1. d4 e5
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
Is now scoring worse than the Grob
It may be a mate in n for white already.
Can you find any line of defense? What's your drawing line against white strongest attack?
Is the Englund Gambit lost?
Moderators: hgm, Rebel, chrisw
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Ovyron
- Posts: 4556
- Joined: Tue Jul 03, 2007 4:30 am
Is the Englund Gambit lost?
This position:
1. d4 e5
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
Is now scoring worse than the Grob
It may be a mate in n for white already.
Can you find any line of defense? What's your drawing line against white strongest attack?
1. d4 e5
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -
Is now scoring worse than the Grob
It may be a mate in n for white already.
Can you find any line of defense? What's your drawing line against white strongest attack?
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Werewolf
- Posts: 1796
- Joined: Thu Sep 18, 2008 10:24 pm
Re: Is the Englund Gambit lost?
A main line to kick the discussion off would be good.
(edit: 2.de Nc6 3.Nf3 Qe7 I'm guessing)
(edit: 2.de Nc6 3.Nf3 Qe7 I'm guessing)
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Dann Corbit
- Posts: 12538
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Is the Englund Gambit lost?
Here is a starting point. I should have a much better plan tomorrow:
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 60; ce 127; acs 7080; acn 270806000; pv dxe5 d6 Nf3 Nc6 Bg5 Qd7 exd6 Bxd6 Nc3 h6 Bh4 Nge7 Nb5 Nf5 Nxd6+ Nxd6 e3 Nf5 Qxd7+ Bxd7 O-O-O Nxh4 Nxh4 Ne5 Be2 O-O-O a3 g6 Rd4 Rhe8 Nf3 Ng4 Rf1 c5 Rd5 b6 Rxd7 Kxd7 Bb5+ Ke6 Bxe8 Rxe8 Kd2 Nf6 Ke2 Rd8 Nd2 Ng4 h3 Ne5 Rd1 f6 f4 Nc6 b3 f5 Nf3 Rxd1 Kxd1 b5 Ke2 Ne7 Kd3 a6 g3 Nd5 Nd2 Kd6 e4 fxe4+ Nxe4+ Kc6 a4 ; bm dxe5;
Unfortunately, all my high end machines are busy right now, and I can only give 30 cores to the effort.
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 60; ce 127; acs 7080; acn 270806000; pv dxe5 d6 Nf3 Nc6 Bg5 Qd7 exd6 Bxd6 Nc3 h6 Bh4 Nge7 Nb5 Nf5 Nxd6+ Nxd6 e3 Nf5 Qxd7+ Bxd7 O-O-O Nxh4 Nxh4 Ne5 Be2 O-O-O a3 g6 Rd4 Rhe8 Nf3 Ng4 Rf1 c5 Rd5 b6 Rxd7 Kxd7 Bb5+ Ke6 Bxe8 Rxe8 Kd2 Nf6 Ke2 Rd8 Nd2 Ng4 h3 Ne5 Rd1 f6 f4 Nc6 b3 f5 Nf3 Rxd1 Kxd1 b5 Ke2 Ne7 Kd3 a6 g3 Nd5 Nd2 Kd6 e4 fxe4+ Nxe4+ Kc6 a4 ; bm dxe5;
Unfortunately, all my high end machines are busy right now, and I can only give 30 cores to the effort.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Dann Corbit
- Posts: 12538
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Is the Englund Gambit lost?
I think it should be obvious that this opening is a bad idea. Giving up a pawn for a tempo is a bad trade unless there is a clear developmental lead created. I do not see one here.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Werewolf
- Posts: 1796
- Joined: Thu Sep 18, 2008 10:24 pm
Re: Is the Englund Gambit lost?
Does it definitely give up a pawn? After 2...Nc6 and 3...Qe7 black may re-gain it. (I know 3...Qe7 is ugly as it comes, but hey)
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Cornfed
- Posts: 511
- Joined: Sun Apr 26, 2020 11:40 pm
- Full name: Brian D. Smith
Re: Is the Englund Gambit lost?
I habitually play as Black: 1.d4 e5, 2.de5 Bc5, 3.(Most any)...f6 [/b]offering the f pawn with tempo in 3/0 to 1/0 games. Hey, I've even picked up scalps of some good players I noticed almost pre-move the London with 2.Bf4...
You don't play this to 'get back the pawn'. You play this to throw your opponent into the streets with a tiny ticking clock about their necks...and watch them crumble under the pressure.
Anyway, "is the 'x' lost" posts amuse me...silly stuff and all at trying to prove something that should be self evident by people who would rather see chess as some mathematical exercise instead of a contest of wit and a struggle.
Even at the highest level - like the current Clutch tourney - you see objective 'crap' being played...but for a reason. Put up your engines aside and enjoy the struggle that is actual chess.
You don't play this to 'get back the pawn'. You play this to throw your opponent into the streets with a tiny ticking clock about their necks...and watch them crumble under the pressure.
Anyway, "is the 'x' lost" posts amuse me...silly stuff and all at trying to prove something that should be self evident by people who would rather see chess as some mathematical exercise instead of a contest of wit and a struggle.
Even at the highest level - like the current Clutch tourney - you see objective 'crap' being played...but for a reason. Put up your engines aside and enjoy the struggle that is actual chess.
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Dann Corbit
- Posts: 12538
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Is the Englund Gambit lost?
66 plies:
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 66; ce 133; acs 20280; pv dxe5 Nc6 Nf3 a6 Bf4 d5 e3 Nge7 Nc3 Be6 h3 h6 Bh2 g5 Ne2 Bg7 Ned4 Nxd4 exd4 Ng6 Qd2 Bf8 O-O-O Qd7 Kb1 O-O-O Bg3 Kb8 Bd3 Qa4 c3 c5 Bc2 Qb5 Ka1 Rc8 dxc5 Bxc5 Bd3 Qd7 Bxg6 fxg6 Qd3 Qe8 Rhe1 Rf8 Nd4 Bxd4 Qxd4 Rc4 Qb6 Qc6 Qxc6 Rxc6 Kb1 Rfc8 f3 b5 Rd4 Kb7 Red1 a5 a3 Ra8 Bf2 Rc4 Kc2 Kc6 Kc1 Re8 Rxc4+ bxc4 Kd2 a4 ; bm dxe5;
[d]rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 66; ce 133; acs 20280; pv dxe5 Nc6 Nf3 a6 Bf4 d5 e3 Nge7 Nc3 Be6 h3 h6 Bh2 g5 Ne2 Bg7 Ned4 Nxd4 exd4 Ng6 Qd2 Bf8 O-O-O Qd7 Kb1 O-O-O Bg3 Kb8 Bd3 Qa4 c3 c5 Bc2 Qb5 Ka1 Rc8 dxc5 Bxc5 Bd3 Qd7 Bxg6 fxg6 Qd3 Qe8 Rhe1 Rf8 Nd4 Bxd4 Qxd4 Rc4 Qb6 Qc6 Qxc6 Rxc6 Kb1 Rfc8 f3 b5 Rd4 Kb7 Red1 a5 a3 Ra8 Bf2 Rc4 Kc2 Kc6 Kc1 Re8 Rxc4+ bxc4 Kd2 a4 ; bm dxe5;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Ajedrecista
- Posts: 1968
- Joined: Wed Jul 13, 2011 9:04 pm
- Location: Madrid, Spain.
Re: Is the Englund Gambit lost?
Hello:
I have looked into the Encyclopedia of Chess Openings, Volume A (1979). Despite being a fairly old edition, I found the twelve first moves of a game that I think it is interesting. I analysed it with SF 11 (backward-forward analysis in my really slow hardware for today standards, getting less than 350 kN/s) and evals are slowly decreasing despite being top-3 moves most of the time. I am not saying that both white and black played the best of the best in each move. Depths reached were among 20 with Multi-PV = 7, so not great. Anyway, I think it is worth a try in a faster hardware:
[pgn]
[Event "?"]
[Site "?"]
[Date "1934.??.??"]
[Round "?"]
[White "Kesten"]
[Black "Tartakower"]
[Result "?"]
1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Nc3 Nxe5 5. Nd5 Nxf3+ 6. gxf3 Qd8 7. Bf4 d6 8. Rg1 Be6 9. Nc3 c6 10. Qd4 Qb6 11. Qxb6 axb6 12. O-O-O O-O-O {Continues}
[/pgn]
However, I did not find the game in any free online database. I wonder if faster hardware with SF and/or Leela will bring decreasing evals like the ones I observed (something like from +1.3 for white after 2.- ..., Nc6 and +0.7 for white after 9.- ..., c6). Maybe an unlucky run after all, getting +0.99 at depth 24/43 after 9.- ..., c6 (proposing 10.- e4).
Regards from Spain.
Ajedrecista.
I have looked into the Encyclopedia of Chess Openings, Volume A (1979). Despite being a fairly old edition, I found the twelve first moves of a game that I think it is interesting. I analysed it with SF 11 (backward-forward analysis in my really slow hardware for today standards, getting less than 350 kN/s) and evals are slowly decreasing despite being top-3 moves most of the time. I am not saying that both white and black played the best of the best in each move. Depths reached were among 20 with Multi-PV = 7, so not great. Anyway, I think it is worth a try in a faster hardware:
[pgn]
[Event "?"]
[Site "?"]
[Date "1934.??.??"]
[Round "?"]
[White "Kesten"]
[Black "Tartakower"]
[Result "?"]
1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Nc3 Nxe5 5. Nd5 Nxf3+ 6. gxf3 Qd8 7. Bf4 d6 8. Rg1 Be6 9. Nc3 c6 10. Qd4 Qb6 11. Qxb6 axb6 12. O-O-O O-O-O {Continues}
[/pgn]
However, I did not find the game in any free online database. I wonder if faster hardware with SF and/or Leela will bring decreasing evals like the ones I observed (something like from +1.3 for white after 2.- ..., Nc6 and +0.7 for white after 9.- ..., c6). Maybe an unlucky run after all, getting +0.99 at depth 24/43 after 9.- ..., c6 (proposing 10.- e4).
Regards from Spain.
Ajedrecista.
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zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Is the Englund Gambit lost?
Lc0 (Network 384x30-t60-4082) with 100M nodes:
info depth 25 seldepth 74 time 5364533 nodes 100000008 score cp 102 wdl 667 210 123 nps 18650 tbhits 0 pv d4e5 b8c6 g1f3 d7d5 c1f4 h7h6 e2e3 g8e7 h2h4 c8e6 f1e2 g7g6 b1d2 f8g7 d2b3 e6g4 b3d4 e8g8 d1d2 d8d7 e1g1 a8d8 f1e1 e7f5 e2b5 g4f3 d4f3 d7e7 b5c6 b7c6 g2g3 f7f6 e5f6 e7f6 f4c7 d8e8 c7f4 f6b2 d2d3 a7a5 a2a3 b2f6 a1b1 f5d6 f4d6 f6d6 e3e4 d6f6 g1g2 e8e4 e1e4 d5e4 d3e4 f6f5 e4c6 f8c8 c6b7
More info from the log file:
info depth 25 seldepth 74 time 5364533 nodes 100000008 score cp 102 wdl 667 210 123 nps 18650 tbhits 0 pv d4e5 b8c6 g1f3 d7d5 c1f4 h7h6 e2e3 g8e7 h2h4 c8e6 f1e2 g7g6 b1d2 f8g7 d2b3 e6g4 b3d4 e8g8 d1d2 d8d7 e1g1 a8d8 f1e1 e7f5 e2b5 g4f3 d4f3 d7e7 b5c6 b7c6 g2g3 f7f6 e5f6 e7f6 f4c7 d8e8 c7f4 f6b2 d2d3 a7a5 a2a3 b2f6 a1b1 f5d6 f4d6 f6d6 e3e4 d6f6 g1g2 e8e4 e1e4 d5e4 d3e4 f6f5 e4c6 f8c8 c6b7
More info from the log file:
Code: Select all
0614 13:19:30.597462 140263108548160 ../../src/chess/uciloop.cc:135] >> setoption name LogFile value lczero.log
0614 13:19:55.789516 140263108548160 ../../src/chess/uciloop.cc:135] >> setoption name NNCacheSize value 50000000
0614 13:20:43.213614 140263108548160 ../../src/chess/uciloop.cc:135] >> setoption name UCI_ShowWDL value true
0614 13:21:06.918605 140263108548160 ../../src/chess/uciloop.cc:135] >> setoption name SmartPruningFactor value 0
0614 13:21:29.655038 140263108548160 ../../src/chess/uciloop.cc:135] >> setoption name RamLimitMb value 102400
0614 13:21:46.503346 140263108548160 ../../src/chess/uciloop.cc:135] >> position fen rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq e6 0 2
0614 13:22:00.823613 140263108548160 ../../src/chess/uciloop.cc:135] >> go nodes 100000000
0614 13:22:00.824371 140263108548160 ../../src/neural/loader.cc:230] Found pb network file: ./384x30-t60-4082.pb
0614 13:22:01.203468 140263108548160 ../../src/neural/factory.cc:91] Creating backend [cudnn-auto]...
0614 13:22:01.239720 140263108548160 ../../src/neural/cuda/network_cudnn.cc:1044] Switching to [cudnn-fp16]...
0614 13:22:01.407817 140263108548160 ../../src/neural/cuda/network_cudnn.cc:918] CUDA Runtime version: 10.2.0
0614 13:22:01.407915 140263108548160 ../../src/neural/cuda/network_cudnn.cc:931] Cudnn version: 7.6.5
0614 13:22:01.407929 140263108548160 ../../src/neural/cuda/network_cudnn.cc:941] Latest version of CUDA supported by the driver: 10.2.0
0614 13:22:01.408130 140263108548160 ../../src/neural/cuda/network_cudnn.cc:949] GPU: GeForce RTX 2080 Ti
0614 13:22:01.408147 140263108548160 ../../src/neural/cuda/network_cudnn.cc:950] GPU memory: 10.7534 Gb
0614 13:22:01.408178 140263108548160 ../../src/neural/cuda/network_cudnn.cc:952] GPU clock frequency: 1635 MHz
0614 13:22:01.408191 140263108548160 ../../src/neural/cuda/network_cudnn.cc:953] GPU compute capability: 7.5
0614 13:22:03.447073 140263108548160 ../../src/mcts/stoppers/stoppers.cc:110] RAM limit 102400MB. Cache takes 16000MB. Remaining memory is enough for 432000000 nodes.
0614 13:22:03.447393 140263108548160 ../../src/engine.cc:277] Timer started at 0614 13:22:00.823705
0614 13:22:03.447652 140263108548160 ../../src/mcts/search.cc:729] Search started. 2623ms already passed.
0614 13:22:03.447656 140260214982400 ../../src/mcts/search.cc:766] Start a watchdog thread.
0614 13:22:03.447779 140260206589696 ../../src/mcts/search.h:216] Started search thread.
0614 13:22:03.447782 140260198196992 ../../src/mcts/search.h:216] Started search thread.
...
0614 14:51:25.358319 140260206589696 ../../src/mcts/search.cc:415] === Move stats:
0614 14:51:25.358330 140260206589696 ../../src/mcts/search.cc:416] c1h6 (69 ) N: 2275 (+ 0) (P: 1.27%) (WL: -0.92763) (D: 0.021) (M: 70.1) (Q: -0.92763) (U: 1.47263) (S: 0.54500) (V: -0.9694)
0614 14:51:25.358336 140260206589696 ../../src/mcts/search.cc:416] c1f4 (65 ) N: 2392 (+ 0) (P: 1.33%) (WL: -0.91972) (D: 0.020) (M: 71.5) (Q: -0.91972) (U: 1.46449) (S: 0.54476) (V: -0.9546)
0614 14:51:25.358341 140260206589696 ../../src/mcts/search.cc:416] c1g5 (67 ) N: 2651 (+ 0) (P: 1.47%) (WL: -0.91708) (D: 0.020) (M: 69.7) (Q: -0.91708) (U: 1.46210) (S: 0.54502) (V: -0.9807)
0614 14:51:25.358346 140260206589696 ../../src/mcts/search.cc:416] e1d2 (105 ) N: 2723 (+ 0) (P: 1.37%) (WL: -0.77946) (D: 0.092) (M: 92.4) (Q: -0.77946) (U: 1.32455) (S: 0.54508) (V: -0.8239)
0614 14:51:25.358352 140260206589696 ../../src/mcts/search.cc:416] f2f4 (351 ) N: 3577 (+ 0) (P: 1.36%) (WL: -0.45458) (D: 0.232) (M: 113.9) (Q: -0.45458) (U: 0.99969) (S: 0.54511) (V: -0.3728)
0614 14:51:25.358357 140260206589696 ../../src/mcts/search.cc:416] f2f3 (346 ) N: 4173 (+ 0) (P: 1.59%) (WL: -0.45726) (D: 0.252) (M: 125.9) (Q: -0.45726) (U: 1.00242) (S: 0.54516) (V: -0.6591)
0614 14:51:25.358362 140260206589696 ../../src/mcts/search.cc:416] c1d2 (57 ) N: 4629 (+ 0) (P: 1.44%) (WL: -0.27488) (D: 0.301) (M: 127.7) (Q: -0.27488) (U: 0.82010) (S: 0.54522) (V: -0.2576)
0614 14:51:25.358367 140260206589696 ../../src/mcts/search.cc:416] b2b4 (234 ) N: 4672 (+ 0) (P: 1.39%) (WL: -0.23989) (D: 0.319) (M: 129.4) (Q: -0.23989) (U: 0.78502) (S: 0.54512) (V: -0.4071)
0614 14:51:25.358371 140260206589696 ../../src/mcts/search.cc:416] g2g4 (378 ) N: 4691 (+ 0) (P: 1.48%) (WL: -0.28369) (D: 0.252) (M: 117.2) (Q: -0.28369) (U: 0.82876) (S: 0.54507) (V: -0.3225)
0614 14:51:25.358376 140260206589696 ../../src/mcts/search.cc:416] h2h4 (403 ) N: 4849 (+ 0) (P: 1.43%) (WL: -0.23042) (D: 0.294) (M: 124.5) (Q: -0.23042) (U: 0.77564) (S: 0.54522) (V: -0.2399)
0614 14:51:25.358392 140260206589696 ../../src/mcts/search.cc:416] a2a4 (207 ) N: 5014 (+ 0) (P: 1.41%) (WL: -0.19535) (D: 0.320) (M: 130.4) (Q: -0.19535) (U: 0.74050) (S: 0.54516) (V: -0.2449)
0614 14:51:25.358397 140260206589696 ../../src/mcts/search.cc:416] b1d2 (33 ) N: 5025 (+ 0) (P: 1.50%) (WL: -0.24018) (D: 0.311) (M: 127.9) (Q: -0.24018) (U: 0.78529) (S: 0.54510) (V: -0.3046)
0614 14:51:25.358402 140260206589696 ../../src/mcts/search.cc:416] b1a3 (34 ) N: 5033 (+ 0) (P: 1.48%) (WL: -0.22794) (D: 0.297) (M: 127.6) (Q: -0.22794) (U: 0.77306) (S: 0.54512) (V: -0.3357)
0614 14:51:25.358418 140260206589696 ../../src/mcts/search.cc:416] d1d2 (81 ) N: 5104 (+ 0) (P: 1.44%) (WL: -0.20041) (D: 0.311) (M: 130.4) (Q: -0.20041) (U: 0.74556) (S: 0.54515) (V: -0.1553)
0614 14:51:25.358422 140260206589696 ../../src/mcts/search.cc:416] b2b3 (230 ) N: 5169 (+ 0) (P: 1.46%) (WL: -0.19788) (D: 0.288) (M: 124.3) (Q: -0.19788) (U: 0.74300) (S: 0.54512) (V: -0.2125)
0614 14:51:25.358427 140260206589696 ../../src/mcts/search.cc:416] d1d3 (86 ) N: 5351 (+ 0) (P: 1.49%) (WL: -0.18811) (D: 0.309) (M: 128.9) (Q: -0.18811) (U: 0.73332) (S: 0.54521) (V: -0.0906)
0614 14:51:25.358432 140260206589696 ../../src/mcts/search.cc:416] g1h3 (161 ) N: 5612 (+ 0) (P: 1.51%) (WL: -0.16189) (D: 0.284) (M: 124.0) (Q: -0.16189) (U: 0.70692) (S: 0.54503) (V: -0.2078)
0614 14:51:25.358436 140260206589696 ../../src/mcts/search.cc:416] h2h3 (400 ) N: 5679 (+ 0) (P: 1.44%) (WL: -0.12120) (D: 0.329) (M: 130.7) (Q: -0.12120) (U: 0.66637) (S: 0.54517) (V: -0.1211)
0614 14:51:25.358441 140260206589696 ../../src/mcts/search.cc:416] c1e3 (63 ) N: 6118 (+ 0) (P: 1.58%) (WL: -0.13369) (D: 0.323) (M: 131.0) (Q: -0.13369) (U: 0.67886) (S: 0.54517) (V: -0.0408)
0614 14:51:25.358446 140260206589696 ../../src/mcts/search.cc:416] g1f3 (159 ) N: 6292 (+ 0) (P: 1.54%) (WL: -0.09783) (D: 0.311) (M: 127.0) (Q: -0.09783) (U: 0.64300) (S: 0.54517) (V: -0.0593)
0614 14:51:25.358450 140260206589696 ../../src/mcts/search.cc:416] a2a3 (204 ) N: 6471 (+ 0) (P: 1.44%) (WL: -0.04037) (D: 0.331) (M: 132.8) (Q: -0.04037) (U: 0.58560) (S: 0.54523) (V: -0.0610)
0614 14:51:25.358455 140260206589696 ../../src/mcts/search.cc:416] g2g3 (374 ) N: 6777 (+ 0) (P: 1.53%) (WL: -0.04778) (D: 0.347) (M: 136.0) (Q: -0.04778) (U: 0.59298) (S: 0.54520) (V: -0.0613)
0614 14:51:25.358460 140260206589696 ../../src/mcts/search.cc:416] c2c4 (264 ) N: 6794 (+ 0) (P: 1.39%) (WL: 0.00723) (D: 0.353) (M: 136.7) (Q: 0.00723) (U: 0.53794) (S: 0.54517) (V: 0.0281)
0614 14:51:25.358464 140260206589696 ../../src/mcts/search.cc:416] d4d5 (761 ) N: 7155 (+ 0) (P: 1.56%) (WL: -0.02825) (D: 0.313) (M: 127.1) (Q: -0.02825) (U: 0.57346) (S: 0.54521) (V: -0.0015)
0614 14:51:25.358469 140260206589696 ../../src/mcts/search.cc:416] c2c3 (259 ) N: 7712 (+ 0) (P: 1.55%) (WL: 0.01640) (D: 0.333) (M: 131.5) (Q: 0.01640) (U: 0.52879) (S: 0.54519) (V: 0.0183)
0614 14:51:25.358474 140260206589696 ../../src/mcts/search.cc:416] e2e4 (322 ) N: 8024 (+ 0) (P: 1.71%) (WL: -0.01707) (D: 0.338) (M: 127.3) (Q: -0.01707) (U: 0.56222) (S: 0.54515) (V: -0.0176)
0614 14:51:25.358478 140260206589696 ../../src/mcts/search.cc:416] b1c3 (36 ) N: 9028 (+ 0) (P: 1.63%) (WL: 0.07034) (D: 0.303) (M: 128.1) (Q: 0.07034) (U: 0.47476) (S: 0.54510) (V: 0.1423)
0614 14:51:25.358483 140260206589696 ../../src/mcts/search.cc:416] e2e3 (317 ) N: 9727 (+ 0) (P: 1.71%) (WL: 0.08306) (D: 0.363) (M: 137.7) (Q: 0.08306) (U: 0.46215) (S: 0.54520) (V: 0.0828)
0614 14:51:25.358488 140260206589696 ../../src/mcts/search.cc:416] d4e5 (762 ) N: 99847290 (+ 2) (P: 58.54%) (WL: 0.54369) (D: 0.210) (M: 112.9) (Q: 0.54369) (U: 0.00155) (S: 0.54524) (V: 0.5537)
0614 14:51:25.358492 140260206589696 ../../src/mcts/search.cc:416] node ( 29) N: 100000008 (+ 2) (P: 100.0%) (WL: 0.54260) (D: 0.211) (M: 113.9) (Q: 0.54260) (V: 0.5606)
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Ovyron
- Posts: 4556
- Joined: Tue Jul 03, 2007 4:30 am
Re: Is the Englund Gambit lost?
After analyzing the Grob for several months I still don't have a mainline for it, though I'm sure 1.g4 d5!! (white might survive other moves) is best, I have no idea about what is white's best second move.
It's similar on the Englund, I have no idea if after 2.dxe5!! (white must accept the gambit) 2...d6 is best or 2...Nc6 is best, or they transpose by force, but you can analyze one until it looks worse than the other, and at this rate they're going to be tied with a 3rd best move.
Though, I'm nowhere close to Dann's relative depth 66, my evals are on the -1.60s, and all signs point that black can't stop white from achieving a 2.00 advantage, though it's too early to make that claim yet.