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Later Kibitzing> |
Sep-22-17
 | | chessgames.com: <Even Stockfish thinks that 37.Bxg7!! leads to draw rather than to win.> At a sufficient search depth Stockfish finds the win: analysis of move 37.? Apparently Black can delay the mate for a while by giving up ruinous amounts of material. |
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| Sep-22-17 | | WorstPlayerEver: 利刃
lì rèn
sharp blade |
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| Sep-22-17 | | NightKnight: Really beautiful game by Ding. Positional tactics. |
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Sep-23-17
 | | Check It Out: Hey, it's like having a smarter and more human version of User: Crafty around! |
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| Mar-26-20 | | newzild: I found this to be as easy this time as I did six years ago, but expected 43. Re3 instead of 43. Re5, which invites the temporary defence 43...h6. Can anyone see a reason for 43. Re5? |
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| Mar-26-20 | | Cheapo by the Dozen: I went with Bf6 followed by Re1, but the engine says that's too slow because of the defense ... ab followed by ... Qa3, which I didn't even think to consider. |
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| Mar-26-20 | | Walter Glattke: Black has a rook for a bishop, the Li (mile or ratio), in Japan Ri now let him play 37.Bxg7, a simple club player had draw with 37.Qg5 f6 38.Bxf6 Rf8 so 37.Bxg7 Kxg7 38.Qg5+ Kf8 39.Qf6 Kg8 … time control 42.Re1 possible now Rf8, d3 axb4 42.axb4 43.Re5 h6 44.Rh5 Qxa3 to answer 45.Rxh6 with Qc1+ 46.Kh2 Qxh6 therefore 46.Qxh6 f6 and resign, black could play 46.-Qa1+ 47.Kh2 Qxd4 48.Rg5+! Option: 37.-f5 38.Bf6 Rg7 (38.-Re8? 39.Qg5+ Kf7 40.Qg7#) wins for white. |
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Mar-26-20
 | | scormus: <newzild> Relieved I'm not the only one to wonder why not 43 Re3 I wasn't sure what to choose for move 37. I wondered about Bxg7 but what if not ... Kxg7 ? I was inclined to go for 37 Qg5. I suppose it would continue .... f5 38 Bf6 39 Be7 Re8. Hmmm, it's not very convincing :( No marks today, time for engine |
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| Mar-26-20 | | rogl: <newzild: I found this to be as easy this time as I did six years ago, but expected 43. Re3 instead of 43. Re5, which invites the temporary defence 43...h6.
Can anyone see a reason for 43. Re5?>
Sorry, but if you went for 43. Re3 you didn't solve it. Black can play 43...Qxa3!, which forces white to take the draw by repetition. |
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| Mar-26-20 | | saturn2: 37. Bxg7 Kx7 now white has to play
38 Qg5 first because the immediate 38.Re1 is answered by Rg8 and this seems to hold. |
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| Mar-26-20 | | Olsonist: Why 45. Qxa6 rather Rxa6 with a back rank mate to follow after black exhausts their checks? I must be missing something because the Stockfish annotation doesn’t mention anything. |
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| Mar-26-20 | | saturn2: <Olsonist: Why 45. Qxh6 rather Rxh6> 45. Rxh6 Qc1+ 46. Kh2 Qxh6 |
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| Mar-26-20 | | Olsonist: Thanks. I think White still wins that but maybe it’s not forced in 10. |
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| Mar-26-20 | | Walter Glattke: I showed that Rh6? Qc1, too. But bad end, if Rg5+ then. |
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| Mar-26-20 | | Walter Glattke: 45.-f6 46.Qxf6 Qc1+ 47.Kh2 Rg7 48.Qxd8+ Kf7 49.Rf5+ Kg6 50.Qf6+ Kh7 51.Rh5+ Kg8 52.d7 Qf4+ 53.Qxf4 Rxd7 54.Qe5 Kf8 55.Rh8+ wins, but no immediate mate. |
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| Mar-26-20 | | RandomVisitor: After 12.Ne1 it looks like an equal game, not so much later on...
click for larger viewStockfish_20032521_x64_modern:
<45/58 08:52 0.00 12...Qc8 13.Qe2 Qb7> 14.Bxa6 Rxa6 15.Nd3 Rfa8 16.h3 axb4 17.axb4 Rxa1 18.Rxa1 Rxa1+ 19.Bxa1 Qa6 20.Bb2 Ne8 21.Qd1 g6 22.Na4 Nc7 23.Qc2 Bf6 24.Qd1 bxc5 25.bxc5 Qb5 26.Qc2 Bd8 27.Bc3 Be7 28.Bb2 |
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| Mar-26-20 | | Autoreparaturwerkbau: I think the idea for today's puzzle comes from Simon Williams' same puzzle dating only 6 days ago: https://youtu.be/bmQFsSe346w?t=330 |
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| Mar-26-20 | | TheaN: Oh darn. I saw the concept of this puzzle, concluding Black might not be allowed to take on g7 but in that case be lost anyway. However, I was set on Qg5-f6-Re1-Re3 to pretty much any defense, but I missed the axb4 with Qxa3! idea which is a very sneaky defensive concept. Re5 with h6 complicates things beyond what I saw, so no points today. |
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| Mar-26-20 | | RandomVisitor: After 4...a6 Stockfish likes 5.g3
click for larger viewStockfish_20032521_x64_modern:
<49/71 1:33:49 +0.22 5.g3 e6 6.Bg2 dxc4 7.a4> c5 8.dxc5 Qxd1+ 9.Nxd1 Bd7 10.Ne3 Bc6 11.Nxc4 Bxc5 12.0-0 Nbd7 13.Bf4 0-0 14.Rfc1 Rfc8 15.Nfd2 Bxg2 16.Kxg2 Nd5 17.Bd6 Rc6 18.Bxc5 Nxc5 19.Na5 Rc7 20.Ndb3 b6 21.Nxc5 bxc5 22.Nc4 Rb8 23.a5 Rd7 24.h3 f5 |
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Mar-26-20
 | | chrisowen: If hack goodness no? |
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| Mar-26-20 | | agb2002: Level 3: 37...?
F J Lee vs Lasker, 1899
click for larger view |
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Mar-26-20
 | | gawain: This was hard! I failed badly, except for seeing that White would at some point threaten checkmate delivered by queen and pawn (by Qh8). But all I could see for White after that threat was a draw by repetition. |
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| Mar-26-20 | | Walter Glattke: Option to Lee -Lasker, seems to win also without RxB : 37.-Qg4+ 38.Kf1 Qg2+ 39.Ke1 Qg1+ 40.Kd2 Nd3 (threatens Qc1#) 41.Bxd3 cxd3 42.Qe1! but 40.-Ng2 41.Qf2 Bf3 42.Qxf3? Qe1# |
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Mar-26-20
| | chrisowen: Waiting for godot... |
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Sep-27-24
 | | Sally Simpson: As others have hive hinted in this thread, Ding played 37.Bxg7 knowing the draw was there.
Ding is very honest in saying indeed this was the case. 
click for larger view"With about 10 minutes left, I couldn’t find any decisive tactics. So, I decided to play the safest line, annoyed by the winning chance I may have missed. 37.♗xg7 ♔xg7 38.♕g5+ ♔f8
And suddenly, I realized that I may be winning here. Restraining my excitement, I first repeated moves to pass the time control." Ding Liren's Best Games (page 134) I took that from a sample PDF of this book. https://cdn.shopify.com/s/files/1/0... which contains a flashcard (page 23) of Ding's opening rep 2001 - 2023. |
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Kibitzing
sac: 32.Nd5