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Up Topic The Rybka Lounge / Test Positions / Thematics
- - By MrKris (****) Date 2020-12-21 07:03
Just one so far:

All games played the same opening, colors reversed, from the recent CCC Odds Ladder.
1.Nf3 d5 2.Ng1 e5 {Book, diagram} G/3'+2'' 8GBh Sy.6
rnbqkbnr/ppp2ppp/8/3pp3/8/8/PPPPPPPP/RNBQKBNR w KQkq e6 0 3

G/3'+2", R7 2700X 16th | RTX 2060, 8 GBh, Sy. 6
                          Score     St lJ Cf Bl l6 LS

1: Stockfish_20121407   7.5 / 10   XX == B= B= WB =B  (+5 -0 =5)
2: lc0v0.26.3_J98.3-8   6.0 / 10   == XX == B0 B= =B  (+3 -1 =6)
3: Cfish-201206Pure     5.0 / 10   0= == XX B0 0B B=  (+3 -3 =4)
4: Bluefish-12r1Capa    4.5 / 10   0= 0B 0B XX 0= =B  (+3 -4 =3)
5: Lc0v0.26.3_66511     4.5 / 10   00 0= B0 B= XX B=  (+3 -4 =3)
6: lc0v0.26.3_LS15      2.5 / 10   =0 =0 0= =0 0= XX  (+0 -5 =5)

30 games, white +1 -16 =13, 7.5/30, 25%  (draws 43%)

All 30 games continued 3.c3:

  22 games * : 3.c3 Bd6 4.d4 e4 5.c4 dxc4 6.e3 c6: white +1 =7 -14 (4.5/22: 20%)

  5 games: 3.c3 Nd7 4.d4 Ngf6 5.dxe5 Nxe5 6.Nf3 Bd6 7.Nxe5 Bxe5 8.Nd2 h6 9.Nf3 Bd6 10.Bf4 Bxf4 11.Qa4+ c6 12.Qxf4 O-O: white +0 =5 -0 (2.5/5: 50%)
 
  2 games: 3.c3 Bd6 4.d4 Nc6*: *tranposition
  3.c3 Nc6 4.d4 Bd6*:  LS15 0-1 Bf and J98 1/2-1/2 Sf

  1 game: 3.c3 Nc6 4.d4 e4: 1, 511 0-1 CfP

 
* The most common variation played leaves white the same as but a move behind black in the risky 1.e4 c6 2.d4 d5 3.e5 c5!?.
I do not understand why they all liked it so much. ShashChess 15.1 has at 4 1/2 mins. PV=4:
-white is a move behind black in the named openings:
-0.89 3.e3 Nf6 4.d4 Nbd7 5.Nf3 French-style;
-0.95 3.c3 Nc6 4.d4 e4 5.e3!? Caro-Kann-style;
-1.02 3.g3 Nc6 4.d3 Be6 5.c3 Modern-style;
-1.05 3.d3 Nf6 4.Nf3 Nc6 5.e3 Hedgehog-style.

Even with this strange opening Stockfish was undefeated!
The newest Lc0 "J" net lost only once, to Bluefish!
LS15 could only draw with black and as white always confirmed odds theory by losing.

Interestingly in only 30 games they came up with a reasonable strength order:
1st lastest Stockfish, 2nd latest Lc0 net, 3rd Cfish slightly old and hampered by Pure, 4th Bluefish a month old and maybe hampered by Capablanca, 5th the last official Lc0 24x320 net, 6th Lc0 with the old Leelenstein 15 20x256 net (larger new nets have been doing better: fastgms.de).

The only win by white was from an ending blunder in a drawn game after 110.h5 {Stockfish in-game 0.00}
[White "Stockfish"]
[Black "Lc0_66511"]
[FEN "8/6b1/prpr2p1/5p1P/1PRPpP2/6Pk/2R1KB2/8 b - - 0 110"]

110... gxh5 {?} (110...Kg4 {! ShashChess 15.1: 0.00 =} 111.Rc1 g5 112.fxg5 Kxh5) 111. Rc1 {+1.00/30 4.3s} Kg4 {+0.11/19 0.94s} 112. d5 {+1.17/28 1.2s} cxd5 {?? 0.00/19 1.2s} (112...Rb8! {SC -0.46 1 min. += or +/}) 113. Rh1 {+4.53/24 1.3s} Bf6 {-0.85/12 2.0s} 114. Rc8 {+5.01/24 1.4s} h4 {-1.51/14 4.0s} 115. Rg8+ {+8.58/31 1.9s} Kh5 {-1.66/12 0.20s} 116. g4+ {+8.88/30 1.5s} Kh6 {-2.29/11 0.74s} 117. gxf5 {+9.57/29 1.8s} Be7 {-5.53/11 4.9s} 118. Bd4 {+M21/70 1.4s} Rd8 {-7.24/10 0.28s} 119. Rg3 {+M19/77 1.5s} Rc6 {-11.63/9 2.8s} 120. f6 {+M13/103 1.6s} Bxf6 {-M12/2 1.6s, White wins by adjudication 1-0}

Here CfishPure had the worse game then its counter-attacking idea 23.h3, 24.f4 and exchange sac. 27.Rf4 made things worse.
[Event "G/3'+2'' 8GBh Sy.6"]
[Site "R7 2700X 16th | RTX 2060"]
[Date "2020.12.17"]
[Round "2"]
[White "Cfish-201206Pure"]
[Black "Stockfish_20121407"]
[Result "0-1"]
[ECO "A06"]
[Opening "Reti Opening"]
[Variation "1...d5"]
[TimeControl "180+2"]
[Termination "adjudication"]
[PlyCount "125"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 {book} d5 {book} 2. Ng1 {book} e5 {book} 3. c3 {-1.06/30 0 10s} Bd6
{+1.16/34 0 24s} 4. d4 {-1.04/27 0 2.1s} e4 {+1.16/30 0 2.3s} 5. c4
{-1.09/29 0 2.9s} dxc4 {+1.33/30 0 2.8s} 6. e3 {-1.12/30 0 4.7s} c6
{+1.24/29 0 2.5s} 7. Nd2 {-1.20/29 0 3.0s} Nf6 {+1.23/30 0 3.8s} 8. Bxc4
{-1.10/29 0 2.8s} Qe7 {+1.32/28 0 2.8s} 9. Ne2 {-1.23/29 0 3.1s} Nbd7
{+1.29/30 0 3.9s} 10. Ng3 {-1.10/31 0 7.6s} Nb6 {+1.36/29 0 2.8s} 11. Be2
{-1.04/31 0 6.5s} O-O {+1.49/27 0 2.9s} 12. b3 {-1.04/31 0 9.5s} g6
{+1.19/35 0 34s} 13. Qc2 {-1.15/30 0 5.1s} Re8 {+1.15/31 0 2.2s} 14. Nc4
{-1.02/28 0 4.3s} Nxc4 {+1.04/34 0 19s} 15. bxc4 {-0.94/28 0 4.2s} h5
{+1.09/28 0 1.7s} 16. Nf1 {-0.97/27 0 3.4s} Nh7 {+1.12/30 0 3.4s} 17. Nd2
{-1.10/32 0 20s} Qg5 {+1.26/34 0 7.9s} 18. g3 {-1.11/30 0 2.7s} Bg4
{+1.33/30 0 10.0s} 19. Bxg4 {-0.92/30 0 5.9s} hxg4 {+1.23/29 0 4.0s} 20.
Bb2 {-0.81/31 0 19s} Qf5 {+1.14/32 0 21s} 21. O-O-O {-0.79/26 0 2.8s} Nf6
{+1.37/28 0 1.7s} 22. Rdf1 {-1.01/31 0 5.3s} Qd7 {+1.41/30 0 6.0s} 23. h3
{-1.10/30 0 13s ShashChess 15.1 PV=4, 4 mins.: 23.Rd1 -1.01; 23.h3 -1.07;
23.Kb1 -1.36; 23.Nb3 -1.36.} gxh3 {+1.33/33 0 3.8s} 24. f4 {-1.10/33 0 20s}
exf3 {+1.66/28 0 2.3s} 25. Rxf3 {-1.03/32 0 4.4s} Nh7 {+1.25/33 0 5.3s} 26.
e4 {-1.16/30 0 4.1s} Ng5 {+1.56/29 0 2.8s} 27. Rf4 {-1.19/31 0 3.1s} b5
{+1.95/28 0 3.4s} 28. c5 {-1.24/29 0 3.5s} Bxf4 {+1.37/34 0 14s} 29. gxf4
{-0.67/24 0 2.8s} Ne6 {+1.77/31 0 14s} 30. Rxh3 {-0.87/29 0 6.2s} Nxf4
{+1.93/27 0 2.0s} 31. Rh4 {-1.03/30 0 7.6s} g5 {+1.31/31 0 11s} 32. Rh1
{-1.25/29 0 3.4s} f6 {+1.63/27 0 1.9s} 33. d5 {-1.05/28 0 2.8s} Qf7
{+1.85/28 0 9.9s} 34. Kb1 {-0.95/29 0 8.9s} Qg6 {+1.92/24 0 0.74s} 35. dxc6
{-0.86/30 0 14s} Rac8 {+2.04/27 0 3.1s} 36. Ka1 {-0.72/26 0 4.3s} a6
{+2.32/28 0 2.9s} 37. Nf3 {-0.95/28 0 2.6s} Rxe4 {+2.83/24 0 0.69s} 38.
Qb3+ {-2.76/29 0 12s} Kg7 {+3.26/25 0 1.2s} 39. Qd1 {-2.09/27 0 1.3s} Re7
{+3.43/23 0 1.6s} 40. Qd6 {-3.12/27 0 4.6s} Kf7 {+3.14/25 0 1.9s} 41. a3
{-3.03/26 0 5.2s} Qf5 {+3.82/24 0 1.3s} 42. Nd4 {-3.48/26 0 7.5s} Qe4
{+3.83/24 0 1.2s} 43. Rh6 {-3.57/22 0 0.31s} Nd5 {+4.07/24 0 1.3s} 44. Nb3
{-3.25/25 0 2.0s} Kg8 {+4.20/24 0 1.4s} 45. Rh2 {-3.90/27 0 4.5s} Qf5
{+4.44/32 0 2.7s} 46. Rd2 {-3.65/25 0 1.2s} Re1+ {+4.55/27 0 1.2s} 47. Nc1
{-3.62/25 0 0.25s} Ne7 {+4.69/32 0 2.1s} 48. c7 {-3.87/27 0 0.76s} Kf7
{+4.73/29 0 1.3s} 49. Qd8 {-3.69/27 0 1.5s} Qxc5 {+4.85/30 0 2.8s} 50. Rd7
{-4.50/27 0 2.5s} Kg6 {+5.08/30 0 1.9s} 51. Kb1 {-5.39/29 0 2.5s} Kh5
{+4.93/33 0 5.1s} 52. Ka2 {-5.47/29 0 4.0s} Qc2 {+5.53/28 0 1.1s} 53. Ka1
{-5.63/24 0 0.51s} Rxc1+ {+5.60/28 0 1.1s} 54. Bxc1 {-5.39/24 0 0.47s}
Qxc1+ {+5.79/27 0 1.2s} 55. Ka2 {-6.16/23 0 0.68s} Qc2+ {+6.22/28 0 2.1s}
56. Ka1 {-6.25/25 0 0.70s} Qc3+ {+6.35/26 0 2.2s} 57. Kb1 {-6.72/30 0 2.4s}
Qb3+ {+6.49/26 0 1.6s} 58. Kc1 {-6.29/27 0 2.3s} Qxa3+ {+6.67/25 0 2.1s}
59. Kb1 {-6.14/28 0 2.8s} Qb3+ {+6.83/26 0 2.8s} 60. Kc1 {-7.54/29 0 3.3s}
Qe3+ {+7.00/25 0 2.0s} 61. Kc2 {-7.55/27 0 4.2s} b4 {+9.96/23 0 1.2s} 62.
Kd1 {-10.87/24 0 4.1s} Qf3+ {+10.70/27 0 1.5s} 63. Ke1 {-10.85/23 0 0.66s,
Black wins by adjudication} 0-1

The shortest draw. Black allowed white to be a move behind black in a quiet Caro-Kann. [Event "G/3'+2'' 8GBh Sy.6"]
[Site "R7 2700X 16th | RTX 2060"]
[Date "2020.12.16"]
[Round "2"]
[White "lc0v0.26.3_J98.3-8"]
[Black "lc0v0.26.3_LS15"]
[Result "1/2-1/2"]
[ECO "A06"]
[Opening "Reti Opening"]
[Variation "1...d5"]
[TimeControl "180+2"]
[Termination "adjudication"]
[PlyCount "80"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 {book} d5 {book} 2. Ng1 {book} e5 {book} 3. c3 {-0.39/9 0 3.2s} Nd7
{+0.60/16 0 5.2s} 4. d4 {-0.34/9 0 4.0s} Ngf6 {+0.56/14 0 2.4s} 5. dxe5
{-0.31/13 0 4.6s} Nxe5 {+0.53/18 0 3.6s} 6. Nf3 {-0.30/13 0 3.1s} Bd6
{+0.48/20 0 2.9s} 7. Nxe5 {-0.30/13 0 3.9s} Bxe5 {+0.47/19 0 3.0s} 8. Nd2
{-0.29/12 0 3.8s} h6 {+0.47/19 0 6.2s} 9. Nf3 {-0.29/14 0 6.6s} Bd6
{+0.46/18 0 1.8s} 10. Bf4 {-0.30/14 0 3.1s} Bxf4 {+0.46/17 0 3.1s} 11. Qa4+
{-0.33/13 0 3.5s} c6 {+0.46/17 0 3.9s} 12. Qxf4 {-0.34/12 0 3.7s} O-O
{+0.48/16 0 3.0s} 13. Qc1 {-0.35/11 0 19s} Bg4 {+0.51/14 0 13s} 14. e3
{-0.36/11 0 1.3s} Bxf3 {+0.52/14 0 2.8s} 15. gxf3 {-0.39/11 0 3.0s} c5
{+0.54/14 0 4.3s} 16. Qd2 {-0.39/11 0 5.5s} Qc7 {+0.54/14 0 8.0s} 17. Bg2
{-0.39/12 0 5.2s} Rad8 {+0.52/16 0 15s} 18. O-O {-0.40/12 0 4.4s} d4
{+0.53/14 0 0.27s} 19. cxd4 {-0.40/12 0 6.4s} cxd4 {+0.53/15 0 0.21s} 20.
exd4 {-0.39/11 0 2.0s} Rd7 {+0.52/14 0 17s} 21. Rfe1 {-0.35/11 0 10s} Rfd8
{+0.50/13 0 7.5s} 22. Rad1 {-0.33/10 0 3.7s} Qb6 {+0.50/13 0 0.30s} 23. Qc2
{-0.33/11 0 13s} Nh5 {+0.50/11 0 8.6s} 24. Re5 {-0.19/13 0 3.7s} Nf4
{+0.25/15 0 9.3s} 25. Qe4 {-0.16/15 0 3.6s} Rxd4 {+0.23/17 0 3.0s} 26. Rxd4
{-0.15/15 0 4.1s} Qxd4 {+0.21/17 0 1.9s} 27. Qxd4 {-0.12/13 0 3.5s} Rxd4
{+0.18/16 0 2.9s} 28. Re8+ {-0.10/12 0 2.8s} Kh7 {+0.16/1 0 0.001s} 29. Re7
{-0.07/10 0 3.8s} Rb4 {+0.13/13 0 11s} 30. b3 {-0.05/10 0 9.0s} f5
{+0.14/14 0 12s} 31. Bf1 {-0.05/11 0 9.4s} h5 {+0.15/14 0 1.3s} 32. Bc4
{-0.05/12 0 4.9s} h4 {+0.13/15 0 6.0s} 33. Kf1 {-0.05/12 0 7.2s} Rb6
{+0.10/16 0 7.9s} 34. a4 {-0.05/12 0 3.9s} h3 {+0.10/16 0 2.7s} 35. Rd7
{-0.05/12 0 4.4s} a5 {+0.08/16 0 4.3s} 36. Rd4 {-0.04/12 0 4.7s} g5
{+0.06/16 0 2.7s} 37. Ke1 {-0.04/12 0 13s} Kg6 {+0.05/13 0 16s} 38. Kd2
{-0.03/12 0 7.1s} Kf6 {+0.04/13 0 5.3s} 39. Rd7 {-0.02/13 0 0.58s} Ng6
{+0.04/13 0 2.6s} 40. Rh7 {-0.02/12 0 4.6s} Ke5 {+0.04/13 0 3.5s, Draw by
adjudication} 1/2-1/2

After Stockfish played 24.Bc4 {-0.50/32}, sacrificing the exchange for a dark-squares blockade. Lc0 could not find a win, game below.
1r2r1k1/1pb2ppp/p1p3b1/P1Rn2q1/1BBPp3/4P1N1/1P3PPP/3Q1RK1 b - - 13 24

[Event "G/3'+2'' 8GBh Sy.6"]
[Site "R7 2700X 16th | RTX 2060"]
[Date "2020.12.17"]
[Round "5"]
[White "Stockfish_20121407"]
[Black "lc0v0.26.3_J98.3-8"]
[Result "1/2-1/2"]
[ECO "A06"]
[Opening "Reti Opening"]
[Variation "1...d5"]
[TimeControl "180+2"]
[Termination "adjudication"]
[PlyCount "167"]
[WhiteType "human"]
[BlackType "human"]

1. Nf3 {book} d5 {book} 2. Ng1 {book} e5 {book} 3. c3 {-1.12/31 0 5.5s} Bd6
{+0.42/9 0 3.5s} 4. d4 {-0.89/31 0 3.5s} e4 {+0.44/12 0 2.9s} 5. c4
{-0.98/28 0 3.1s} dxc4 {+0.46/13 0 3.2s} 6. e3 {-1.00/28 0 3.1s} c6
{+0.48/13 0 3.7s} 7. Nd2 {-0.98/32 0 11s} Nf6 {+0.52/10 0 6.3s} 8. Bxc4
{-1.15/30 0 4.5s} Qe7 {+0.53/10 0 6.0s} 9. Ne2 {-1.27/32 0 8.2s} Bf5
{+0.54/10 0 7.8s} 10. Ng3 {-1.13/30 0 9.1s} Bg6 {+0.49/11 0 4.4s} 11. Be2
{-1.05/29 0 2.4s} Nbd7 {+0.46/11 0 8.7s} 12. Nc4 {-1.32/31 0 13s} Bc7
{+0.46/10 0 1.3s} 13. Bd2 {-1.32/31 0 9.3s} O-O {+0.46/10 0 8.0s} 14. a4
{-1.15/26 0 3.3s} Rfd8 {+0.49/8 0 8.7s} 15. Rc1 {-1.15/31 0 23s} Nb6
{+0.50/9 0 4.2s} 16. a5 {-1.14/29 0 3.2s} Nxc4 {+0.56/9 0 6.0s} 17. Rxc4
{-1.08/30 0 2.6s} a6 {+0.56/9 0 2.7s} 18. Bb4 {-1.15/29 0 3.8s} Qd7
{+0.56/9 0 5.6s} 19. Rc1 {-1.10/27 0 8.9s} Re8 {+0.58/8 0 6.8s} 20. O-O
{-1.12/25 0 2.1s} Rab8 {+0.56/8 0 9.9s} 21. Ra1 {-0.97/27 0 3.9s} Qd5
{+0.51/9 0 5.7s} 22. Rc1 {-1.17/30 0 8.1s} Qg5 {+0.57/10 0 5.6s} 23. Rc5
{-0.78/27 0 2.0s} Nd5 {+0.58/12 0 1.6s} 24. Bc4 {-0.50/32 0 7.2s << Diagram >>} b6
{+0.59/14 0 4.4s} 25. axb6 {-0.55/30 0 2.0s} Bxb6 {+0.60/14 0 2.9s} 26. Qa4
{-0.67/32 0 3.1s} Bxc5 {+0.58/13 0 3.7s} 27. Bxc5 {-0.66/33 0 4.4s} Qf6
{+0.59/14 0 2.6s} 28. b4 {-0.42/30 0 4.3s} h5 {+0.52/15 0 7.8s} 29. Bxd5
{-0.53/36 0 12s} cxd5 {+0.51/14 0 7.6s} 30. Ra1 {-0.30/37 0 7.2s} Qd8
{+0.59/14 0 9.6s} 31. h3 {-0.30/38 0 1.8s} f6 {+0.62/14 0 4.6s} 32. h4
{-0.98/44 0 37s} Re6 {+0.61/14 0 3.0s} 33. Ne2 {-1.13/38 0 12s} Be8
{+0.62/15 0 4.7s} 34. Qa2 {-1.04/51 0 3.5s} Rc6 {+0.63/15 0 15s} 35. Nf4
{-1.15/38 0 2.1s} Bf7 {+0.61/13 0 0.31s} 36. Qe2 {-1.30/37 0 4.9s} Qc8
{+0.62/12 0 0.43s} 37. Nxh5 {-1.30/32 0 1.2s} Bxh5 {+0.63/11 0 1.7s} 38.
Qxh5 {-1.23/34 0 1.0s} Qe6 {+0.66/10 0 17s} 39. Ra5 {-1.21/38 0 1.5s} f5
{+0.68/9 0 2.9s} 40. Qd1 {-1.20/36 0 8.6s} f4 {+1.07/12 0 6.5s} 41. exf4
{-1.45/27 0 0.61s} e3 {+0.95/15 0 2.7s} 42. Qe2 {-1.35/30 0 1.0s} exf2+
{+0.85/15 0 3.0s} 43. Kxf2 {-1.44/32 0 1.1s} Qf7 {+0.94/16 0 2.5s} 44. Qf3
{-1.45/34 0 1.1s} Rf6 {+1.06/14 0 6.1s} 45. g3 {-1.44/32 0 0.96s} Re8
{+1.10/14 0 1.8s} 46. Ra2 {-1.43/37 0 4.0s} Re4 {+1.20/16 0 5.3s} 47. Kg2
{-1.36/35 0 0.74s} Qe6 {+1.10/17 0 5.1s} 48. b5 {-1.10/27 0 1.1s} axb5
{+1.13/17 0 1.9s} 49. Qh5 {-1.12/31 0 1.1s} Rh6 {+1.19/20 0 4.1s} 50. f5
{-2.99/29 0 4.3s} Qc6 {+1.28/16 0 3.3s} 51. Qg5 {-1.17/31 0 1.2s} Rf6
{+1.31/13 0 0.74s} 52. Qh5 {-0.52/31 0 1.4s} Re1 {+1.35/19 0 7.1s} 53. Bb4
{-0.55/33 0 2.4s} Re4 {+0.73/14 0 12s} 54. Bc5 {-0.62/29 0 0.93s} Re1
{+0.76/16 0 7.0s} 55. Bb4 {-0.62/31 0 2.8s} Re8 {+0.70/14 0 0.30s} 56. Bc5
{-0.47/31 0 2.3s} Rf7 {+0.70/12 0 0.80s} 57. Qg6 {-0.46/31 0 1.5s} Qc8
{+0.61/13 0 7.3s} 58. Ra6 {-0.44/40 0 1.4s} Re2+ {+0.59/13 0 0.69s} 59. Kh3
{-0.43/30 0 1.6s} Rxf5 {+0.56/17 0 5.5s} 60. Rc6 {-0.32/30 0 1.6s} Qd7
{+0.54/21 0 0.70s} 61. Rd6 {-0.31/28 0 1.6s} Rf6+ {+0.52/18 0 6.7s} 62.
Rxd7 {-0.54/31 0 2.4s} Rxg6 {+0.51/12 0 0.25s} 63. Rxd5 {-0.52/33 0 4.6s}
Re3 {+0.50/10 0 0.28s} 64. Bd6 {-0.08/27 0 0.87s} Re8 {+0.45/16 0 3.6s} 65.
h5 {0.0037 1.6s} Rh6 {+0.36/17 0 5.9s} 66. Be5 {0.0041 1.3s} Rb6 {+0.34/16
0 0.25s} 67. Rd7 {0.0038 1.3s} b4 {+0.34/15 0 0.30s} 68. Rxg7+ {0.0041
3.4s} Kf8 {+0.32/14 0 0.50s} 69. Rc7 {0.0046 2.7s} b3 {+0.30/12 0 1.3s} 70.
Rc1 {0.0047 1.2s} b2 {+0.27/11 0 6.1s} 71. Rb1 {0.0044 1.2s} Kg8 {+0.26/10
0 1.3s} 72. Kg4 {0.0043 1.1s} Rb5 {+0.23/10 0 5.4s} 73. Kf5 {0.0041 1.2s}
Rf8+ {+0.21/10 0 1.4s} 74. Kg6 {0.0047 1.6s} Rb6+ {+0.18/10 0 1.2s} 75. Kg5
{0.0055 1.4s} Rf2 {+0.16/9 0 2.5s} 76. d5 {0.0055 1.3s} Re2 {+0.14/8 0
2.0s} 77. Kf5 {0.0061 1.5s} Kf7 {+0.12/8 0 3.5s} 78. g4 {0.0058 1.5s} Rf2+
{+0.10/8 0 1.1s} 79. Kg5 {0.0067 2.9s} Re2 {+0.07/7 0 3.1s} 80. Rxb2
{0.00245 1.8s} Rbxb2 {0.004 2.6s} 81. Bxb2 {0.00108 1.5s} Rxb2 {0.002
0.65s} 82. Kf5 {0.0058 1.4s} Rf2+ {+0.03/6 0 3.2s} 83. Ke5 {0.0067 1.6s}
Rh2 {+0.03/5 0 2.1s} 84. Kf4 {0.0067 1.8s, Draw by adjudication} 1/2-1/2
Attachment: move-odds.pgn - Games (96k)
Parent - - By Lazy Frank (****) Date 2020-12-26 12:48
After 3. c3 latest SF dev stick with 3... Bd6 4. d4 e4 5. c4 dxc4

rnbqk1nr/ppp2ppp/3b4/8/2pPp3/8/PP2PPPP/RNBQKBNR w KQkq - 0 6
Parent - By MrKris (****) Date 2020-12-30 02:38
Thanks, it was interesting to me because of the following.

The Caro-Kann, Advance Variation:
1. e4 c6 2. d4 d5 3. e5 c5 {the only, and slightly risky, alternative to the main 3...Bf5} 4. dxc5
rnbqkbnr/pp2pppp/8/2PpP3/8/8/PPP2PPP/RNBQKBNR b KQkq - 0 4

Black in your diagram for

> After 3. c3 latest SF dev stick with 3... Bd6 4. d4 e4 5. c4 dxc4


is a move ahead ("Bishop to Queen's three", if you know what I mean :) ) of white here, the regular Caro-Kann.
In both cases the opponent to the 'c-pawn double-stepper' is to move.

In my post I note that all 3 Stockfish-family and all 3 Lc0 nets played 3.c3 {after 1.Nf3 d5 2.Ng1 e5 Book.}.
After the most commonly played, my post (and at CCC) 3...Bd6 4.d4 e4 white cannot play, which would be similar the main Caro-Kann, 5.Bf4?? so plays similar to the above alternative 5.c4, even though it is a double-step already a move behind.
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ChessTempo.com (FIDE/humans), both 2500+
1. e4 c6 2. d4 d5 3. e5 Bf5, 2970 games, wh+35.2%, draws 45%, bk+19.9%
1. e4 c6 2. d4 d5 3. e5 c5, 434 games, wh.+ 40.3%, draws 39.4%, bk+ 20.3%

Stockfish_20122510 (2700X 14ths) @ 16 mins. disagrees: {- bad for black here}
PV=2: 3...c5 -0.21/46,   3...Bf5 -0.38/46.

Lc0 0.26.3 J98.3-8 @ 16 mins. agrees with the humans, very slightly:
PV=2: 3...Bf5 -0.19/15,   3...c5 -0.20/15
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Back to the odds opening {1.Nf3 d5 2.Ng1 e5}, I was thinking of the French-like 3.e3 but maybe white's kingside could be more of a problem than black's in the regular French.
At 30 mins., PV=3, Stockfish has:
3.c3 -0.90/45, with the variation you mention
3.e3 -1.16/45
3.d3 -1.17/45
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