Details about Leela Chalange in Jerusalem

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Moderator: Ras

Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

analysis of game 9

[pgn][Event "casual classical game"]
[Site "https://lichess.org/Uva4tcd7"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "eyal20000"]
[Result "1-0"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/R1BQKB1R w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "57"]
[WhiteType "human"]
[BlackType "human"]

1. e3 e5 2. d4 exd4 3. exd4 d5 4. Be3 Bd6 5. Qd2 Nf6 6. O-O-O Be6 7. Kb1
Nbd7 8. f3 c6 9. a4 Qb6 {not good because block the b pawn} (9. .. a6 10.
g4 b5) 10. g4 Qb4 11. Qf2 Nb6 12. b3 Nxa4 13. Rd3 Nc3+? {a blunder.} (13.
.. c5) 14. Rxc3 a5 15. g5 Nd7? (15. .. Nh5 {is more active}) 16. f4 g6?
(16. .. a4) 17. Bd2 Qb6 18. Bh3 Bxh3 (18. .. a4) 19. Rxh3 Kd8 (19. .. O-O
20. Qh4 h5) 20. Kb2 (20. f5) 20. .. Kc7 (20. .. a4) 21. f5 a4 22. Ra1 Ne5
23. fxg6 hxg6 24. Rxh8 Rxh8 (24. .. Nd3+) 25. Kb1 Rh7 (25. .. Rh3) 26. Rxa4
Nc4 27. Bc3 Kb8 (27. .. Kd7) 28. h4 Nb2?? {a losing mistake . Na3+ was
best. Black meant that move.} (28. .. Na3+ 29. Ka2 Qc7 (29. .. Nb5? 30. Ba5
Qa6? 31. Bc7+? {was the plan of black} (31. Qf6)) 30. Rxa3 Bxa3 31. Kxa3 b6
{is not an easy win for black} 32. Bd2 Kb7 33. Bf4 Qe7+ 34. Kb2) 29. Kxb2
{. Black resigns} 1-0
[/pgn]
Top
Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

new stockfrish simply make wrong comments about the next game
https://lichess.org/xXYGF7US
25...Qxa2 is not a mistake and it force mate in at most 24 moves. Qb2 is a faster mate in at most 16 moves based on my analysis but this is not a good reason to claim that 25....Qxa2 is a mistake and the small evaluation in the site is clearly absurd. of the stupid NN and old engines can see higher evaluation based on material also at small depthes

[d]6r/p4p2/3kb1p1/6P1/2Pp4/qP3Q2/P2P4/3K2R1 b - - 4 25

Slow64-avx2 [001]:
2/2 00:00 505 0 +9.32 Qa3xa2 Qf3-f4+ Kd6-c6 Qf4-e4+
3/4 00:00 2k 0 +9.16 Qa3xa2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c7 Qe4-e5+ Kc7-b7
4/6 00:00 5k 0 +8.68 Qa3xa2 Qf3-f4+ Kd6-c5 Qf4-c7+ Kc5-b4 Qc7-b7+ Kb4-a3
4/6 00:00 9k 0 +9.04 Qa3-b2 Rg1-f1 Qb2-b1+ Kd1-e2 Rh8-h2+ Rf1-f2 Rh2xf2+ Ke2xf2
5/7 00:00 18k 1,820k +9.17 Qa3-b2 Qf3-g3+ Kd6-d7 Qg3-g2 Qb2-b1+ Kd1-e2 d4-d3+ Ke2-e3 Qb1xa2
6/8 00:00 21k 2,088k +9.08 Qa3-b2 Qf3-f4+ Kd6-d7 Kd1-e2 Kd7-e8 Qf4-e4 Rh8-h2+ Rg1-g2
7/11 00:00 44k 4,398k +9.32 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-f3+ Kc6-b6 Qf3-g3 Qb2-b1+ Kd1-e2 Qb1xa2 Qg3-d6+ Kb6-b7
8/11 00:00 46k 4,558k +9.32 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-f3+ Kc6-b6 Qf3-g3 Qb2-b1+ Kd1-e2 Qb1xa2 Qg3-d6+ Kb6-b7
9/14 00:00 54k 5,368k +9.40 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-f3+ Kc6-b6 Qf3-g3 Qb2-b1+ Kd1-e2 Qb1xa2 Qg3-d6+ Kb6-b7 Qd6-b4+ Kb7-c6 Qb4-b5+
10/14 00:00 99k 4,950k +10.08 Qa3-b2 Qf3-g3+ Kd6-c6 Qg3-f3+ Kc6-b6 c4-c5+ Kb6xc5 Qf3-g3 Qb2xa2 Qg3-c7+ Kc5-d5 Qc7-c4+ Kd5-d6 Qc4xd4+
11/20 00:00 379k 5,409k +11.08 Qa3-b2 Qf3-g3+ Kd6-c6 Rg1-f1 Qb2xa2 Qg3-f3+ Kc6-c5 b3-b4+ Kc5xc4 Qf3-c6+ Kc4xb4 Qc6-b7+ Kb4-a3 Qb7-e7+ Ka3-b2
12/24 00:00 1,052k 5,536k +13.01 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-e5+ Kc5-c6 Qe5-e4+ Kc6-b6 Qe4-c2 Qb2-a1+ Qc2-c1 Qa1xc1+ Kd1xc1 Ra8-c8+ Kc1-b2 Rh8-h2
13/24 00:00 1,541k 5,503k +13.56 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-d1 Be6-f5+ Kc2-c1 Ra8-e8 a2-a4 Rh2-g2 Kc1-b2 Rg2xg5 Rd1-c1+
14/26 00:00 1,881k 5,533k +13.40 Qa3-b2 Qf3-f4+ Kd6-c6 Kd1-e2 Ra8-e8 Ke2-f2 Be6-f5 c4-c5 Qb2xa2 Rg1-d1 Qa2-c2 Qf4-d6+ Kc6-b5 Qd6xd4 Rh8-h2+ Kf2-g1 Qc2xd1+ Kg1xh2 Re8-e2+ Kh2-g3 Qd1xb3+
15/29 00:00 3,320k 5,723k +14.64 Qa3-b2 Qf3-f4+ Kd6-c6 Kd1-e2 Ra8-e8 Ke2-f2 Be6-f5 c4-c5 Qb2xa2 Qf4xd4 Re8-d8 Rg1-a1 Qa2xd2+ Qd4xd2 Rd8xd2+ Kf2-e3 Rd2-d7 Ra1-a5 Rd7-e7+ Ke3-f4 Rh8-h2 Kf4-f3 Rh2-h3+ Kf3-f2 Rh3xb3
16/33 00:00 5,125k 5,824k +16.04 Qa3-b2 Qf3-f4+ Kd6-c6 Kd1-e2 Ra8-e8 Ke2-f2 Be6-f5 c4-c5 Qb2xa2 Rg1-d1 Qa2-c2 Rd1-a1 Qc2xd2+ Qf4xd2 Rh8-h2+ Kf2-g1 Rh2xd2 b3-b4 d4-d3 Kg1-f1 Bf5-h3+ Kf1-g1 Rd2-g2+ Kg1-h1
17/33 00:01 6,005k 5,774k +16.60 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 a2-a4 Qb2-a1+ Kd1-c2 Qa1xg1 a4-a5+ Kb6xa5 Qe4-e5+ Ka5-b6 Qe5-b5+ Kb6-c7 Qb5-c5+ Kc7-d7 Qc5-b5+ Kd7-d6 Qb5-b4+ Kd6-e5 Qb4-c5+ Ke5-f4 Qc5-d6+ Kf4xg5 Kc2-b2 Rh8-h1 Qd6-e7+ Kg5-f4
18/34 00:01 8,992k 5,655k +17.12 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-c1 Kc5-d5 Kc2-b2 Be6-f5 b3-b4 Rh2xd2+ Kb2-b3 d4-d3 a2-a3 Kd5-d4 Rc1-c4+ Kd4-e3 Rc4-c1 Bf5-e6+ Kb3-a4 Rd2-c2 Rc1-e1+ Ke3-d2 Re1-e5
19/39 00:03 16,575k 5,525k +18.60 Qa3-b2 Qf3-f4+ Kd6-c6 Kd1-e2 Ra8-e8 Ke2-f2 Be6-f5 c4-c5 Qb2xa2 Rg1-d1 Qa2-c2 Rd1-a1 Qc2xd2+ Qf4xd2 Rh8-h2+ Kf2-g3 Rh2xd2 Ra1-f1 Kc6xc5 Rf1-f4 Rd2-b2 b3-b4+ Kc5-c4 b4-b5 Rb2xb5 Rf4-f3
20/41 00:04 28,304k 5,776k +20.36 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 a2-a4 Qb2-a1+ Kd1-c2 Qa1xg1 a4-a5+ Kb6xa5 Qe4-e5+ Ka5-b6 Qe5-b5+ Kb6-c7 Qb5-c5+ Kc7-d7 Qc5-b5+ Kd7-d6 Qb5-b4+ Kd6-e5 Qb4-c5+ Ke5-f4 Kc2-b2 Rh8-h1 Qc5-c7+ Kf4-g4 Kb2-a3 Qg1-c1+ Ka3-a4 Qc1xd2 Ka4-b5 Rh1-h3 c4-c5 Rh3xb3+ Kb5-c6 Qd2xg5
21/41 00:08 47,890k 5,971k +26.10 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 a2-a4 Qb2-a1+ Kd1-c2 Qa1xg1 a4-a5+ Kb6xa5 Qe4-e5+ Ka5-b6 Qe5-b5+ Kb6-c7 Qb5-c5+ Kc7-d7 Qc5-b5+ Kd7-d6 Qb5-b4+ Kd6-e5 Qb4-c5+ Ke5-f4 Kc2-b2 Rh8-h1 Qc5-c7+ Kf4-g4 Kb2-a3 Qg1-c1+ Ka3-a4 Qc1xd2 Ka4-b5 Ra8-c8 Qc7xc8 Be6xc8 c4-c5 d4-d3
22/42 00:09 56,274k 6,038k +26.24 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-d1 Ra8-c8 Kc2-b2 Kc5-d5 a2-a4 Be6-g4 Rd1-b1 Bg4-f5 Rb1-d1 Rc8-c2+ Kb2-a3 Rh2xd2 Rd1xd2 Rc2xd2 Ka3-b4 d4-d3 Kb4-a5 Rd2-c2 Ka5-a6 d3-d2 Ka6-b7 d2-d1Q b3-b4 Bf5-c8+ Kb7-b8
23/43 00:16 97,970k 6,085k +31.51 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-c1 Kc5-d5 Kc2-b2 Rh2xd2+ Kb2-a3 d4-d3 Rc1-b1 Rd2-c2 Rb1-d1 d3-d2 Ka3-b4 Ra8-b8+ Kb4-a3 Kd5-d4 Rd1-h1 Rc2-c1 Ka3-a4 Rc1xh1 Ka4-a5 d2-d1Q Ka5-a6 Qd1-c2 Ka6xa7
24/43+ 00:16 98,446k 6,084k +M34 Qa3-b2
24/43- 00:16 102,231k 6,049k +M250 Qa3-b2 Qf3-f4+
25/47 00:19 113,639k 5,947k +M21 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 a2-a4 Qb2-a1+ Kd1-c2 Qa1xg1 a4-a5+ Kb6xa5 Qe4-e5+ Ka5-b6 Qe5-b5+ Kb6-c7 Qb5-c5+ Kc7-d7 Qc5-b5+ Kd7-d6 Qb5-b4+ Kd6-e5 Kc2-b2 Rh8-h1 Qb4-c5+ Ke5-e4 Qc5-c6+ Ke4-d3 Qc6-f3+ Kd3xd2 Qf3-f4+ Qg1-e3 Qf4xe3+ d4xe3 Kb2-a3 Kd2-c3 Ka3-a2 e3-e2 b3-b4 Be6xc4+ Ka2-a3 Rh1-a1+
26/49 00:31 175,041k 5,625k +M20 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Be6-f5+ Kc2-b2 Rh8-h2 Kb2-a3 Rh2xd2 Rg1-a1 Rd2-c2 Ra1-e1 d4-d3 Re1-e5+ Kc5-d6 Re5-e1 d3-d2 Re1-d1 Kd6-c5 b3-b4+ Kc5-c4 b4-b5 Bf5-e6 Rd1-a1 Kc4-c5 Ka3-a4 d2-d1Q Ra1-c1 Qd1xc1 a2-a3 Rc2-c4+ Ka4-b3 Qc1-c2+
27/49 00:34 190,721k 5,575k +M20 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-c1 Kc5-d5 Rc1-d1 Be6-f5+ Kc2-b2 Ra8-c8 Kb2-a3 Rc8-c2 Rd1-e1 Rc2xd2 Ka3-b4 Rd2xa2 Re1-e7 d4-d3 Re7-c7 d3-d2 Rc7-c5+ Kd5-d6 Kb4-b5 Bf5-d3+ Kb5-b4 Rh2-h4+ Kb4-c3 Ra2-c2+ Kc3xd3 d2-d1Q+ Kd3-e3 Qd1-e2+
28/49 00:42 236,567k 5,526k +M17 Qa3-b2 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-b6 c4-c5+ Kb6xc5 Qe4-c2+ Qb2xc2+ Kd1xc2 Rh8-h2 Rg1-c1 Ra8-c8 Kc2-b2+ Kc5-b5 Rc1xc8 Be6xc8 Kb2-c2 Bc8-f5+ Kc2-b2 Rh2xd2+ Kb2-c1 Rd2xa2 Kc1-d1 Bf5-d3 Kd1-e1 Kb5-b4 Ke1-d1 Kb4xb3 Kd1-e1 Kb3-c3 Ke1-d1 Ra2-a1+
29/49 01:19 422,904k 5,326k +M16 Qa3-b2 Qf3-f4+ Kd6-c6 Kd1-e2 Ra8-e8 Ke2-f2 Be6-f5 c4-c5 Qb2xa2 Qf4xd4 Re8-d8 Rg1-a1 Qa2xd2+ Qd4xd2 Rd8xd2+ Kf2-e3 Rd2-d3+ Ke3-f2 Rh8-h2+ Kf2-g1 Rd3-d2 Ra1-a6+ Kc6-b5 Ra6-d6 Rd2-g2+ Kg1-f1 Bf5-e4 Rd6-b6+ a7xb6 c5xb6 Rh2-h1+

After Qxa2
[d]r6r/p4p2/3kb1p1/6P1/2Pp4/1P3Q2/q2P4/3K2R1 w - - 0 26

Slow64-avx2 [001]:
2/3 00:00 1k 0 -9.16 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c7 Qe4-e5+ Kc7-b7
3/5 00:00 4k 0 -8.92 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-d6+ Kb4xb3
4/7 00:00 8k 0 -8.96 Qf3-f4+ Kd6-c5 Qf4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3xb3
5/9 00:00 10k 0 -8.96 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3xb3
6/11 00:00 13k 0 -8.28 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b6 Qe5xd4+ Kb6-c6 Qd4-e4+ Kc6-c7 Qe4-e5+ Kc7-b7
7/11 00:00 16k 0 -8.24 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b6 Qe5xd4+ Kb6-a6 Qd4-d6+ Ka6-b7 Qd6-b4+ Kb7-c6 Qb4-b5+ Kc6-d6
8/13 00:00 20k 0 -8.24 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b6 Qe5xd4+ Kb6-a6 Qd4-d6+ Ka6-b7 Qd6-b4+ Kb7-c6 Qb4-b5+ Kc6-d6
9/15 00:00 34k 0 -8.36 Qf3-f4+ Kd6-c5 Qf4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5
10/15 00:00 43k 0 -9.60 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+
11/22 00:00 98k 9,798k -9.72 Qf3-f4+ Kd6-c5 Qf4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 Qd4-e4 Qa2xc4 Qe4-g2 Be6-d5
12/22 00:00 141k 7,029k -10.44 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Kb5xc5 Qd3-e3+ Kc5-c6 Qe3-f3+
13/25 00:00 403k 6,722k -11.76 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-d6+ Kb4xb3 Rg1-g3+ Kb3xc4 Qd6-c6+ Kc4-b4 Qc6-b7+ Kb4-c5 Qb7-c7+ Kc5-d5 Qc7-b7+ Kd5-d6 Qb7-b4+ Kd6-c6
14/25+ 00:00 542k 6,018k -10.14 Qf3-f4+
14/25 00:00 587k 6,525k -12.28 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-d6+ Kb4xb3 Rg1-g3+ Kb3xc4 Qd6-c6+ Kc4-b4 Qc6-b7+ Kb4-c5 Qb7-c7+ Kc5-d5 Qc7-b7+ Kd5-d6 Qb7-b4+ Kd6-c6 Qb4xd4 Qa2-b1+ Kd1-e2 Rh8-h2+ Ke2-e3
14/25 00:00 882k 6,300k -12.68 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Kd1-e2 Be6xc4+ Ke2-f2 Rh8-h2+ Rg1-g2 Rh2xg2+ Kf2xg2 Qa2-c2 Kg2-g1 Ra8-e8
15/32 00:00 1,891k 6,304k -13.84 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-e4 Qa2xc4 Qe4xc4+ Be6xc4 Kd1-c2 Bc4-d5 Rg1-a1+ Ka4-b5 Kc2-c3 Rh8-h3+ d2-d3 Ra8-c8+ Kc3-d4
16/32 00:00 2,028k 6,338k -14.00 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Qa2-c4 Qd3xc4+ Be6xc4 Kd1-c2 Kb5xc5 Rg3-e3 Kc5-d4 Re3-g3 Ra8-c8 Rg3-c3
17/32 00:00 2,312k 6,423k -13.92 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Qa2-c4 Qd3xc4+ Be6xc4 Kd1-c2 Kb5xc5 Rg3-c3 Rh8-h2 Kc2-c1 Rh2-h1+ Kc1-b2 Kc5-d4 Kb2-c2
18/37 00:00 2,804k 6,373k -14.00 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-e4 Qa2xc4 Qe4xc4+ Be6xc4 Kd1-c2 Bc4-d5 Rg1-a1+ Ka4-b5 Kc2-d3 Rh8-h3+ Kd3-d4 Ra8-d8 Kd4-e5 Rd8-e8+ Ke5-d6 Re8-e6+ Kd6-d7
19/37 00:00 5,417k 6,449k -14.76 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Qa2-c4 Qd3xc4+ Be6xc4 c5-c6 Rh8-h1+ Kd1-c2 Kb5xc6 Rg3-c3 Kc6-d5 Rc3-a3 Kd5-d4 Ra3-f3 Bc4-e6 Rf3-f4+ Kd4-e5 Rf4-b4 Ra8-c8+ Kc2-d3 Be6-f5+
20/45 00:01 7,862k 6,497k -14.80 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-c2+ Qa2xc2+ Kd1xc2 Ka4-b4 Rg1-b1+ Kb4xc4 Rb1-b7 Rh8-h1 d2-d3+ Kc4-d4 Rb7-b4+ Kd4-e3 Rb4-e4+ Ke3-f3 Kc2-d2 Rh1-h2+ Kd2-c3 Ra8-c8+ Kc3-d4
21/45 00:01 10,676k 6,550k -15.16 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-e4 Qa2xc4 Qe4xc4+ Be6xc4 Rg1-g4 Rh8-h1+ Kd1-c2 Ka4-b5 d2-d3 Bc4-d5 Kc2-d2 a7-a5 Kd2-c3 a5-a4 Rg4-b4+ Kb5-c5 d3-d4+ Kc5-d6
22/50 00:02 15,352k 6,450k -15.36 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Qa2-c4 Qd3xc4+ Be6xc4 c5-c6 Rh8-h1+ Kd1-c2 Kb5xc6 Rg3-c3 Kc6-d5 Rc3-a3 Kd5-d4 Ra3-f3 Bc4-e6 Rf3-d3+ Kd4-e5 Rd3-c3 Be6-f5+ d2-d3 Rh1-h2+ Kc2-b3 Ke5-d4 Rc3-c4+ Kd4xd3 Rc4-c3+ Kd3-d4 Rc3-c4+ Kd4-e3
23/50 00:06 39,052k 6,268k -16.72 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-c2+ Qa2xc2+ Kd1xc2 Ka4-b4 Rg1-b1+ Kb4xc4 d2-d3+ Kc4-d4 Rb1-b4+ Kd4-e3 Rb4-e4+ Ke3-f3 Kc2-d2 Ra8-b8 Re4-e3+ Kf3-f4 Re3-e4+ Kf4xg5 Kd2-c2 Rh8-h2+ Kc2-c3 Rh2-h3 Kc3-c2 Rb8-d8 Re4-a4 Rd8xd3 Ra4xa7 Be6-b3+ Kc2-b2 Rh3-h2+
24/55 00:10 63,525k 6,308k -17.12 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-c2+ Qa2xc2+ Kd1xc2 Ka4-b4 Rg1-b1+ Kb4xc4 d2-d3+ Kc4-d4 Rb1-b4+ Kd4-e3 Rb4-e4+ Ke3-f3 Kc2-d2 Ra8-b8 Re4-e3+ Kf3-f4 Re3-e4+ Kf4xg5 Re4-e3 Rb8-b2+ Kd2-c3 Rb2-b3+ Kc3-d4 Rh8-d8+ Kd4-e4 Be6-f5+ Ke4-f3 Rb3xd3 Re3xd3 Rd8xd3+ Kf3-f2 a7-a5 Kf2-g1
25/55 00:15 98,239k 6,371k -17.64 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-d3+ Kb3-a4 Qd3-c2+ Qa2xc2+ Kd1xc2 Ka4-b4 Rg1-b1+ Kb4xc4 d2-d3+ Kc4-d4 Rb1-b4+ Kd4-e3 Rb4-e4+ Ke3-f3 Kc2-d2 Ra8-b8 Re4-e3+ Kf3-f4 Re3-e4+ Kf4xg5 Re4-e5+ Kg5-f6 Re5-e1 Rb8-b3 Re1-d1 Rh8-h2+ Kd2-e3 Be6-f5 Ke3-d4 a7-a5 Kd4-c5 a5-a4 Kc5-d6 Bf5xd3
26/64 00:28 182,743k 6,323k -19.20 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Ka4-b5 Qd4-d3+ Qa2-c4 Qd3xc4+ Be6xc4 c5-c6 Rh8-h1+ Kd1-c2 Kb5xc6 Kc2-c3 Bc4-e6 d2-d4 a7-a5 Kc3-d2 a5-a4 Rg3-c3+ Kc6-d5 Rc3-a3 Kd5xd4 Kd2-e2 Kd4-c5 Ra3-c3+ Kc5-b4 Rc3-c7 a4-a3 Rc7-b7+ Kb4-c4 Ke2-f2
27/64 00:43 272,415k 6,286k -19.72 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ Ke2-f2 Rh8-h2+ Kf2-f3 Rh2xd2 Rg1-e1 a7-a5 Kf3-e3 Ra8-d8 Ke3-f4 Rd8-d4+ Kf4-e5 Ka4-b4 Ke5-f6 a5-a4 Re1-e7 a4-a3 Re7-b7+ Kb4-c3 Rb7-a7 a3-a2 Kf6-g7 Rd2-d1 Ra7xa2 Bc4xa2
28/64- 01:13 464,818k 6,286k -27.73 Qf3-f4+ Kd6-c6
28/64 01:18 493,566k 6,291k -29.40 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Ke5-d6 Ka4-b3 Kd6-c7 a5-a4 Kc7-b7 Bd3-e4+ Kb7-c7 a4-a3 Rg1-a1 Be4-d3 Kc7-b7 Ra8-a6 Kb7-b8 a3-a2 Kb8-c7 Ra6-a8 Kc7-b7 Bd3-e4+ Kb7-c7 Rh3-d3 Ra1-e1 Rd3-c3+ Kc7-d6 Kb3-b2 Kd6-d7 Be4-b1 Re1-e2+ Bb1-c2 Re2-e1 Bc2-b1
29/64 01:38 609,556k 6,170k -32.20 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-f6 a4-a3 Rc7-e7 Rh3-f3+ Kf6-g7 Bc4-d3 Re7-c7+ Kc3-d2 Rc7-b7 a3-a2 Rb7-b2+ Kd2-c3 Rb2-b6 a2-a1Q Rb6-f6 Rf3-h3 Rf6-f1 Bd3xf1
30/64- 01:40 619,479k 6,167k -M65 Qf3-f4+ Kd6-c6
30/64+ 01:59 717,288k 5,982k -M250 Qf3-f4+
31/64 02:06 751,617k 5,953k -M33 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-f6 a4-a3 Rc7-e7 Bc4-d3 Re7-c7+ Kc3-b3 Rc7-d7 Rh3-f3+ Kf6-e7 a3-a2 Rd7-b7+ Kb3-a4 Rb7-d7 a2-a1Q Rd7-d4+ Ka4-b3 Rd4xd3+ Rf3xd3 Ke7xf7 Qa1-a7+ Kf7xg6 Ra8-g8+ Kg6-f5
32/64 02:21 830,539k 5,863k -M30 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-d6 a4-a3 Rc7-e7 a3-a2 Re7-e1 Kc3-b3 Kd6-c7 Bc4-d3 Kc7-b7 Bd3-e4+ Kb7-c7 Be4-b1 Re1-e8 Ra8xe8 Kc7-d7 Re8-e2 Kd7-c7 Rh3-c3+ Kc7-b8 a2-a1Q Kb8-b7 Re2-e7+ Kb7-b6 Qa1-a7+ Kb6-b5 Rc3-c5+
33/64 02:23 840,620k 5,846k -M26 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-d6 a4-a3 Rc7-e7 a3-a2 Re7-e1 Kc3-b4 Kd6-e7 Rh3-e3+ Re1xe3 a2-a1Q Re3-e4 Ra8-a7+ Ke7-d6 Qa1-a5 Re4xc4+ Kb4xc4 Kd6-c6 Qa5-c7+
34/64 02:25 851,751k 5,834k -M26 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-d6 a4-a3 Rc7-e7 a3-a2 Re7-e1 Kc3-b4 Kd6-e7 Rh3-e3+ Re1xe3 a2-a1Q Re3-e4 Ra8-a7+ Ke7-d6 Qa1-a5 Re4xc4+ Kb4xc4 Kd6-c6 Qa5-c7+
35/64 02:38 914,352k 5,779k -M26 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Qd4-c3+ Kb3-a4 Kd1-e2 Qa2xc4+ Qc3xc4+ Be6xc4+ d2-d3 Rh8-h2+ Ke2-f3 Rh2-h3+ Kf3-e4 Bc4xd3+ Ke4-e5 a7-a5 Rg1-c1 Ka4-b3 Rc1-c7 a5-a4 Rc7-b7+ Kb3-c3 Rb7-c7+ Bd3-c4 Ke5-d6 a4-a3 Rc7-e7 a3-a2 Re7-e1 Kc3-b4 Kd6-e7 Rh3-e3+ Re1xe3 a2-a1Q Re3-e4 Ra8-a7+ Ke7-d6 Qa1-a5 Re4xc4+ Kb4xc4 Kd6-c6 Qa5-c7+
36/64 04:10 1,389,316k 5,536k -M23 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Be6-c4 Qd4-d7+ Ka4-b4 Qd7-b7+ Bc4-b5 Rg3-g4+ Kb4-a5 Qb7-c7+ Ka5-a6 Qc7-d6+ Ka6-b7 c5-c6+ Kb7-b6 c6-c7+ Kb6-b7 c7-c8Q+ Ra8xc8 Qd6-e7+ Rc8-c7 Qe7-e4+ Kb7-b8 Kd1-e1 Rc7-c1+ Ke1-f2 Qa2xd2+ Kf2-g3 Rc1-c3+ Qe4-e3 Rc3xe3+ Kg3-f4 Qd2-d4+
37/64 04:22 1,449,477k 5,526k -M23 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Be6-c4 Qd4-d7+ Ka4-b4 Qd7-b7+ Bc4-b5 Rg3-g4+ Kb4-a5 Qb7-c7+ Ka5-a6 Qc7-d6+ Ka6-b7 c5-c6+ Kb7-b6 c6-c7+ Kb6-b7 c7-c8Q+ Ra8xc8 Qd6-e7+ Rc8-c7 Qe7-e4+ Kb7-b8 Kd1-e1 Rc7-c1+ Ke1-f2 Qa2xd2+ Kf2-g3 Rc1-c3+ Qe4-e3 Rc3xe3+ Kg3-f4 Qd2-d4+
38/64 04:22 1,449,501k 5,526k -M23 Qf3-f4+ Kd6-c6 Qf4-e4+ Kc6-c5 Qe4-e5+ Kc5-b4 Qe5-b5+ Kb4-a3 Qb5-c5+ Ka3-b2 Qc5xd4+ Kb2xb3 Rg1-g3+ Kb3-a4 c4-c5+ Be6-c4 Qd4-d7+ Ka4-b4 Qd7-b7+ Bc4-b5 Rg3-g4+ Kb4-a5 Qb7-c7+ Ka5-a6 Qc7-d6+ Ka6-b7 c5-c6+ Kb7-b6 c6-c7+ Kb6-b7 c7-c8Q+ Ra8xc8 Qd6-e7+ Rc8-c7 Qe7-e4+ Kb7-b8 Kd1-e1 Rc7-c1+ Ke1-f2 Qa2xd2+ Kf2-g3 Rc1-c3+ Qe4-e3 Rc3xe3+ Kg3-f4 Qd2-d4+
Top
jkominek
Posts: 98
Joined: Tue Sep 04, 2018 5:33 am
Full name: John Kominek

Re: Details about Leela Chalange in Jerusalem

Post by jkominek »

Uri Blass wrote: ↑Sun Dec 07, 2025 2:15 am new stockfrish simply make wrong comments about the next game
https://lichess.org/xXYGF7US
25...Qxa2 is not a mistake and it force mate in at most 24 moves. Qb2 is a faster mate in at most 16 moves based on my analysis but this is not a good reason to claim that 25....Qxa2 is a mistake and the small evaluation in the site is clearly absurd. of the stupid NN and old engines can see higher evaluation based on material also at small depthes

[d]6r/p4p2/3kb1p1/6P1/2Pp4/qP3Q2/P2P4/3K2R1 b - - 4 25
I can see your reason for complaint. The inaccuracy/mistake/blunder detector is a layer of application-specific software that runs on top of stockfish. In scanning for large evaluation deltas it relies on stockfish multipv mode for the raw numbers. Which lines get considered for the top N depends on the evolving move ordering. Move ordering is tuned according to elo gains. When you are in the realm of +5 pawns elo optimization has little influence on move ordering for the purpose of finding quick mates. Meaning, you may not get what you want.

When I go to Lichess for analysis the first thing I do is change the analysis engine from the default Stockfish 17.1 7MB NNUE to the normal 79MB NNUE, set multipv=5, and up the search time, thread counts, and hash size. With those settings 25.Qf3 gets an evaluation of -7.3 and 25...Qxa2 and evaluation of -7.9. (Original values from your analysis -6.3 and -3.7.) In other words, to the big net 25...Qxa2 is not only not a blunder, it is a good move.

But here was a curious thing. In the mulipv analysis of 25.Qf3 neither 25....Qxa2 nor the best move 25...Qb2 are listed in the top five. That's odd. So I took the job to "homefish" using the latest stockfish-dev and let it analyze for 15 minutes. I set multipv=45, equal to the number of legal moves in the position. 25...Qb2 comes out on top with cp=856. But 25....Qxa2 is listed in - wait for it - 33rd place!

Code: Select all

id name Stockfish dev-20251203-c109a88e
info depth 21 seldepth 46 multipv 1 score cp 856 nodes 17047684716 nps 18468723 hashfull 193 tbhits 0 time 923057 pv a3b2 f3f4 d6e7 d1e2 e7f8 g1d1 a8e8 e2f2 b2c2 d1g1 f8g8 g1f1 e6h3 f1a1 c2d3 f2g1 h8h5 c4c5 a7a5 a2a3 d3e2 f4g3 e2d2 c5c6 d2e2 c6c7
info depth 20 seldepth 58 multipv 2 score cp 806 nodes 17047684716 nps 18468723 hashfull 193 tbhits 0 time 923057 pv a8e8 f3f4 d6c6 f4e4 c6c7 e4e5 a3d6 e5a5 d6b6 a5a3 c7b7 d1c1 b7a8 a3b2 e6f5 d2d3 f5d3 b2d2 d3e4 c1b2 d4d3 g1g2 b6d4 b2a3 d4c5 a3b2 c5e5 b2a3 e5d6 b3b4
info depth 20 seldepth 82 multipv 3 score cp 804 nodes 17047684716 nps 18468723 hashfull 193 tbhits 0 time 923057 pv a8b8 f3f4 d6d7 g1f1 a3d6 f4e4 h8h2 f1f3 d7e7 f3f4 d4d3 f4f1 e7f8 e4e3 b8d8 d1c1 h2e2 e3f4 d6f4 f1f4 f8e7 f4f6 e2g2 f6f4 g2g5 c1b2 g5g2 b2c3 g2e2 f4f3 e2e5 f3f1 g6g5 a2a4
info depth 20 seldepth 41 multipv 4 score cp 804 nodes 17047684716 nps 18468723 hashfull 193 tbhits 0 time 923057 pv d6d7 g1e1 a8b8 f3f4 a3d6 e1e4 d6f4 e4f4 d7e7 d1c1 b8d8 f4e4 h8h1 c1b2 h1h2 b2c2 h2g2 e4e5 d4d3 c2c1 g2g1 c1b2 g1d1 b2c3
info depth 20 seldepth 58 multipv 5 score cp 802 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a8d8 f3f4 d6d7 g1f1 a3d6 f4f3 d4d3 d1c1 h8h2 f1d1 d6e5 c1b1 d7e8 a2a3 h2e2 b3b4 e5e4 f3e4 e2e4 c4c5 e4e2 b1b2 e8e7
info depth 20 seldepth 63 multipv 6 score cp 802 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv d6e7 g1g3 a8d8 f3f6 e7d7 f6d4 a3d6 d4d6 d7d6 a2a3 e6f5 b3b4 h8h2 d1e1 d8e8 e1f1 h2d2 g3f3 f5d3 f3d3 d2d3
info depth 20 seldepth 65 multipv 7 score cp 800 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a8c8 f3f4 d6d7 f4d4 a3d6 d4d6 d7d6 d1c2 h8h2 c2c3 c8h8 g1d1 e6f5 c3b2 h8h3
info depth 20 seldepth 53 multipv 8 score cp 799 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv d6c7 f3e2 a8e8 e2e5 a3d6 e5a5 d6b6 a5a3 c7b7 d2d3 b7a8 g1g2 b6b7 g2d2 e6c4 d1c1 c4d5 c1b2 e8c8 a3a5 b7c6 d2d1 h8h2 b2a1 c6c3 a5c3 c8c3
info depth 20 seldepth 65 multipv 9 score cp 785 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv d4d3 f3f4 d6d7 f4d4 a3d6 d4b2 h8h2 b2c3 a8d8 d1c1 h2e2 c1b2 d6e5 c3e5 e2e5 b2c3 d7e7 a2a4 e5e4
info depth 20 seldepth 51 multipv 10 score cp 783 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv e6f5 f3d5 d6c7 d5e5 a3d6 e5a5 c7d7 g1f1 d7e7 a2a3 e7f8 a5b4 a8d8 f1f5 g6f5 d1c2 h8h1 c2b2 d6b4 a3b4 h1h2 b2c2 d4d3 c2c3 f8e7 b4b5 h2h1 c3b2 h1d1 b2c3 d1c1 c3b4 c1c2 b4c5 d8c8 c5d4
info depth 20 seldepth 58 multipv 11 score cp 776 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a3c5 d2d3 c5f5 f3g3 d6e7 d1c1 e7f8 g3d6 f8g8 d6d4 h8h2 b3b4 a8e8 d4e3 e6d7 e3g3 h2h3 g3d6 f5f2 d6d7 f2g1 c1b2 g1f2 b2a3
info depth 20 seldepth 55 multipv 12 score cp 776 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv e6c4 g1e1 c4d5 f3f4 d6c6 f4d4 d5f3 d1c2 a3c5 d4c5 c6c5 e1f1 h8h3 c2b2 c5d6 b2a3 a8c8 a3b4 d6e5 f1e1 e5f4 e1e7 f4g3 e7f7
info depth 20 seldepth 63 multipv 13 score cp 775 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a8g8 f3f4 d6c6 f4e4 c6c7 e4e5 a3d6 e5b5 g8b8 b5a5 c7b7 g1e1 b8c8 a5e5 d6e5 e1e5 c8e8 e5c5 e6f5 d1c1 h8h1 c1b2 h1h2 a2a4 b7a8 c5d5 h2d2 b2a3 d4d3 a4a5 d2c2 a5a6 d3d2 d5d6 f5g4 b3b4 d2d1q d6d1 g4d1
info depth 20 seldepth 67 multipv 14 score cp 773 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a8f8 f3f4 d6c6 f4e4 c6c7 g1f1 a3d6 d1c2 f8e8 c4c5 d6d5 e4d5 e6d5 c2d3 c7c6 d3d4 e8e4 d4c3 d5e6
info depth 20 seldepth 52 multipv 15 score cp 767 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv d6c5 f3f6 e6g4 g1g4 h8h1 d1e2 a8e8 e2f2 h1f1 f2f1 a3c1 f1f2 c1d2 f2g3 e8e3 f6f3 e3f3 g3f3 d2e3 f3g2 e3e2 g2g3 d4d3 a2a3 d3d2
info depth 20 seldepth 54 multipv 16 score cp 765 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a3a5 d1c1 a5e5 f3b7 a8b8 b7a6 d6e7 a6a3 e5d6 c4c5 h8c8 a3a7 e7f8 g1h1 d6c5 a7c5 c8c5 c1b2 f8e7 d2d3 b8b3
info depth 20 seldepth 54 multipv 17 score cp 758 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a3b4 g1f1 b4c5 f3g3 d6d7 d1c2 e6c4 b3b4 c5c6 c2b2 c4f1 g3g4 c6e6 g4f4 h8h1 f4d4 e6d6 d4g4 d7d8 g4e4 d6d2 b2b3
info depth 20 seldepth 49 multipv 18 score cp 756 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8e8 f3f4 d6d7 f4e4 e8h8 g1f1 a3d6 e4b7 d6c7 b7e4 a8d8 d1c1 d7e7 f1f6 c7d6 e4b7 e7f8 b7a7 d6e5 f6e6 e5e6 a7a5 h8h1
info depth 20 seldepth 31 multipv 19 score cp 754 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8c8 g1h1 c8e8 f3f4 d6d7 h1h7 a3d6 f4f2 d6e5 d1c1 d7e7 h7h2 d4d3 c1b1 e8h8 h2h8 a8h8
info depth 20 seldepth 45 multipv 20 score cp 753 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a3a6 g1g3 a6a3 f3f4 d6e7 f4f6 e7d7 f6d4 a3d6 d4g1 a8d8 d1c2 d7e8 d2d3 e8f8 d3d4 d6d4 g1d4 d8d4 c2c3
info depth 20 seldepth 75 multipv 21 score cp 750 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8b8 g1h1 b8e8 f3f4 d6d7 f4e4 a3c5 e4b7 c5c7 b7e4 c7c6 e4d4 c6d6 d4c3 a8d8 c4c5 d6e5 c3e5 e6g4 d1c2 e8e5 d2d4 e5g5 c2c3 g4e6 h1d1 g5g2
info depth 20 seldepth 43 multipv 22 score cp 748 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8d8 g1h1 d8e8 f3f4 d6d7 f4d4 a3d6 d4e4 d7c7 e4f3 d6d4 f3f6 a8d8 f6d4 d8d4 h1h7 e8d8 h7h2 e6f5 d1e1 d8e8 e1d1 f5g4 d1c1 e8e2 h2e2 g4e2
info depth 20 seldepth 62 multipv 23 score cp 745 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8g8 f3f4 d6d7 g1h1 g8e8 f4e4 a3c5 e4b7 c5c7 b7e4 c7c6 e4d4 c6d6 d4c3 a8d8 a2a4 d7c8 b3b4 e6f5 c4c5
info depth 20 seldepth 63 multipv 24 score cp 744 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8f8 g1h1 f8e8 h1h7 a3c5 h7h6 c5e5 d1c1 d4d3 f3d3 d6e7 h6h2 a8d8 h2e2 e5a1 d3b1 a1b1 c1b1 d8d4
info depth 20 seldepth 77 multipv 25 score cp 728 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv e6d7 f3f4 d6c6 f4e4 c6c7 e4e5 a3d6 e5a5 d6b6 a5e5 c7b7 e5e7 a8d8 g1f1 h8e8 e7a3 d7f5 a3a4 b7a8 d1c1 d8c8 f1f5 g6f5 g5g6 e8e6
info depth 20 seldepth 59 multipv 26 score cp 714 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a7a5 g1e1 a3c5 e1e4 d6d7 e4f4 a8b8 f4f7 e6f7 f3f7 c5e7 f7f3 e7d6 d1c2 d4d3 c2c3 d6e5 c3d3 d7e6 f3f6 e5f6 g5f6 h8f8 d3c3 f8f6 d2d3
info depth 20 seldepth 39 multipv 27 score cp 712 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv e6h3 f3f7 h3d7 f7f4 d6c6 f4d4 a3c5 d4f6 c6c7 f6f4 c7b7 d2d4 c5f5 f4f5 d7f5 d4d5 h8h2 g1e1 a8h8 e1e7 b7a8 b3b4 h2a2 e7e1 a2a1 d1e2
info depth 20 seldepth 44 multipv 28 score cp 708 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a7a6 g1e1 a3c5 d1c1 d6d7 f3b7 c5c7 b7e4 a8c8 e1e2 c7d6 e4g2 d4d3 e2e3 h8h2 g2b7 c8c7 b7e4 h2e2 c1d1 e2e3 d2e3 d3d2
info depth 20 seldepth 55 multipv 29 score cp 699 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv e6c8 f3f7 c8d7 f7f4 d6c6 f4d4 a3c5 d4f6 c6c7 f6f4 c7b7 d2d4 c5f5 f4f5 d7f5 d4d5 h8h2 g1e1 a8h8 d1c1 h2a2
info depth 20 seldepth 48 multipv 30 score cp 637 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv f7f5 f3d3 a3c5 d1c1 d6d7 c1b1 c5e5 b1b2 a8c8 g1e1 e5d6 b2a1 h8e8 e1h1 d7d8 h1h4 f5f4
info depth 20 seldepth 42 multipv 31 score cp 619 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv f7f6 f3f4 d6d7 f4e4 a3c5 d1c1 f6f5 e4b7 c5c7 b7b5 d7d8 b5a6 h8e8 g1h1 a8c8 d2d3 c7b6 a6a3 f5f4 c1d2 f4f3 h1h7
info depth 20 seldepth 47 multipv 32 score cp 607 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv h8h4 f3g3 d6e7 g3h4 a3a2 d1e2 a2b3 g1c1 a8c8 h4d4 e6c4 e2f2 b3b6 f2e3 b6e6 e3f2 e6f5 f2g1 f5g5 g1f2 g5b5
info depth 20 seldepth 81 multipv 33 score cp 563 nodes 17047684716 nps 18468703 hashfull 193 tbhits 0 time 923058 pv a3a2 f3f4 d6c6 f4e4 c6b6 e4d4 b6a6 d4d6 a6b7 d6b4 b7c8 b4c5 c8d8 c5d4 e6d7 d4h8 d8c7 h8e5 c7b7 d1c1 a2b3 e5d5 d7c6 g1h1
For a second option I reverted to stockfish 16 and turned off NNUE. I let it analyze for half an hour. It finds a mating line in 14 for 25...Qb2 and, in 4th place, a mating line in 22 moves for 25....Qxa2.

Code: Select all

id name Stockfish 16
info depth 63 seldepth 28 multipv 1 score mate 14 nodes 190714673154 nps 97582710 hashfull 997 tbhits 0 time 1954390 pv a3b2 f3f4 d6d7 f4e4 a8c8 e4b7 d7e8 d1e2 h8h3 g1d1 d4d3 e2f1 b2d4 b7g2 c8c5 g2a8 e8e7 a8b7 e7f8 b7a8 f8g7 a8g2 c5f5 g2f3 f5f3 f1g2 d4g4
info depth 63 seldepth 30 multipv 2 score mate 15 nodes 190714673154 nps 97582710 hashfull 997 tbhits 0 time 1954390 pv a8e8 f3f4 d6d7 f4e4 d7c7 e4d4 h8h2 g1f1 c7c8 d4e4 e6d7 e4d5 a3a2 d1c1 h2h3 d5c5 c8d8 c5a7 a2a7 c1b2 e8e2 f1d1 a7e3 c4c5 e3b3 b2c1 h3c3 d2c3 b3c2
info depth 62 seldepth 34 multipv 3 score mate 17 nodes 190714673154 nps 97582710 hashfull 997 tbhits 0 time 1954390 pv a8d8 f3f4 d6d7 f4d4 d7c8 d4e4 e6f5 e4c6 c8b8 c6b5 b8c7 b5e5 c7c8 g1e1 a3b4 e5e3 h8h3 e3f2 h3f3 d1e2 f3f2 e2f2 b4d2 e1e2 d2f4 f2g2 f5h3 g2h3 f4f3 h3h2 d8h8 h2g1 h8h1
info depth 62 seldepth 42 multipv 4 score mate 21 nodes 190714673154 nps 97582710 hashfull 997 tbhits 0 time 1954390 pv a8c8 f3f4 d6c6 f4e4 c6c7 e4e5 c7b7 e5b5 b7a8 b5e5 a3a2 e5e4 a8b8 e4f4 b8b7 f4e4 c8c6 d1e2 h8h3 e2e1 h3h2 g1g2 h2h1 e1e2 a2a1 g2f2 a1d1 e2d3 h1h3 f2f3 h3f3 e4f3 d1f3 d3c2 c6a6 c2c1 f3b3 d2d3 a6a1 c1d2 b3b2
info depth 62 seldepth 44 multipv 5 score mate 22 nodes 190714673154 nps 97582710 hashfull 997 tbhits 0 time 1954390 pv a3a2 f3f4 d6c5 f4e5 c5b4 e5b5 b4a3 b5c5 a3b2 c5d4 b2b3 g1g3 b3a4 c4c5 a4b5 d4d3 a2c4 d3c4 e6c4 c5c6 b5c6 d1c2 c6c5 c2c3 a8b8 c3c2 h8h1 g3f3 c4e2 f3a3 c5d4 a3a4 e2c4 d2d3 h1h2 c2c1 d4c3 a4a3 b8b3 c1d1 b3a3 d3c4 a3a1
bestmove a3b2 ponder f3f4

I then repeated with the NNUE activated. Stockfish 16 still finds mating lines but they are longer than what the HCE-based search discovers.

Code: Select all

id name Stockfish 16
info depth 66 seldepth 34 multipv 1 score mate 17 nodes 129605167019 nps 68845793 hashfull 986 tbhits 0 time 1882543 pv a3b2 f3f4 d6c6 f4e4 c6b6 c4c5 b6c5 e4c2 b2c2 d1c2 h8h2 g1c1 a8c8 c2b2 c5b5 c1c8 e6c8 b2c2 c8f5 c2b2 h2d2 b2c1 d2a2 c1d1 b5b4 d1e1 f5d3 e1d1 b4b3 d1e1 b3c3 e1d1 a2a1
info depth 66 seldepth 36 multipv 2 score mate 18 nodes 129605167019 nps 68845793 hashfull 986 tbhits 0 time 1882543 pv a8d8 f3f4 d6c6 d1e2 a3a2 e2f2 c6b6 g1f1 a2b3 f2g1 e6c4 f4f6 b6b5 f6f3 b3f3 f1f3 d8e8 f3f4 b5c5 f4f2 e8e1 g1g2 c4d5 f2f3 e1h1 g2f2 h1h2 f2g3 h8h3 g3g4 h3f3 d2d3 f3e3 g4f4 h2h4
info depth 65 seldepth 38 multipv 3 score mate 19 nodes 129605167019 nps 68845793 hashfull 986 tbhits 0 time 1882543 pv d6c7 f3f4 a3d6 g1f1 e6f5 d1c1 h8h2 c4c5 d6f4 f1f4 a8d8 b3b4 d8e8 f4f1 e8e2 f1d1 c7c6 b4b5 c6c5 b5b6 c5b6 c1b2 e2d2 d1d2 h2d2 b2c1 d2a2 c1d1 b6b5 d1c1 f5d3 c1d1 b5b4 d1e1 b4c3 e1d1 a2a1
info depth 65 seldepth 46 multipv 4 score mate 23 nodes 129605167019 nps 68845793 hashfull 986 tbhits 0 time 1882543 pv a3a2 f3f4 d6c5 f4e5 c5b4 e5b5 b4a3 b5c5 a3b2 c5d4 b2b3 g1g3 b3a4 c4c5 e6c4 d4d7 a4b4 d7b7 c4b5 g3g4 b4a5 b7c7 a5a6 c7d6 a6b7 c5c6 b7b6 c6c7 b6b7 c7c8q a8c8 d6e7 c8c7 e7e4 b7b8 d1e1 c7c1 e1f2 a2d2 e4e2 d2e2 f2g3 e2e3 g3g2 b5f1
info depth 65 seldepth 46 multipv 5 score mate 23 nodes 129605167019 nps 68845793 hashfull 986 tbhits 0 time 1882543 pv d6c5 f3f4 a3a2 f4e5 c5b4 e5b5 b4a3 b5c5 a3b2 c5d4 b2b3 g1g3 b3a4 c4c5 e6c4 d4d7 a4b4 d7b7 c4b5 g3g4 b4a5 b7c7 a5a6 c7d6 a6b7 c5c6 b7b6 c6c7 b6b7 c7c8q a8c8 d6e7 c8c7 e7e4 b7b8 d1e1 c7c1 e1f2 a2d2 e4e2 d2e2 f2g3 e2e3 g3g2 b5f1
bestmove a3b2 ponder f3f4
Certainly I am not the first person to notice the weaknesses of stockfish as a mate finder. What's less obvious, and what your example spotlights, is that when the material imbalance is crushing a good old HCE is better suited to finding quick mating lines. Also, the latest stockfish shows that it can bury good moves deep down into its move ordering, which hinders multipv analysis. I think that's a new observation.
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

analysis of game 10

[pgn][Event "casual classical game"]
[Site "https://lichess.org/xXYGF7US"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "JewishBeauty"]
[Result "0-1"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "100"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 Nf6 2. e3 d5 3. c4 e6 4. Rg1 c5 5. g4 Nc6 6. g5 Nd7 7. b3 Nde5 8.
Nxe5 Nxe5 9. f4 Nc6 10. Bg2 h6 11. h4 hxg5 12. hxg5 g6 13. Bb2 d4 14. Bxc6+
bxc6 15. Qf3 Qd6 16. Na3 Bg7 17. Nc2 e5 18. fxe5 Bxe5 19. exd4 Bxd4 20.
Nxd4 cxd4 21. Kd1 Be6 22. Ba3 {After Qxa3 it is impossible to prevent mate
based on analysis but this set some traps that black did not fall into
them} Qxa3 {mate in at most 20 moves} 23. Qxc6+ Ke7 {mate in at most 19
moves(Qf3 is best)} 24. Qb7+ Kd6 {mate in at most 16 moves} 25. Qf3 Qxa2
{not the fastest mate but the computer can see a forced mate also after
this move till the end of the game} (25. .. Qb2 {is a faster mate}) 26.
Qf4+ Kc6 27. Qe4+ Kc5 28. Qe5+ Kb4 29. Qb5+ (29. Qd6+ {this was a longer
line until black get out of check but black finally can escape} Kxb3
{forced} 30. Rg3+ Kxc4 31. Qc6+ Kb4 32. Qb7+ Kc5 33. Qc7+ Kd5 34. Qb7+ Kd6
35. Qb4+ Kc6) 29. .. Ka3 30. Qc5+ Kb2 (30. .. Kxb3?? {was a losing option}
31. Qb5+ Ka3 32. Rg3+) 31. Qxd4+ Kxb3! (31. .. Ka3? {is a draw} 32. Qc5+
Kb2 33. Qe5+) 32. Rg3+ Ka4 {other options lose} 33. c5+ {only check for
white that does not lose rook or queen} Qc4 34. Qa1+ {only logical check}
Kb5 35. Qb2+ Kc6 36. d3 Rh1+ 37. Ke2 Rh2+ 38. Ke3 Qxc5+ 39. d4 Rxb2 40.
dxc5 Rb3+ 41. Kf4 Rxg3 42. Kxg3 a5 43. Kf4 a4 44. Kf3 a3 45. Ke3 a2 46. Kd3
a1=Q 47. Kd2 Ra3 48. Kc2 Qa2+ 49. Kd1 Qb2 50. Ke1 Ra1# {Black wins by
checkmate.} 0-1
[/pgn]
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User avatar
towforce
Posts: 12670
Joined: Thu Mar 09, 2006 12:57 am
Location: Birmingham UK
Full name: Graham Laight

Re: Details about Leela Chalange in Jerusalem

Post by towforce »

Uri Blass wrote: ↑Mon Dec 08, 2025 7:09 pm analysis of game 10

[pgn][Event "casual classical game"]
[Site "https://lichess.org/xXYGF7US"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "JewishBeauty"]
[Result "0-1"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "100"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 Nf6 2. e3 d5 3. c4 e6 4. Rg1 c5 5. g4 Nc6 6. g5 Nd7 7. b3 Nde5 8.
Nxe5 Nxe5 9. f4 Nc6 10. Bg2 h6 11. h4 hxg5 12. hxg5 g6 13. Bb2 d4 14. Bxc6+
bxc6 15. Qf3 Qd6 16. Na3 Bg7 17. Nc2 e5 18. fxe5 Bxe5 19. exd4 Bxd4 20.
Nxd4 cxd4 21. Kd1 Be6 22. Ba3 {After Qxa3 it is impossible to prevent mate
based on analysis but this set some traps that black did not fall into
them} Qxa3 {mate in at most 20 moves} 23. Qxc6+ Ke7 {mate in at most 19
moves(Qf3 is best)} 24. Qb7+ Kd6 {mate in at most 16 moves} 25. Qf3 Qxa2
{not the fastest mate but the computer can see a forced mate also after
this move till the end of the game} (25. .. Qb2 {is a faster mate}) 26.
Qf4+ Kc6 27. Qe4+ Kc5 28. Qe5+ Kb4 29. Qb5+ (29. Qd6+ {this was a longer
line until black get out of check but black finally can escape} Kxb3
{forced} 30. Rg3+ Kxc4 31. Qc6+ Kb4 32. Qb7+ Kc5 33. Qc7+ Kd5 34. Qb7+ Kd6
35. Qb4+ Kc6) 29. .. Ka3 30. Qc5+ Kb2 (30. .. Kxb3?? {was a losing option}
31. Qb5+ Ka3 32. Rg3+) 31. Qxd4+ Kxb3! (31. .. Ka3? {is a draw} 32. Qc5+
Kb2 33. Qe5+) 32. Rg3+ Ka4 {other options lose} 33. c5+ {only check for
white that does not lose rook or queen} Qc4 34. Qa1+ {only logical check}
Kb5 35. Qb2+ Kc6 36. d3 Rh1+ 37. Ke2 Rh2+ 38. Ke3 Qxc5+ 39. d4 Rxb2 40.
dxc5 Rb3+ 41. Kf4 Rxg3 42. Kxg3 a5 43. Kf4 a4 44. Kf3 a3 45. Ke3 a2 46. Kd3
a1=Q 47. Kd2 Ra3 48. Kc2 Qa2+ 49. Kd1 Qb2 50. Ke1 Ra1# {Black wins by
checkmate.} 0-1
[/pgn]

Extraordinary. JewishBeauty was a human player, right? The pgn has both players as human.
Human chess is partly about tactics and strategy, but mostly about memory
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

towforce wrote: ↑Tue Dec 09, 2025 2:58 pm
Uri Blass wrote: ↑Mon Dec 08, 2025 7:09 pm analysis of game 10

[pgn][Event "casual classical game"]
[Site "https://lichess.org/xXYGF7US"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "JewishBeauty"]
[Result "0-1"]
[BlackElo "2400"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "100"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 Nf6 2. e3 d5 3. c4 e6 4. Rg1 c5 5. g4 Nc6 6. g5 Nd7 7. b3 Nde5 8.
Nxe5 Nxe5 9. f4 Nc6 10. Bg2 h6 11. h4 hxg5 12. hxg5 g6 13. Bb2 d4 14. Bxc6+
bxc6 15. Qf3 Qd6 16. Na3 Bg7 17. Nc2 e5 18. fxe5 Bxe5 19. exd4 Bxd4 20.
Nxd4 cxd4 21. Kd1 Be6 22. Ba3 {After Qxa3 it is impossible to prevent mate
based on analysis but this set some traps that black did not fall into
them} Qxa3 {mate in at most 20 moves} 23. Qxc6+ Ke7 {mate in at most 19
moves(Qf3 is best)} 24. Qb7+ Kd6 {mate in at most 16 moves} 25. Qf3 Qxa2
{not the fastest mate but the computer can see a forced mate also after
this move till the end of the game} (25. .. Qb2 {is a faster mate}) 26.
Qf4+ Kc6 27. Qe4+ Kc5 28. Qe5+ Kb4 29. Qb5+ (29. Qd6+ {this was a longer
line until black get out of check but black finally can escape} Kxb3
{forced} 30. Rg3+ Kxc4 31. Qc6+ Kb4 32. Qb7+ Kc5 33. Qc7+ Kd5 34. Qb7+ Kd6
35. Qb4+ Kc6) 29. .. Ka3 30. Qc5+ Kb2 (30. .. Kxb3?? {was a losing option}
31. Qb5+ Ka3 32. Rg3+) 31. Qxd4+ Kxb3! (31. .. Ka3? {is a draw} 32. Qc5+
Kb2 33. Qe5+) 32. Rg3+ Ka4 {other options lose} 33. c5+ {only check for
white that does not lose rook or queen} Qc4 34. Qa1+ {only logical check}
Kb5 35. Qb2+ Kc6 36. d3 Rh1+ 37. Ke2 Rh2+ 38. Ke3 Qxc5+ 39. d4 Rxb2 40.
dxc5 Rb3+ 41. Kf4 Rxg3 42. Kxg3 a5 43. Kf4 a4 44. Kf3 a3 45. Ke3 a2 46. Kd3
a1=Q 47. Kd2 Ra3 48. Kc2 Qa2+ 49. Kd1 Qb2 50. Ke1 Ra1# {Black wins by
checkmate.} 0-1
[/pgn]

Extraordinary. JewishBeauty was a human player, right? The pgn has both players as human.
JewishBeauty was a human player.

I do not know why the pgn has both as humans and I copied from lichess but maybe something was wrong in copying
It seems the original pgn did not say human or computer and when I copied to arena it assumed both are humans
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

game 11

[pgn][Event "casual classical game"]
[Site "https://lichess.org/v8G8lftq"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "yorm21"]
[Result "1-0"]
[BlackElo "2000"]
[WhiteElo "2400"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "47"]
[WhiteType "human"]
[BlackType "program"]

1. e4! d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 Nf6 5. d4 e6 6. Nf3 c6 {passive it
seems c5 is better} (6. .. c5) 7. Qe2 Be7 8. Bd3 b5 9. O-O Nbd7 10. Re1 Nb6
{prefer developing different pieces and do not like moving the same piece
twice} (10. .. Bb7) 11. Ne5 Qc7 (11. .. Bb7) 12. Qf3 Bb7 13. Ne4 Nbd5 (13.
.. Nbd7) 14. Ng5 Rf8 15. a4 Qc8? {Mistake. Nb4 was best.} (15.
.. Nb4) 16. Nexf7 Rxf7 17. Bxh7 Rf8?? {Blunder. Bb4 was best now black is
not winning} (17. .. Bb4 18. c3 Re7) 18. Bg6+ Kd7 19. Nxe6 c5?? {Blunder.
Ng8 or Rh8 was best. and leading to equal position} (19. .. Ng8 20. Bf5
Rxf5 21. Qxf5 a5) 20. Bf5 Kc6 {Black offers draw} 21. dxc5 Qb8 (21. .. Bxc5
22. axb5+) 22. axb5+ {mate in at most 25 moves} Kxb5? {now mate in 4} (22.
.. Kd7 23. Nxf8+ Ke8 24. Ne6 Bxc5 25. Bg6+) 23. Qb3+ Kc6? (23. .. Ka5 24.
Bd2+ Nb4 25. Qxb4+ Ka6 26. Qa5#) 24. Qa4# {White wins by checkmate.} 1-0
[/pgn]
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

I see that I did a mistake in the link to game 12 and here is the relevant link
https://lichess.org/jJAiwatI
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

and here is analysis of game 12 when the human prefered to force a draw by repetition and not try to win inspite of 2 knights odds.

[pgn][Event "casual classical game"]
[Site "https://lichess.org/jJAiwatI"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "eyal20000"]
[Result "1/2-1/2"]
[BlackElo "2400"]
[WhiteElo "2000"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/R1BQKB1R w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "24"]
[WhiteType "program"]
[BlackType "human"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 Qe7 6. O-O Nf6 7. Qf3 a6
{Inaccuracy and it is better to develop piecec by Bd7 or castling} 8. Bxc6+
bxc6 9. Qg3 Nh5 10. Qf3 Nf6 11. Qg3 Nh5 (11. .. d4 {is better but the human
decided that a draw is enough for him}) 12. Qf3 Nf6? {The game is a draw.}
(12. .. g6 {was best inspite of the facr that it is losing a pawn because a
repetition is not good for black} 13. fxe5 Bxe5 14. Bxe5 Qxe5 15. Qxf7+)
1/2-1/2
[/pgn]
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Uri Blass
Posts: 11081
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Details about Leela Chalange in Jerusalem

Post by Uri Blass »

game 13 when the human could probably lose in case he continued the game. There is a forced line when black is losing the queen.

[Event "casual classical game"]
[Site "https://lichess.org/H64s8I58"]
[Date "2025.11.29"]
[Round "?"]
[White "LeelaPieceOdds"]
[Black "AslavaA"]
[Result "0-1"]
[BlackElo "2400"]
[WhiteElo "2200"]
[TimeControl "5400+30"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/R1BQKB1R w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "51"]
[WhiteType "human"]
[BlackType "human"]

1. d4 d5 2. c3 Bf5 3. Qb3 b6 4. f3 Nf6 (4. .. e6 {is better and black does
not lose a tempo by Nf6-g8 if white continue the same as the game} 5. g4
Bg6 6. h4 h5 7. g5) 5. g4 Bg6 6. h4 h5 (6. .. h6) 7. g5 Ng8 8. e4 dxe4 9.
d5 Qd6 10. Be3 exf3 11. Qa4+ Nd7 12. O-O-O Kd8 (12. .. Qe5 {with the idea
Qe4 or Qxe3+ is better}) 13. Rh3 Nc5 (13. .. e5 {to develop piecec is
better}) 14. Qc4 Bf5 15. Rxf3 Bg4 16. Qe2 Bxf3?! {Inaccuracy. f6 or Nd7
were better.} 17. Qxf3 Nd7?? {Blunder. Rb8 was best and now it is a draw.}
18. Bf4 Ne5 19. Bxe5 Qxe5 20. d6 Rb8 {White could not continue the game
because of a bug caused by trying to take back a move in another game but
white can win the black queen with a draw score so white could probably win
the game.} 21. dxc7+ Kxc7 22. Bg2 Qb5 23. Rd5 Qe8 24. Qf4+ e5 25. Rxe5 Qxe5
(25. .. Bd6 26. Qc4+ Kd8 27. Rxe8+) 26. Qxe5+ {all black moves from move
21are forced not to lose and only at move 25 black has 2 options} 0-1
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