Test Position: Nikolic Fischer revisited 19...Bg4!!

[zullil]

Ok, lets start with the best move out of the 3 which is 20.Qb1, here is what I have so far:

And your line seems to agree with what I recently posted:

20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6

And we have

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

Cfish-dev currently shows:

-2.58 27. Be3 Kg7 28. f5 Nxf5 29. Qa2 Red8 30. Bf4 f6 31. h4 Nxd4 32. Rfb1 Rd7 33. Rd2 Nb5 34. Qb2 Rc8 35. Nxb5 axb5 36. Qxb5 Qxb5 37. Rxb5 d4 38. Be3 d3 39. Ra2 Kf7 40. Kg1 Rcc7 41. Rbb2 Be2 42. Ra4 Rb7 43. Rxb7 Rxb7 44. Kh2 Bf3 45. g4 Bxg4 46. Kg3 Rd7 47. Bd2 Ke6 48. Ra6+ Kd5 49. Rxf6 Kxc5 50. Rxg6 Rf7 51. Kg2 Kc4 52. Rc6+ Kd5 53. Ra6 Rb7 54. Be3 Kc4 55. Rc6+ Kb3 56. Rc5 Bf3+ 57. Kg3 Rg7+ 58. Kf4 Rg4+ 59. Ke5 (depth 53, 2:05:45)

Which seems like it should be a (not so fast) win for Black.

-2.70 27. Qc1 Rab8 28. Nd1 Be2 29. Re1 Bxd1 30. Rxd1 Nf5 31. Be3 Rb5 32. Qc3 Reb8 33. Rxb5 axb5 34. Qb4 a6 35. Ra1 Ra8 36. Qa5 Kg7 37. Kg2 Ne7 38. Rb1 Qd7 39. Bd2 f6 40. Qc3 Kf7 41. Qa1 Qc6 42. Be1 Ra7 43. Ba5 Qe6 44. Rb3 Nc6 45. Bd2 Qf5 46. Kh2 Qc8 47. Rb1 Kg7 48. Kg2 Qf5 49. Rb3 Qd7 50. Rb1 Qc8 51. Be1 Qb7 52. Qb2 Ra8 53. Bc3 Qc8 54. Qa2 Ne7 55. Ba5 Qb7 56. Qd2 Qd7 57. Kh2 Qe6 58. Bc3 Nf5 59. Rb3 Re8 60. Rb1 e3 61. fxe3 Qxe3 (depth 55, 3:24:08)

[acase]

Ok, lets start with the best move out of the 3 which is 20.Qb1, here is what I have so far:

And your line seems to agree with what I recently posted:

20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6

And we have

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

Cfish-dev currently shows:

-2.58 27. Be3 Kg7 28. f5 Nxf5 29. Qa2 Red8 30. Bf4 f6 31. h4 Nxd4 32. Rfb1 Rd7 33. Rd2 Nb5 34. Qb2 Rc8 35. Nxb5 axb5 36. Qxb5 Qxb5 37. Rxb5 d4 38. Be3 d3 39. Ra2 Kf7 40. Kg1 Rcc7 41. Rbb2 Be2 42. Ra4 Rb7 43. Rxb7 Rxb7 44. Kh2 Bf3 45. g4 Bxg4 46. Kg3 Rd7 47. Bd2 Ke6 48. Ra6+ Kd5 49. Rxf6 Kxc5 50. Rxg6 Rf7 51. Kg2 Kc4 52. Rc6+ Kd5 53. Ra6 Rb7 54. Be3 Kc4 55. Rc6+ Kb3 56. Rc5 Bf3+ 57. Kg3 Rg7+ 58. Kf4 Rg4+ 59. Ke5 (depth 53, 2:05:45)

Which seems like it should be a (not so fast) win for Black.

Hi Louis,

After 27.Be3 I like 27...Ng4+ better than the Cfish-dev suggestion of 27...Kg7 for Black (it looks like an improvement over 27...Kg7). Of course I am open to the possibilties of any improvements on any of the lines I have posted so far. I think that 27.Qc1 is better than 27.Be3 or the 27.Qa2 that was in my analysis.


Give this position a try:

[d]r3r1k1/p4p2/p1q3p1/2Pp3p/3PpPn1/2N1BbPP/1R3P1K/1Q3R2 w - - 2 28

[zullil]

Hi Louis,

After 27.Be3 I like 27...Ng4+ better than the Cfish-dev suggestion of 27...Kg7 for Black (it looks like an improvement over 27...Kg7). Of course I am open to the possibilties of any improvements on any of the lines I have posted so far. I think that 27.Qc1 is better than 27.Be3 or the 27.Qa2 that was in my analysis.

Give this position a try:

[d]r3r1k1/p4p2/p1q3p1/2Pp3p/3PpPn1/2N1BbPP/1R3P1K/1Q3R2 w - - 2 28

Hi Andrew,

It seems that Vincent's resurrection of old positions is summoning the faithful, so to speak.

I did a quick run with Cfish-dev, with Multi-PV = 2. So far, Kg7 remains on top, but I've made no attempt to analyze these lines. That's because I agree that 27. Qc1 seems like the move to analyze. See below for that.

-2.51 27... Kg7 28. f5 Nxf5 29. Qa2 Red8 30. Bf4 f6 31. h4 Nxd4 32. Rfb1 Rd7 33. Rd2 Nb5 34. Qb2 Rc8 35. Nxb5 axb5 36. Qxb5 Qxb5 37. Rxb5 d4 38. Ra5 Kf7 39. Be3 d3 40. Rda2 Rcc7 41. Ra6 Bg4 42. R6a5 Be6 43. Rb2 Bd5 44. Ra6 Bc6 45. Bf4 Rc8 46. Rb1 Ke6 47. Rba1 Kf5 48. Be3 Rcc7 49. Rb1 Ba8 50. Rba1 Bd5 51. Kg2 Bc6 52. Rb1 Ke6 53. Kg1 Kd5 54. Rb4 Ke5 55. Bf4+ Kf5 56. Rb1 Rc8 57. Be3 g5 58. hxg5 fxg5 59. Kg2 Kg4 60. Rba1 Rcc7 61. Rb1 (depth 52, 0:54:27)

-2.33 27... Ng4+ 28. hxg4 hxg4 29. Rh1 Kg7 30. Kg1 Rh8 31. Rh4 Rxh4 32. gxh4 Rh8 33. Ne2 Qf6 34. Rb8 Rxb8 35. Qxb8 Qxh4 36. Ng3 Qh3 37. Nh5+ Qxh5 38. Qe5+ Qxe5 39. dxe5 Kf8 40. c6 Ke8 41. Bxa7 a5 42. Kf1 a4 43. Ke1 a3 44. Kd2 a2 45. Bd4 Kd8 46. Kc1 e3 47. Kb2 e2 48. Bb6+ Kc8 49. Ba5 d4 50. Kxa2 Bxc6 51. Kb3 Bb5 52. Kc2 Kd7 53. Kd2 Ke6 54. Ke1 Kd5 55. Bd2 d3 56. Bc1 Kd4 57. Bd2 Kc5 58. Bc1 Kd5 59. Ba3 Ke4 60. Bc1 Bd7 61. Bd2 Bc6 62. Bc1 Kf3 63. Bd2 Bb5 64. Bc1 Bc4 65. Bd2 (depth 52, 0:54:27)


So, after Fischer's 19...Bg4, Cfish-dev prefers: 20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6, leading to

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

and then Cfish-dev gave

-2.70 27. Qc1 Rab8 28. Nd1 Be2 29. Re1 Bxd1 30. Rxd1 Nf5 31. Be3 Rb5 32. Qc3 Reb8 33. Rxb5 axb5 34. Qb4 a6 35. Ra1 Ra8 36. Qa5 Kg7 37. Kg2 Ne7 38. Rb1 Qd7 39. Bd2 f6 40. Qc3 Kf7 41. Qa1 Qc6 42. Be1 Ra7 43. Ba5 Qe6 44. Rb3 Nc6 45. Bd2 Qf5 46. Kh2 Qc8 47. Rb1 Kg7 48. Kg2 Qf5 49. Rb3 Qd7 50. Rb1 Qc8 51. Be1 Qb7 52. Qb2 Ra8 53. Bc3 Qc8 54. Qa2 Ne7 55. Ba5 Qb7 56. Qd2 Qd7 57. Kh2 Qe6 58. Bc3 Nf5 59. Rb3 Re8 60. Rb1 e3 61. fxe3 Qxe3 (depth 55, 3:24:08)

Haven't looked further at this, but, in any case, it seems that Black will eventually work this to a win.

[zullil]

So, after Fischer's 19...Bg4, Cfish-dev prefers: 20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6, leading to

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

and then Cfish-dev gave

-2.70 27. Qc1 Rab8 28. Nd1 Be2 29. Re1 Bxd1 30. Rxd1 Nf5 31. Be3 Rb5 32. Qc3 Reb8 33. Rxb5 axb5 34. Qb4 a6 35. Ra1 Ra8 36. Qa5 Kg7 37. Kg2 Ne7 38. Rb1 Qd7 39. Bd2 f6 40. Qc3 Kf7 41. Qa1 Qc6 42. Be1 Ra7 43. Ba5 Qe6 44. Rb3 Nc6 45. Bd2 Qf5 46. Kh2 Qc8 47. Rb1 Kg7 48. Kg2 Qf5 49. Rb3 Qd7 50. Rb1 Qc8 51. Be1 Qb7 52. Qb2 Ra8 53. Bc3 Qc8 54. Qa2 Ne7 55. Ba5 Qb7 56. Qd2 Qd7 57. Kh2 Qe6 58. Bc3 Nf5 59. Rb3 Re8 60. Rb1 e3 61. fxe3 Qxe3 (depth 55, 3:24:08)

Haven't looked further at this, but, in any case, it seems that Black will eventually work this to a win.

And now it's back to 27. Be3. So I'll need to look more closely at 27...Ng4+ instead of 27...Kg7.

-2.38 27. Be3 Kg7 28. f5 Nxf5 29. Qa2 Red8 30. Bf4 f6 31. h4 Nxd4 32. Rfb1 Rd7 33. Rd2 Nb5 34. Qb2 Rc8 35. Nxb5 axb5 36. Qxb5 d4 37. Be3 Qxb5 38. Rxb5 d3 39. Ra5 Rcc7 40. Rda2 Kf7 41. Ra6 Bg4 42. R6a3 Be2 43. Kh3 Ke7 44. Ra4 Bf3 45. Kh2 Ke6 46. Ra6+ Kf7 47. R6a3 Bg4 48. Ra6 Be6 49. Rb2 Bc4 50. Ra4 Bd5 51. Ra6 Bc6 52. Kg1 Ke6 53. Bf4 Rc8 54. Rba2 Kd5 55. Rb2 Kc4 56. Kf1 Kc3 57. Raa2 Bd5 58. Bd2+ Kd4 59. Be3+ Ke5 60. Ra5 Kf5 61. Rb1 Bc6 62. Ke1 Kg4 63. Ra6 Kf3 64. Rb4 f5 65. Ra5 Kg4 (depth 60, 6:08:56)

Will let Lc0 take a look at this position ...

[zullil]

So, after Fischer's 19...Bg4, Cfish-dev prefers: 20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6, leading to

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

and then Cfish-dev gave

-2.70 27. Qc1 Rab8 28. Nd1 Be2 29. Re1 Bxd1 30. Rxd1 Nf5 31. Be3 Rb5 32. Qc3 Reb8 33. Rxb5 axb5 34. Qb4 a6 35. Ra1 Ra8 36. Qa5 Kg7 37. Kg2 Ne7 38. Rb1 Qd7 39. Bd2 f6 40. Qc3 Kf7 41. Qa1 Qc6 42. Be1 Ra7 43. Ba5 Qe6 44. Rb3 Nc6 45. Bd2 Qf5 46. Kh2 Qc8 47. Rb1 Kg7 48. Kg2 Qf5 49. Rb3 Qd7 50. Rb1 Qc8 51. Be1 Qb7 52. Qb2 Ra8 53. Bc3 Qc8 54. Qa2 Ne7 55. Ba5 Qb7 56. Qd2 Qd7 57. Kh2 Qe6 58. Bc3 Nf5 59. Rb3 Re8 60. Rb1 e3 61. fxe3 Qxe3 (depth 55, 3:24:08)

Haven't looked further at this, but, in any case, it seems that Black will eventually work this to a win.

And now it's back to 27. Be3. So I'll need to look more closely at 27...Ng4+ instead of 27...Kg7.

-2.38 27. Be3 Kg7 28. f5 Nxf5 29. Qa2 Red8 30. Bf4 f6 31. h4 Nxd4 32. Rfb1 Rd7 33. Rd2 Nb5 34. Qb2 Rc8 35. Nxb5 axb5 36. Qxb5 d4 37. Be3 Qxb5 38. Rxb5 d3 39. Ra5 Rcc7 40. Rda2 Kf7 41. Ra6 Bg4 42. R6a3 Be2 43. Kh3 Ke7 44. Ra4 Bf3 45. Kh2 Ke6 46. Ra6+ Kf7 47. R6a3 Bg4 48. Ra6 Be6 49. Rb2 Bc4 50. Ra4 Bd5 51. Ra6 Bc6 52. Kg1 Ke6 53. Bf4 Rc8 54. Rba2 Kd5 55. Rb2 Kc4 56. Kf1 Kc3 57. Raa2 Bd5 58. Bd2+ Kd4 59. Be3+ Ke5 60. Ra5 Kf5 61. Rb1 Bc6 62. Ke1 Kg4 63. Ra6 Kf3 64. Rb4 f5 65. Ra5 Kg4 (depth 60, 6:08:56)

Will let Lc0 take a look at this position ...

Lc0 with network 320x24.J13-swa-410000 and 100M nodes also prefers 27. Be3.

Top four lines:

info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -136 hashfull 149 nps 40558 tbhits 11 multipv 1 pv d2e3 g8g7 b1c2 c6d7 h3h4 h6g4 h2g1 g4f6 g1h2 e8b8 f1b1 b8b2 c2b2 a8e8 b2a2 a6a5 a2a4 d7f5 a4a2 f5d7 a2a4 d7e6 a4a2 f6g4 h2g1 g4h6 g1f1 e6h3 f1e1 h3g2 c3d5 h6f5 a2c4 e8d8 d5c3 f5e3 f2e3 g2g3 e1d2 g3h4 c5c6 h4f2 c3e2 h5h4 b1b7 d8f8 c6c7 f8c8 d4d5 f3e2 c4e2 f2e2 d2e2 g7f6 b7a7 f6e7 a7a6 e7d7 d5d6 a5a4 e2f2 a4a3 f2g2 a3a2 g2h3

info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -148 hashfull 149 nps 40558 tbhits 11 multipv 2 pv b1c1 a8b8 b2b8 e8b8 c1c2 h6g4 h2g1 c6d7 f4f5 d7f5 d2f4 g4f6 g1h2 f6g4 h2g1 b8e8 h3h4 g4f6 g1h2 f6g4 h2g1 g4f6 g1h2 g8h7 f1c1 e8g8 c5c6 g6g5 f4g5 f6g4 h2g1 f7f6

info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -149 hashfull 149 nps 40558 tbhits 11 multipv 3 pv b1a2 h6g4 h2g1 g4f6 g1h2 c6d7 d2e3 g8g7 b2b4 e8h8 h3h4 f6g4 h2g1 g4f6 g1h2 a6a5 b4b5 h8b8 f1b1 b8b5 b1b5 a5a4 b5b1 a4a3 b1b3 f6g4 h2g1 a7a5 b3a3 g4f6 g1h2 a8a7 c3a4 f6g4 h2g1 g4h6 g1h2 a7b7 a4b6 d7b5 h2g1 h6f5 a3a5

info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -150 hashfull 149 nps 40558 tbhits 11 multipv 4 pv f1e1 g8g7 b1a2 a8d8 c3d1 h6g4 h2g1 c6d7 a2a6 e4e3 f2e3 f3d1 a6f1 d1a4 h3g4 d7g4 f1e2 g4f5 d2a5 d8d7 e2f3 d7e7 b2g2 a4d7 a5c7 f7f6 c7d6 e7e4 g2b2

Further info from the lc0 log file:

Code: Select all

0816 13:54:49.245892 139967625205504 ../../src/mcts/search.cc:384] Stopped search: Reached visits limit: 100000167>=100000000
0816 13:54:49.248597 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -136 hashfull 149 nps 40558 tbhits 11 multipv 1 pv d2e3 g8g7 b1c2 c6d7 h3h4 h6g4 h2g1 g4f6 g1h2 e8b8 f1b1 b8b2 c2b2 a8e8 b2a2 a6a5 a2a4 d7f5 a4a2 f5d7 a2a4 d7e6 a4a2 f6g4 h2g1 g4h6 g1f1 e6h3 f1e1 h3g2 c3d5 h6f5 a2c4 e8d8 d5c3 f5e3 f2e3 g2g3 e1d2 g3h4 c5c6 h4f2 c3e2 h5h4 b1b7 d8f8 c6c7 f8c8 d4d5 f3e2 c4e2 f2e2 d2e2 g7f6 b7a7 f6e7 a7a6 e7d7 d5d6 a5a4 e2f2 a4a3 f2g2 a3a2 g2h3
0816 13:54:49.248626 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -148 hashfull 149 nps 40558 tbhits 11 multipv 2 pv b1c1 a8b8 b2b8 e8b8 c1c2 h6g4 h2g1 c6d7 f4f5 d7f5 d2f4 g4f6 g1h2 f6g4 h2g1 b8e8 h3h4 g4f6 g1h2 f6g4 h2g1 g4f6 g1h2 g8h7 f1c1 e8g8 c5c6 g6g5 f4g5 f6g4 h2g1 f7f6
0816 13:54:49.248638 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -149 hashfull 149 nps 40558 tbhits 11 multipv 3 pv b1a2 h6g4 h2g1 g4f6 g1h2 c6d7 d2e3 g8g7 b2b4 e8h8 h3h4 f6g4 h2g1 g4f6 g1h2 a6a5 b4b5 h8b8 f1b1 b8b5 b1b5 a5a4 b5b1 a4a3 b1b3 f6g4 h2g1 a7a5 b3a3 g4f6 g1h2 a8a7 c3a4 f6g4 h2g1 g4h6 g1h2 a7b7 a4b6 d7b5 h2g1 h6f5 a3a5
0816 13:54:49.248647 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -150 hashfull 149 nps 40558 tbhits 11 multipv 4 pv f1e1 g8g7 b1a2 a8d8 c3d1 h6g4 h2g1 c6d7 a2a6 e4e3 f2e3 f3d1 a6f1 d1a4 h3g4 d7g4 f1e2 g4f5 d2a5 d8d7 e2f3 d7e7 b2g2 a4d7 a5c7 f7f6 c7d6 e7e4 g2b2
0816 13:54:49.248657 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -166 hashfull 149 nps 40558 tbhits 11 multipv 5 pv c3d1 h6g4 h2g1 c6c8 f4f5 c8f5 d2f4 g4h6 g1h2 h6g4 h2g1 h5h4 h3g4 f5g4 g1h2 g6g5 f4e5 e8e5 d4e5 g4h5 h2g1 h5g4 g1h2 h4g3 f2g3 g8g7 f1f3 a8h8 h2g1 e4f3 d1e3 g4g3 b2g2 g3e5 e3f5 g7f6 g2f2
0816 13:54:49.248666 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -154 hashfull 149 nps 40558 tbhits 11 multipv 6 pv b2b7 h6g4 h2g1 c6e6 b1a2 a8d8 d2e3 h5h4 f4f5 e6c8 e3g5 c8b7 h3g4 g8g7 g5d8 e8d8 g3h4 g6f5 a2d2 b7e7 g4g5 e7c7 f1c1 f5f4 c3e2 f3e2 d2e2 f4f3 e2a6 c7f4 a6f6 f4f6 g5f6
0816 13:54:49.248674 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -165 hashfull 149 nps 40558 tbhits 11 multipv 7 pv f1g1 g8g7 g1e1 h6g4 h2g1 c6e6 b2b7 e6f5 h3h4 a8d8 c3d1 d8d7 b7b3 d7e7 d2a5 f5c8 a5d2 g4h6
0816 13:54:49.248682 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -182 hashfull 149 nps 40558 tbhits 11 multipv 8 pv f1c1 h6g4 h2g1 c6e6 b2b3 g8g7 c1e1 h5h4 c3d1 e6c8 f4f5 c8f5 h3g4 f5g4 b3f3 e4f3 e1e8 a8e8 d1e3 e8e3 d2e3 h4g3 b1b8 g3f2 g1f2 g4g2 f2e1 g2e2
0816 13:54:49.248690 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -159 hashfull 149 nps 40558 tbhits 11 multipv 9 pv b1e1 g8g7 e1c1 a8b8 f4f5 h6f5 d2f4 b8b2 c1b2 f5d4 f4e3 d4f5 c3e4 f7f6 e4d6 f5d6 c5d6 c6d6 b2c3 f3e2 f1e1 e2b5 e3c5 d5d4 c5d4 e8e1 c3e1 d6d4
0816 13:54:49.248699 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -162 hashfull 149 nps 40558 tbhits 11 multipv 10 pv d2c1 g8g7 b1a2 a8d8 c3b1 e8h8 b1d2 f3e2 f1e1 e2d3 d2b3 d8b8 b3a5 c6e6 b2b8 h8b8 c1e3 h6f5
0816 13:54:49.248717 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -206 hashfull 149 nps 40558 tbhits 11 multipv 11 pv f4f5 h6f5 b1a2 a8d8 b2b4 a6a5 a2a5 c6f6 d2e3 h5h4 g3g4 f3g4 a5b5 f5e3 f2e3 g4f3 f1g1 e8e5 b5a5 e5g5 b4b1 d8c8 a5a7 g5g1 b1g1
0816 13:54:49.248725 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -185 hashfull 149 nps 40558 tbhits 11 multipv 12 pv b1a1 h6g4 h2g1 c6e6 a1a2 a8d8 h3h4 g4h6 g1h2 h6g4 h2g1 g4f6 g1h2 d8b8 b2b8 e8b8 f4f5 e6f5 d2f4
0816 13:54:49.248733 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -169 hashfull 149 nps 40558 tbhits 11 multipv 13 pv b2b3 c6f6 b1a2 h6g4 h2g1 f6d4 b3b4 d4b4 c3d5 b4c5 h3g4 e8d8 d5f6 g8g7 d2e3 c5d6 g4g5 a8c8 a2a1 d6e6 g1h2 d8d3 f1b1
0816 13:54:49.248742 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -173 hashfull 149 nps 40558 tbhits 11 multipv 14 pv b2a2 h6g4 h2g1 c6e6 f4f5 e6f5 d2f4 g4f6 g1h2 h5h4 b1c1 h4g3 f2g3 f5h5 h2g1 h5h3 a2h2 h3f5 h2h4 f6g4 c3d1 f7f6
0816 13:54:49.248750 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -193 hashfull 149 nps 40558 tbhits 11 multipv 15 pv b2b4 h6g4 h2g1 c6e6 b4b7 h5h4 f4f5 e6f5 g3h4 g4e3 f2e3 f5h3 f1f3 e4f3 b1f1 h3g3 g1h1 g3h4 h1g1 h4g3 g1h1 g8g7
0816 13:54:49.248758 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -184 hashfull 149 nps 40558 tbhits 11 multipv 16 pv b1c2 h6g4 h2g1 c6e6 f4f5 e6f5 d2f4 g4e5 g1h2 e5d3 f4e3 d3b2 c2b2 a8b8 b2a2 e8d8 a2a6 b8b3 f1c1 f5e6 a6a7 d8c8 a7a2
0816 13:54:49.248765 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -175 hashfull 149 nps 40558 tbhits 11 multipv 17 pv b2c2 h6g4 h2g1 c6e6 b1c1 h5h4 f4f5 e6f5 d2f4 f7f6 f4d6 g6g5 c3d1 g8f7 h3g4 f5g4 d1e3 g4h3 g3g4 h3h1
0816 13:54:49.248774 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -165 hashfull 149 nps 40558 tbhits 11 multipv 18 pv h3h4 h6g4 h2g1 c6e6 d2e3 a8d8 b1a2 g4e3 f2e3 e6h3 b2g2 f3g2 a2g2 h3g2 g1g2 f7f5 f1a1
0816 13:54:49.248782 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -183 hashfull 149 nps 40558 tbhits 11 multipv 19 pv h2g1 g8g7 b1a2 a8d8 c3d1 c6e6 g1h2 h6g4 h2g1 h5h4 f4f5 e6f5 d2f4 h4g3 f2g3 e8h8 h3h4 h8h4 g3h4
0816 13:54:49.248790 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -216 hashfull 149 nps 40558 tbhits 11 multipv 20 pv c3a2 h6g4 h2g1 c6e6 a2c3 h5h4 f4f5 e6f5 d2f4 g4f6 g1h2 h4g3 f2g3 f5h5 b1c1 f6g4 h2g1 h5h3 f1f3 e4f3
0816 13:54:49.248798 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -230 hashfull 149 nps 40558 tbhits 11 multipv 21 pv d2e1 h6f5 b1a2 a8d8 b2d2 g8g7 c3d1 h5h4 d1e3 h4g3 f2g3 f5e3 f1f3 e4f3 d2g2 f3g2
0816 13:54:49.248806 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -541 hashfull 149 nps 40558 tbhits 11 multipv 22 pv c3d5 c6d5 d2e3 h6f5 f1c1 a8c8 b2b7 e8e7 c5c6 c8c6 c1c6 d5c6
0816 13:54:49.248815 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -325 hashfull 149 nps 40558 tbhits 11 multipv 23 pv f1d1 f3d1 c3d1 h6f5 d1e3 f5d4 d2c3 d4f3 h2g2 d5d4 b2b7 d4c3 b1b3 c6e6 b3c3 a8c8 g3g4
0816 13:54:49.248823 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -368 hashfull 149 nps 40558 tbhits 11 multipv 24 pv f1h1 f3h1 h2h1 h6f5 d2e3 g8g7 h1g2 e8d8 b2b7 d8d7 b7d7 c6d7 b1a2 a8d8
0816 13:54:49.248831 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -376 hashfull 149 nps 40558 tbhits 11 multipv 25 pv g3g4 h5g4 f1g1 g8g7 f4f5 h6f5 d2f4 e8h8 g1g3 f5g3 f4e5 f7f6 b2b7 g7g8
0816 13:54:49.248841 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -898 hashfull 149 nps 40558 tbhits 11 multipv 26 pv c3e4 f3e4 b1d1 h6f5 f2f3 e4d3 f1f2 d3b5 g3g4 f5g7 f4f5 c6f6
0816 13:54:49.248850 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -625 hashfull 149 nps 40558 tbhits 11 multipv 27 pv c3e2 f3e2 f1e1 e2d3 b1d1 h6f5 g3g4 h5g4 h3g4 f5d4 d2c3
0816 13:54:49.248858 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -594 hashfull 149 nps 40558 tbhits 11 multipv 28 pv c3a4 c6a4 f4f5 h6f5 b2b7 a4d4 d2f4 d4c5 f1c1 c5f2
0816 13:54:49.248865 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -931 hashfull 149 nps 40558 tbhits 11 multipv 29 pv b1d1 f3d1 c3d1 h6f5 d2a5 f5d4 d1e3 c6c5 a5b4 c5c6 e3g4
0816 13:54:49.248873 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -682 hashfull 149 nps 40558 tbhits 11 multipv 30 pv b2b6 a7b6 b1b6 c6b6 c5b6 h6f5 c3d5 e8d8 b6b7 a8b8 d5f6
0816 13:54:49.248881 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -864 hashfull 149 nps 40558 tbhits 11 multipv 31 pv b1d3 e4d3 b2b4 a6a5 b4b5 a5a4 f1a1 a4a3 a1g1 a8b8
0816 13:54:49.248889 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -1353 hashfull 149 nps 40558 tbhits 11 multipv 32 pv b1e4 f3e4 c3e2 a6a5 d2b4 a5b4 e2g1 a7a5 f1c1 a5a4 b2b4 a4a3
0816 13:54:49.248897 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -688 hashfull 149 nps 40558 tbhits 11 multipv 33 pv c3b5 a6b5 b2b5 h6f5 b5b7 f3e2 f1e1 e2a6 e1c1 a6b7
0816 13:54:49.248905 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -750 hashfull 149 nps 40558 tbhits 11 multipv 34 pv b2b8 a8b8 b1b8 e8b8 f1b1 b8b1 c3e4 d5e4 d2e1 b1e1 d4d5
0816 13:54:49.248912 139967625205504 ../../src/chess/uciloop.cc:218] << info depth 25 seldepth 71 time 2464153 nodes 100000167 score cp -752 hashfull 149 nps 40558 tbhits 11 multipv 35 pv b2b5 a6b5 b1b5 c6b5 c3b5 h6f5 b5c7 f5d4 d2c3 d4e6
0816 13:54:49.249083 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b5  (237 ) N:    2694 (+ 0) (P:  0.68%) (Q: -0.96810) (D:  0.021) (U: 0.50710) (Q+U: -0.46100) (V: -0.9872) 
0816 13:54:49.249097 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b8  (243 ) N:    3370 (+ 0) (P:  0.85%) (Q: -0.96797) (D:  0.017) (U: 0.50688) (Q+U: -0.46109) (V: -0.8770) 
0816 13:54:49.249105 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3b5  (489 ) N:    3387 (+ 0) (P:  0.85%) (Q: -0.96427) (D:  0.020) (U: 0.50320) (Q+U: -0.46107) (V: -0.9556) 
0816 13:54:49.249113 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1e4  (39  ) N:    3421 (+ 0) (P:  0.89%) (Q: -0.98453) (D:  0.004) (U: 0.52347) (Q+U: -0.46106) (V: -0.9964) 
0816 13:54:49.249124 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1d3  (37  ) N:    3449 (+ 0) (P:  0.88%) (Q: -0.97320) (D:  0.017) (U: 0.51213) (Q+U: -0.46108) (V: -0.9906) 
0816 13:54:49.249132 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b6  (239 ) N:    3577 (+ 0) (P:  0.90%) (Q: -0.96382) (D:  0.011) (U: 0.50279) (Q+U: -0.46103) (V: -0.6199) 
0816 13:54:49.249140 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1d1  (25  ) N:    3708 (+ 0) (P:  0.95%) (Q: -0.97558) (D:  0.013) (U: 0.51453) (Q+U: -0.46105) (V: -0.9925) 
0816 13:54:49.249147 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3a4  (483 ) N:    3779 (+ 0) (P:  0.93%) (Q: -0.95670) (D:  0.028) (U: 0.49555) (Q+U: -0.46114) (V: -0.9746) 
0816 13:54:49.249158 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3e2  (475 ) N:    3856 (+ 0) (P:  0.96%) (Q: -0.95948) (D:  0.023) (U: 0.49836) (Q+U: -0.46113) (V: -0.8879) 
0816 13:54:49.249166 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3e4  (487 ) N:    3916 (+ 0) (P:  1.00%) (Q: -0.97444) (D:  0.011) (U: 0.51339) (Q+U: -0.46105) (V: -0.9632) 
0816 13:54:49.249174 139967625205504 ../../src/chess/uciloop.cc:218] << info string g3g4  (615 ) N:    4004 (+ 0) (P:  0.91%) (Q: -0.91543) (D:  0.052) (U: 0.45434) (Q+U: -0.46109) (V: -0.8882) 
0816 13:54:49.249181 139967625205504 ../../src/chess/uciloop.cc:218] << info string f1h1  (128 ) N:    4328 (+ 0) (P:  0.97%) (Q: -0.91233) (D:  0.059) (U: 0.45127) (Q+U: -0.46106) (V: -0.8365) 
0816 13:54:49.249190 139967625205504 ../../src/chess/uciloop.cc:218] << info string f1d1  (125 ) N:    4502 (+ 0) (P:  0.96%) (Q: -0.89053) (D:  0.074) (U: 0.42941) (Q+U: -0.46112) (V: -0.7585) 
0816 13:54:49.249198 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3d5  (491 ) N:    5096 (+ 0) (P:  1.24%) (Q: -0.95076) (D:  0.021) (U: 0.48971) (Q+U: -0.46105) (V: -0.6074) 
0816 13:54:49.249206 139967625205504 ../../src/chess/uciloop.cc:218] << info string d2e1  (277 ) N:    9469 (+ 0) (P:  1.43%) (Q: -0.76461) (D:  0.161) (U: 0.30357) (Q+U: -0.46104) (V: -0.7381) 
0816 13:54:49.249213 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3a2  (471 ) N:   10981 (+ 0) (P:  1.46%) (Q: -0.72697) (D:  0.156) (U: 0.26596) (Q+U: -0.46101) (V: -0.6743) 
0816 13:54:49.249221 139967625205504 ../../src/chess/uciloop.cc:218] << info string h2g1  (389 ) N:   15958 (+ 0) (P:  1.28%) (Q: -0.62183) (D:  0.226) (U: 0.16082) (Q+U: -0.46102) (V: -0.8414) 
0816 13:54:49.249229 139967625205504 ../../src/chess/uciloop.cc:218] << info string h3h4  (642 ) N:   18572 (+ 0) (P:  0.92%) (Q: -0.56212) (D:  0.287) (U: 0.09888) (Q+U: -0.46324) (V: -0.7493) 
0816 13:54:49.249237 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2c2  (223 ) N:   19634 (+ 0) (P:  1.30%) (Q: -0.59413) (D:  0.223) (U: 0.13312) (Q+U: -0.46100) (V: -0.5577) 
0816 13:54:49.249245 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1c2  (32  ) N:   21133 (+ 0) (P:  1.73%) (Q: -0.62502) (D:  0.209) (U: 0.16402) (Q+U: -0.46100) (V: -0.4600) 
0816 13:54:49.249253 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b4  (234 ) N:   22487 (+ 0) (P:  2.17%) (Q: -0.65475) (D:  0.189) (U: 0.19375) (Q+U: -0.46100) (V: -0.4293) 
0816 13:54:49.249261 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2a2  (222 ) N:   23355 (+ 0) (P:  1.47%) (Q: -0.58710) (D:  0.230) (U: 0.12610) (Q+U: -0.46100) (V: -0.4979) 
0816 13:54:49.249269 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b3  (230 ) N:   29491 (+ 0) (P:  1.67%) (Q: -0.57429) (D:  0.241) (U: 0.11328) (Q+U: -0.46101) (V: -0.4483) 
0816 13:54:49.249276 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1a1  (23  ) N:   29655 (+ 0) (P:  2.46%) (Q: -0.62707) (D:  0.205) (U: 0.16606) (Q+U: -0.46100) (V: -0.3477) 
0816 13:54:49.249284 139967625205504 ../../src/chess/uciloop.cc:218] << info string f4f5  (830 ) N:   34174 (+ 0) (P:  3.97%) (Q: -0.69432) (D:  0.195) (U: 0.23331) (Q+U: -0.46101) (V: -0.3830) 
0816 13:54:49.249291 139967625205504 ../../src/chess/uciloop.cc:218] << info string d2c1  (275 ) N:   39488 (+ 0) (P:  1.57%) (Q: -0.55005) (D:  0.262) (U: 0.07995) (Q+U: -0.47010) (V: -0.4607) 
0816 13:54:49.249299 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1e1  (26  ) N:   39647 (+ 0) (P:  1.29%) (Q: -0.54064) (D:  0.283) (U: 0.06514) (Q+U: -0.47550) (V: -0.5210) 
0816 13:54:49.249307 139967625205504 ../../src/chess/uciloop.cc:218] << info string f1c1  (124 ) N:   45590 (+ 0) (P:  3.58%) (Q: -0.61844) (D:  0.201) (U: 0.15743) (Q+U: -0.46100) (V: -0.4875) 
0816 13:54:49.249315 139967625205504 ../../src/chess/uciloop.cc:218] << info string f1g1  (127 ) N:   64209 (+ 0) (P:  3.09%) (Q: -0.56063) (D:  0.241) (U: 0.09660) (Q+U: -0.46403) (V: -0.4400) 
0816 13:54:49.249328 139967625205504 ../../src/chess/uciloop.cc:218] << info string b2b7  (241 ) N:  201502 (+ 0) (P:  3.91%) (Q: -0.52404) (D:  0.243) (U: 0.03893) (Q+U: -0.48510) (V: -0.4325) 
0816 13:54:49.249336 139967625205504 ../../src/chess/uciloop.cc:218] << info string c3d1  (469 ) N:  247315 (+ 0) (P: 12.35%) (Q: -0.56291) (D:  0.222) (U: 0.10020) (Q+U: -0.46272) (V: -0.4164) 
0816 13:54:49.249344 139967625205504 ../../src/chess/uciloop.cc:218] << info string f1e1  (126 ) N:  296470 (+ 0) (P:  2.78%) (Q: -0.51130) (D:  0.281) (U: 0.01881) (Q+U: -0.49249) (V: -0.4460) 
0816 13:54:49.249352 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1a2  (30  ) N: 4287202 (+ 0) (P: 21.37%) (Q: -0.50587) (D:  0.278) (U: 0.01000) (Q+U: -0.49587) (V: -0.2659) 
0816 13:54:49.249359 139967625205504 ../../src/chess/uciloop.cc:218] << info string b1c1  (24  ) N: 8427285 (+ 0) (P:  1.62%) (Q: -0.50302) (D:  0.311) (U: 0.00038) (Q+U: -0.50263) (V: -0.4510) 
0816 13:54:49.249367 139967625205504 ../../src/chess/uciloop.cc:218] << info string d2e3  (289 ) N: 86063462 (+ 4) (P: 15.59%) (Q: -0.46136) (D:  0.306) (U: 0.00036) (Q+U: -0.46100) (V: -0.1685) 
0816 13:54:49.249376 139967625205504 ../../src/mcts/search.cc:294] --- Opponent moves after: d2e3
0816 13:54:49.249601 139967625205504 ../../src/mcts/search.cc:299] c6b6  (477 ) N:     643 (+ 0) (P:  0.50%) (Q: -0.97300) (D:  0.013) (U: 1.43568) (Q+U:  0.46267) (V: -0.9930) 
0816 13:54:49.249611 139967625205504 ../../src/mcts/search.cc:299] c6b5  (484 ) N:     722 (+ 0) (P:  0.57%) (Q: -0.98430) (D:  0.009) (U: 1.44712) (Q+U:  0.46282) (V: -0.9921) 
0816 13:54:49.249616 139967625205504 ../../src/mcts/search.cc:299] f3d1  (1321) N:     733 (+ 0) (P:  0.58%) (Q: -0.98400) (D:  0.011) (U: 1.44544) (Q+U:  0.46144) (V: -0.9959) 
0816 13:54:49.249620 139967625205504 ../../src/mcts/search.cc:299] c6b7  (472 ) N:     747 (+ 0) (P:  0.57%) (Q: -0.94589) (D:  0.025) (U: 1.40717) (Q+U:  0.46128) (V: -0.9890) 
0816 13:54:49.249625 139967625205504 ../../src/mcts/search.cc:299] c6a4  (488 ) N:     753 (+ 0) (P:  0.59%) (Q: -0.97000) (D:  0.017) (U: 1.43122) (Q+U:  0.46121) (V: -0.9887) 
0816 13:54:49.249630 139967625205504 ../../src/mcts/search.cc:299] c6d6  (478 ) N:     753 (+ 0) (P:  0.59%) (Q: -0.96605) (D:  0.015) (U: 1.42843) (Q+U:  0.46238) (V: -0.9767) 
0816 13:54:49.249635 139967625205504 ../../src/mcts/search.cc:299] f3e2  (1317) N:     765 (+ 0) (P:  0.61%) (Q: -0.98706) (D:  0.007) (U: 1.44943) (Q+U:  0.46236) (V: -0.9538) 
0816 13:54:49.249639 139967625205504 ../../src/mcts/search.cc:299] f3h1  (1325) N:     773 (+ 0) (P:  0.60%) (Q: -0.97002) (D:  0.020) (U: 1.43173) (Q+U:  0.46172) (V: -0.9443) 
0816 13:54:49.249644 139967625205504 ../../src/mcts/search.cc:299] e8e5  (115 ) N:     792 (+ 0) (P:  0.62%) (Q: -0.97104) (D:  0.016) (U: 1.43271) (Q+U:  0.46167) (V: -0.9790) 
0816 13:54:49.249649 139967625205504 ../../src/mcts/search.cc:299] c6c5  (485 ) N:     841 (+ 0) (P:  0.66%) (Q: -0.98280) (D:  0.006) (U: 1.44527) (Q+U:  0.46246) (V: -0.9823) 
0816 13:54:49.249654 139967625205504 ../../src/mcts/search.cc:299] f3g2  (1319) N:     855 (+ 0) (P:  0.67%) (Q: -0.96511) (D:  0.017) (U: 1.42817) (Q+U:  0.46305) (V: -0.9184) 
0816 13:54:49.249658 139967625205504 ../../src/mcts/search.cc:299] a8b8  (0   ) N:     963 (+ 0) (P:  0.74%) (Q: -0.93608) (D:  0.026) (U: 1.39839) (Q+U:  0.46231) (V: -0.1915) 
0816 13:54:49.249663 139967625205504 ../../src/mcts/search.cc:299] e8b8  (98  ) N:    1032 (+ 0) (P:  0.78%) (Q: -0.92217) (D:  0.038) (U: 1.38521) (Q+U:  0.46304) (V: -0.1837) 
0816 13:54:49.249668 139967625205504 ../../src/mcts/search.cc:299] g6g5  (615 ) N:    1442 (+ 0) (P:  0.74%) (Q: -0.47752) (D:  0.245) (U: 0.94026) (Q+U:  0.46273) (V: -0.1506) 
0816 13:54:49.249672 139967625205504 ../../src/mcts/search.cc:299] f7f5  (351 ) N:    1602 (+ 0) (P:  0.95%) (Q: -0.62332) (D:  0.208) (U: 1.08637) (Q+U:  0.46305) (V: -0.3690) 
0816 13:54:49.249677 139967625205504 ../../src/mcts/search.cc:299] f7f6  (346 ) N:    2571 (+ 0) (P:  1.15%) (Q: -0.35691) (D:  0.364) (U: 0.81984) (Q+U:  0.46293) (V: -0.2617) 
0816 13:54:49.249685 139967625205504 ../../src/mcts/search.cc:299] c6c7  (473 ) N:    2666 (+ 0) (P:  0.96%) (Q: -0.19622) (D:  0.332) (U: 0.65925) (Q+U:  0.46303) (V: -0.5030) 
0816 13:54:49.249690 139967625205504 ../../src/mcts/search.cc:299] f3g4  (1307) N:    3255 (+ 0) (P:  2.42%) (Q: -0.89888) (D:  0.060) (U: 1.36181) (Q+U:  0.46293) (V: -0.2896) 
0816 13:54:49.249695 139967625205504 ../../src/mcts/search.cc:299] e8e6  (111 ) N:    3480 (+ 0) (P:  1.12%) (Q: -0.12677) (D:  0.405) (U: 0.58968) (Q+U:  0.46291) (V: -0.1781) 
0816 13:54:49.249700 139967625205504 ../../src/mcts/search.cc:299] e8c8  (99  ) N:    5554 (+ 0) (P:  1.45%) (Q: -0.01677) (D:  0.412) (U: 0.47968) (Q+U:  0.46291) (V: -0.0132) 
0816 13:54:49.249705 139967625205504 ../../src/mcts/search.cc:299] c6c8  (468 ) N:    5610 (+ 0) (P:  1.10%) (Q:  0.10490) (D:  0.406) (U: 0.35810) (Q+U:  0.46301) (V: -0.1385) 
0816 13:54:49.249709 139967625205504 ../../src/mcts/search.cc:299] e8e7  (106 ) N:    5917 (+ 0) (P:  1.71%) (Q: -0.06808) (D:  0.401) (U: 0.53109) (Q+U:  0.46301) (V: -0.0034) 
0816 13:54:49.249714 139967625205504 ../../src/mcts/search.cc:299] e8f8  (101 ) N:    6001 (+ 0) (P:  1.52%) (Q: -0.00009) (D:  0.402) (U: 0.46307) (Q+U:  0.46298) (V: -0.0222) 
0816 13:54:49.249719 139967625205504 ../../src/mcts/search.cc:299] h5h4  (888 ) N:    6212 (+ 0) (P:  3.19%) (Q: -0.47941) (D:  0.274) (U: 0.94241) (Q+U:  0.46300) (V:  0.1298) 
0816 13:54:49.249723 139967625205504 ../../src/mcts/search.cc:299] g8h8  (153 ) N:    6518 (+ 0) (P:  1.34%) (Q:  0.08701) (D:  0.357) (U: 0.37603) (Q+U:  0.46304) (V: -0.1371) 
0816 13:54:49.249728 139967625205504 ../../src/mcts/search.cc:299] g8f8  (152 ) N:    6861 (+ 0) (P:  1.43%) (Q:  0.08159) (D:  0.364) (U: 0.38139) (Q+U:  0.46298) (V: -0.0378) 
0816 13:54:49.249733 139967625205504 ../../src/mcts/search.cc:299] g8h7  (157 ) N:    7605 (+ 0) (P:  1.65%) (Q:  0.06530) (D:  0.364) (U: 0.39759) (Q+U:  0.46290) (V: -0.0945) 
0816 13:54:49.249737 139967625205504 ../../src/mcts/search.cc:299] c6f6  (480 ) N:   15984 (+ 0) (P:  0.95%) (Q:  0.35439) (D:  0.284) (U: 0.10864) (Q+U:  0.46303) (V: -0.1740) 
0816 13:54:49.249742 139967625205504 ../../src/mcts/search.cc:299] a6a5  (425 ) N:   16882 (+ 0) (P:  3.69%) (Q:  0.06223) (D:  0.448) (U: 0.40083) (Q+U:  0.46306) (V:  0.0663) 
0816 13:54:49.249747 139967625205504 ../../src/mcts/search.cc:299] a8c8  (1   ) N:   21968 (+ 0) (P:  3.96%) (Q:  0.13297) (D:  0.367) (U: 0.33006) (Q+U:  0.46303) (V:  0.0328) 
0816 13:54:49.249751 139967625205504 ../../src/mcts/search.cc:299] e8d8  (100 ) N:   26670 (+ 0) (P:  3.64%) (Q:  0.21289) (D:  0.394) (U: 0.25016) (Q+U:  0.46305) (V:  0.1000) 
0816 13:54:49.249756 139967625205504 ../../src/mcts/search.cc:299] h6f5  (640 ) N:   33419 (+ 0) (P: 11.91%) (Q: -0.19053) (D:  0.465) (U: 0.65359) (Q+U:  0.46305) (V: -0.0559) 
0816 13:54:49.249761 139967625205504 ../../src/mcts/search.cc:299] c6d7  (474 ) N:   46248 (+ 0) (P:  3.68%) (Q:  0.31721) (D:  0.288) (U: 0.14584) (Q+U:  0.46305) (V: -0.1611) 
0816 13:54:49.249765 139967625205504 ../../src/mcts/search.cc:299] c6e6  (479 ) N:   85222 (+ 0) (P:  8.36%) (Q:  0.28324) (D:  0.344) (U: 0.17982) (Q+U:  0.46306) (V:  0.0206) 
0816 13:54:49.249770 139967625205504 ../../src/mcts/search.cc:299] a8d8  (2   ) N:  123938 (+ 0) (P: 10.50%) (Q:  0.30777) (D:  0.330) (U: 0.15529) (Q+U:  0.46306) (V:  0.1370) 
0816 13:54:49.249775 139967625205504 ../../src/mcts/search.cc:299] h6g4  (644 ) N:  128473 (+ 0) (P: 11.07%) (Q:  0.30502) (D:  0.278) (U: 0.15804) (Q+U:  0.46306) (V:  0.1249) 
0816 13:54:49.249779 139967625205504 ../../src/mcts/search.cc:299] g8g7  (156 ) N: 85488991 (+ 4) (P: 13.44%) (Q:  0.46277) (D:  0.306) (U: 0.00029) (Q+U:  0.46306) (V:  0.1202) 
0816 13:54:49.249787 139967625205504 ../../src/chess/uciloop.cc:218] << bestmove d2e3 ponder g8g7
0816 13:54:49.249838 139970123654912 ../../src/mcts/search.cc:700] End a watchdog thread.

[acase]

On the 27.Be3 Ng4+ line I have this from Stockfish:


[d]r3r1k1/p4p2/p1q3p1/2Pp3p/3PpPn1/2N1BbPP/1R3P1K/1Q3R2 w - - 2 28




63/114 19:11:45 1,993,635,318k 28,849k -5.20 28.Kh2-g1 Qc6-e6 29.h3-h4 Ng4xe3 30.f2xe3 Qe6-h3 31.Kg1-f2 Qh3-h2+ 32.Kf2-e1 Qh2xg3+ 33.Ke1-d2 Qg3-g2+ 34.Kd2-e1 Qg2-g4 35.Ke1-d2 Qg4xh4 36.f4-f5 Qh4-h2+ 37.Kd2-c1 Qh2-h3 38.Rb2-f2 Ra8-b8 39.Qb1-a2 Qh3xf5 40.Qa2xd5 Qf5-g4 41.c5-c6 Qg4-e6 42.Qd5xe6 f7xe6 43.Rf1-g1 Re8-c8 44.Rg1xg6+ Kg8-f7 45.Rg6-g5 Rc8xc6 46.Rg5-c5 Rc6xc5 47.d4xc5 Kf7-e7 48.Rf2-a2 h5-h4 49.Ra2xa6 Rb8-h8 50.Ra6xa7+ Ke7-f6 51.Ra7-d7 h4-h3 52.Nc3-d1 Rh8-c8 53.Nd1-f2 Rc8xc5+ 54.Kc1-d2 Rc5-h5 55.Rd7-c7 h3-h2 56.Kd2-e1 h2-h1Q+ 57.Nf2xh1 Rh5xh1+ 58.Ke1-f2 Rh1-h2+ 59.Kf2-g3 Rh2-g2+ 60.Kg3-h3 Rg2-g6 61.Kh3-h2 Rg6-g8 62.Rc7-c2 Kf6-e7 63.Rc2-f2 Ke7-d6 64.Rf2-d2+ Kd6-c6 65.Rd2-c2+ Kc6-d5 66.Kh2-h3 Kd5-d6 67.Rc2-d2+ Kd6-c5 68.Rd2-c2+ Kc5-d5 69.Kh3-h2 Rg8-g6 70.Kh2-h3 e6-e5 71.Kh3-h2 Kd5-e6 72.Rc2-c7

64/87- 19:51:42 2,063,510,417k 28,859k -5.30 28.Kh2-g1 Qc6-e6

64/87- 22:41:51 2,360,808,005k 28,892k -5.39 28.Kh2-g1 Qc6-e6

64/89+ 22:58:51 2,390,354,800k 28,893k -5.30 28.Kh2-g1



and this if white captures the Knight instead of moving the king:


58/95 2:56:19 306,055,354k 28,929k -4.49 28.h3xg4 h5xg4 29.Rf1-h1 Kg8-g7 30.Kh2-g1 Re8-h8 31.Rh1-h4 Rh8xh4 32.g3xh4 Ra8-h8 33.Nc3-e2 Qc6-f6 34.Kg1-f1 Qf6xh4 35.Kf1-e1 Bf3xe2 36.Ke1xe2 g4-g3 37.Rb2-c2 Qh4-h3 38.Rc2-c3 g3xf2 39.Qb1-f1 Qh3-f3+ 40.Ke2-d2 Rh8-h1 41.Qf1xh1 Qf3xh1 42.Be3xf2 Qh1-h2 43.Kd2-e2 Qh2xf4 44.c5-c6 Qf4-b8 45.Ke2-d1 Kg7-f6 46.c6-c7 Qb8-c8 47.Bf2-g3 Kf6-e7 48.Rc3-c5 Ke7-e6 49.Bg3-e5 g6-g5 50.Kd1-d2 a6-a5 51.Rc5-b5 a5-a4 52.Rb5-b8 Ke6-d7 53.Rb8xc8 Kd7xc8 54.Be5-d6 f7-f5 55.Bd6-e7 f5-f4 56.Be7xg5 e4-e3+ 57.Kd2-d3 a4-a3 58.Kd3-c2 e3-e2 59.Bg5-h4 Kc8xc7 60.Kc2-b3 Kc7-d7 61.Kb3xa3 Kd7-e6 62.Ka3-b4 f4-f3 63.Bh4-f2 Ke6-f5 64.Kb4-c5 Kf5-e4 65.Kc5-b5 Ke4-d3 66.Kb5-c5 a7-a5 67.Kc5-b5 Kd3-d2

59/58- 3:40:56 381,699,542k 28,794k -4.59 28.h3xg4 h5xg4

59/85- 4:13:01 436,269,887k 28,736k -4.68 28.h3xg4 h5xg4

[zullil]

On the 27.Be3 Ng4+ line I have this from Stockfish:

[d]r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1K/1Q3R2 w - - 0 27

OK, 27. Be3 loses.

Here's Cfish-dev's current alternative:

-2.51 27. Qc1 Rab8 28. Nd1 Nf5 29. Rxb8 Rxb8 30. Ne3 Nxd4 31. Qc3 Nb5 32. Qe5 Re8 33. Qxd5 Qxd5 34. Nxd5 Rd8 35. Nf6+ Kg7 36. Ba5 Rc8 37. Nd5 Rxc5 38. Ne3 f5 39. Bb4 Rc6 40. Rb1 Kf7 41. Bd2 Be2 42. Rb4 Rd6 43. Rb2 Nd4 44. Bc3 Nf3+ 45. Kg2 Bb5 46. Ba5 Ke6 47. g4 Rd3 48. Rb1 Rd7 49. Rc1 h4 50. Rc2 Rb7 51. Kh1 Bd7 52. Rc1 Rb5 53. Ra1 Rb2 54. Kg2 Bb5 55. Bc3 Rb3 56. Bh8 Bd3 57. Bg7 Rb7 58. Bc3 Rb8 59. Rd1 Rb3 60. Ba5 Rb7 61. Bd8 Rb5 62. Ra1 Rb3 63. Ba5 Rb8 64. Bc3 Rb7 65. Ba5 Be2 66. Kh1 Rd7 67. Rb1 Bb5 68. Bb4 Rc7 69. Kg2 Bd3 70. Rd1 Rb7 71. Bc3 Be2 72. Ra1 Rc7 73. Bb4 Rc6 74. Ba5 Bd3 75. Bb4 Rc8 76. Kh1 Nd4 77. gxf5+ gxf5 78. Kg2 (depth 68, 9:57:01)

[acase]

Looks like Cfish gets it wrong (for Black) with 27.Qc1 Rab8 28.Nd1? Nf5!? which of course wins, but the more forceful 28...Rxb2! is better which forces 29.Qxb2 (if 29.Nxb2 then 29...Qf6! wins quickly) followed by 29...Ng4+


It looks like an improvement for white instead of 28.Nd1? is to try 28.Be3. It also looks like Black can also try 27.Qc1 Qe6, but in Cfish's line 28.Nd1? definitely loses to 28...Rxb2!



[pgn][Event "Computer chess game"] [Site "WORKSTATION-PC"] [Date "2019.08.14"] [Round "?"] [White "Stockfish_19081422_x64_bmi2"] [Black "Workstation"] [Result "*"] [BlackElo "2400"] [Time "19:25:29"] [WhiteElo "2000"] [TimeControl "1800+5"] [SetUp "1"] [FEN "r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20"] [Termination "unterminated"] [PlyCount "12"] [WhiteType "program"] [BlackType "human"] 20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. Ng2 {This move is probably worse than 22.a6} (22. a6 Ng4+ 23. Kg1 Bxf4 {23...Ne5 and 23...Nf6 also work here.} 24. exf4 Nh6 {Threatining mate in 2 beginning with 25...Qxh3} 25. Kh2 bxa6 26. bxc6 Qxc6 27. Qc1 (27. Be3 Ng4+ 28. hxg4 (28. Kg1 Qe6 29. h4 Nxe3 30. fxe3 Qh3 31. Kf2 Qg2+ 32. Ke1 Qxg3+ 33. Kd2 Qxh4) 28. .. hxg4 29. Rh1 Kg7 30. Kg1 Rh8 31. Rh4 Rxh4 32. gxh4 Rh8 33. Ne2 Qf6) 27. .. Rab8 28. Nd1 (28. Be3 Kg7) 28. .. Rxb2 29. Qxb2 Ng4+) 22. .. h4! 23. a6 (23. g4) 23. .. Ng4+! 24. hxg4 Kg7! 25. axb7 Qxg4!! {ignoring white's insignificant counterplay, and Stockfish finally sees that the position is hopeless.}[/pgn] *

[zullil]

Looks like Cfish gets it wrong (for Black) with 27.Qc1 Rab8 28.Nd1? Nf5!? which of course wins, but the more forceful 28...Rxb2! is better which forces 29.Qxb2 (if 29.Nxb2 then 29...Qf6! wins quickly) followed by 29...Ng4+

I think my Cfish, and maybe my whole system, needs some downtime. Ten hour search and the third move of the PV is garbage ...

[acase]

Is there some conclusion for this position now ?

Eval from Stockfish_190726 (3 best moves) after Bg4!? with a bit of learning.

[d]r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20

Code: Select all

Stockfish_19072603_x64_modern:
...
 34/48	01:35	 834 126 572	8 764 135	-1,81	20.Qc1 Nf3+ 21.Bxf3 exf3 22.hxg4 Bxf4 23.exf4 Nxg4+ 24.Kg1 Ne5 25.f5 Nd3 26.Qb1 Qxf5 27.Kh2 Nxb2 28.Qxb2 h4 29.Qc1 Qg4 30.Bg5 hxg3+ 31.fxg3 f6 32.Bxf6 Kf7 33.Qf4 Qxf4 34.gxf4 Re3 35.Nxd5 cxd5 36.Be5 Rb3 37.Kg3 Rxb5 38.Kxf3 Rxa5 39.Rh1 Ke6 40.Rh7 Rb5 41.Rg7 Rb3+ 42.Kg4
 34/51	01:35	 834 126 572	8 764 135	-1,33	20.hxg4 hxg4 21.Rh1 Nf3+ 22.Bxf3 gxf3 23.Nh3 Kg7 24.Qf1 Rh8 25.Kg1 g5 26.Ra2 g4 27.a6 gxh3 28.Qxh3 Qxh3 29.Rxh3 Bxe3 30.Rh4 Bxd2 31.Rxd2 Rhb8 32.axb7 Rxb7 33.bxc6 Rc7 34.Ra2 a5 35.Kf1 Rxc6 36.Ke1 Kg6 37.Na4 Re6 38.Nb6 Rae8 39.Rxa5 e3 40.Ra7 exf2+ 41.Kxf2
 35/54	01:35	 834 126 572	8 764 135	-0,85	20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.Ng2 a6 23.bxc6 bxc6 24.Rb7 Qe6 25.Ne1 Ng4+ 26.hxg4 hxg4 27.Rh1 Kg7 28.Kg1 Bxh1 29.Kxh1 Bg5 30.Kg1 Rh8 31.Nd1 Qf5 32.Bc3 Rh3 33.Rb8 Rxb8 34.Qxb8 Bf6 35.Kf1 Qh5 36.Ke2 Rh1 37.Qb7 Qh3 38.Kd2 Qf1 39.Kc1 Qc4

Vincent,

Here is a PGN of the research I have done with Stockfish of all 3 of the moves that you asked about. A lot of times I had to guide Stockfish on Black's moves and some of White's moves because it didn't understand (as most chess programs don't seem to understand) the position and therefore made seemingly (to me) inferior moves. Of course I am open to ANY suggested improvements for Black or White on any of the moves I have in this PGN, and of course any suggestions that are not in this PGN.



[pgn][Event "Computer chess game"] [Site "WORKSTATION-PC"] [Date "2019.08.14"] [Round "?"] [White "Workstation"] [Black "Workstation"] [Result "*"] [BlackElo "2400"] [Time "19:25:29"] [WhiteElo "2400"] [TimeControl "1800+5"] [SetUp "1"] [FEN "r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20"] [Termination "unterminated"] [PlyCount "12"] [WhiteType "human"] [BlackType "human"] 20. Qb1 (20. Qc1 20. .. Nf3+ 21. Bxf3 Bxf3! {And not 21...exf3 like Stockfish suggest although that move wins also} 22. Ng2 (22. a6 Ng4+ 23. Kg1 Ne5 (23. .. Bxf4 24. exf4 Ne5 25. Kh2 Nd3 26. Qa1 Nxb2 27. Qxb2 b6 28. bxc6 Qxc6 29. f5 bxc5 30. Qb7 Qxb7 31. axb7 Rab8 32. dxc5 d4 33. Nd5 Rxb7 34. Nf6+ Kf8 35. Bh6+ Ke7 36. Nxe8 Kxe8 37. g4 Rb2 38. Bg7 Rd2 39. Kg3 d3 40. gxh5 gxh5 41. h4 Rc2 {Stockfish +8.74 for Black}) 24. Kh2 Bxf4 25. exf4 Nd3) 22. .. Ng4+! 23. hxg4 hxg4 24. Rh1 (24. a6 Kg7 {Stockfish +6.23 for Black}) 24. .. Kg7 25. Kg1 Rh8 26. Kf1 Bg5 27. Rg1 Rh2 28. Ne2 Rah8 29. Bb4 Qf5 {Stockfish: +4.94 for Black}) (20. hxg4 hxg4 21. Rh1 Nf3+ 22. Bxf3 gxf3 23. Nxg6 (23. Nd3 23. .. Kg7! 24. bxc6 (24. Kg1 Rh8 {Stockfish: +7.60 for Black}) 24. .. Ng4+ 25. Kg1 bxc6 26. Ne5 Nxe5 27. dxe5 Bg5 {+6.80 for black says Stockfish}) (23. Nh3 Kg7 {Stockfish: +6.25 for Black} 24. bxc6) 23. .. fxg6 24. Kg1 Bg5 25. a6 (25. Qf1? Kg7!) 25. .. b6! 26. bxc6 (26. cxb6 axb6 {Stockfish: +6.12 for Black}) 26. .. Qxc6 {Stockfish: +5.09 for Black}) 20. .. Nf3+ 21. Bxf3 Bxf3 22. Ng2 {This move is probably worse than 22.a6} (22. a6 Ng4+ 23. Kg1 Bxf4 {23...Ne5 and 23...Nf6 also work here.} 24. exf4 Nh6 {Threatining mate in 2 beginning with 25...Qxh3} 25. Kh2 bxa6 26. bxc6 Qxc6 27. Qc1 (27. Be3 Ng4+ 28. hxg4 (28. Kg1 Qe6 29. h4 Nxe3 30. fxe3 Qh3 31. Kf2 Qg2+ 32. Ke1 Qxg3+ 33. Kd2 Qxh4) 28. .. hxg4 29. Rh1 Kg7 30. Kg1 Rh8 31. Rh4 Rxh4 32. gxh4 Rh8 33. Ne2 Qf6 {Stockfish: +4.98 for Black}) 27. .. Rab8 28. Nd1 (28. Be3 Kg7) 28. .. Rxb2 29. Qxb2 Ng4+ 30. hxg4 hxg4 31. Rh1 Kg7 32. Kg1 Bxd1 33. f5 Bf3 34. Rh2 gxf5 {This continuation is probaly the best that White can do Stockfish +4.04 for Black}) 22. .. h4! 23. a6 (23. g4 Qc7+ 24. Nf4 Reb8 25. g5 Bxg5 26. a6 Bh6 27. bxc6 bxc6 28. Rb7 Qc8 29. Nfe2 g5 30. Ng1 Rxb7 31. Qxb7 Qb8+ 32. Qxb8+ Rxb8 {Stockfish: +5.04 for Black}) 23. .. Ng4+! 24. hxg4 Kg7! 25. axb7 Qxg4!! {ignoring white's insignificant counterplay, and Stockfish finally sees that the position is hopeless, Stockfish +6.25 for Black} *[/pgn]