus: <Lambda: ... 35.g3!>
The key move in this line to justify the B-sac and perhaps not easily seen at move 30.
I suspect W had not seen g3, maybe the reason for declining Bh4.
But I feel W should have judged the prospects were very favourable after 30 Bh4 |
|
| Jan-13-23 | | Brenin: <Lambda, scormus>: After 30 Bh4 Qxh4 31 Qxe6+ Kf8, perhaps 32 Qh6+ is stronger than Qxf5+, with the Q and R adequate to force mate or the gain of Q for R without the hard-to-foresee intervention the g-pawn? For example, 32 ... Kf7 (not Kg8 33 Re6) 33 Qh7+ Kf8 (not Kf6 34 Qe7+ with mate to follow) 34 Re6 Bxf4 35 Qg6 followed by 36 Rf6+, forcing Qxf6 37 Qxf6. |
|
Kibitzing
Annotations by 