Komodo - is it worth it.

[AndrewGrant]

Komodo - is it worth buying. That is the question.

Simple answer: Yes.

Its in the best interest of computer chess to support those who advance the field.

[Master Om]

Houdini can do that too, So can Shredder 13. I still find Zappa mexico II good in suggestions although slow.

There's positions quiet enough that Komodo 11 outperforms Houdini 6, though you do need to play with its settings (mainly Contempt, from 100 all the way to -100, but changing Reduction and Null Scale sometimes has its merits. Actually, the main problem is that if one is wrong and Komodo doesn't show anything useful all the attempts are a big waste of time, so to use it successfully one has to be able to "smell" what positions it'd be worthwhile to try it on, before trying it on, otherwise, yeah, Leela, Stockfish flavors and other top engines (shootouts to Fritz 15 with Mindbreaker settings (this is the third parenthesis layer) which still holds up) would take precedence.)

One thing that can be done with it is leading the game into positions with the least tactics, if you've noticed your opponent has higher tactical prowess this can be useful. If you're a tactical monster yourself I can see why this would be pretty useless.

>if you've noticed your opponent has higher tactical prowess this can be useful. If you're a tactical monster yourself I can see why this would be pretty useless.

Agree on that.

[Master Om]

Regarding the sig: "Always Expect the Unexpected"

Of course, if you expect it, then it isn't unexpected.
It reminds me of the phrase, "Intoleration is a state no tolerant man can tolerate."

>Of course, if you expect it, then it isn't unexpected.
It means since u can't predict the present u can't predict the future.
Its something that comes from Hinduism philosophy which says
Do your duty and don't expect the outcome as its not in your hands.

[Ovyron]

I apologize for confusing Krzysztof with someone else

[Paloma]

Hi Ovyron,
have you seen this request for a graphic?

http://www.talkchess.com/forum3/viewtop ... 64#p834764

[Nordlandia]

[d]rnbqkb1r/pppppp1p/5np1/8/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq - 0 3

TC: 90m+30s
Komodo contempt at -25
Komodo table memory: 128
Komodo core allocation: 7
Komodo hash: 16384
Komodo syzygy probe depth: 1
Leela
Kiudee bonus with Laskos's Cpuct 1.9
Minibatchsize: 512
Maxprefetch: 58
NNCacheSize: 20000000
Maxcollisionevent: 50
EGTB: Probing 6-men syzygy
Adjudication: 6-men syzygy at root
Draw adjudication
Move: 35
Move count: 5
Score: 5cp
Resign adjudication
Move count: 4
Score: 650cp
Two sided

GUI: CuteChess GUI

[pgn][Event "?"]
[Site "https://lichess.org/hiHqNupa"]
[Date "2020.03.21"]
[Round "?"]
[White "komodo-13.3-64bit-bmi2"]
[Black "lc0 v0.24.1"]
[Result "1/2-1/2"]
[WhiteElo "?"]
[BlackElo "?"]
[Variant "From Position"]
[TimeControl "5400+30"]
[ECO "?"]
[Opening "?"]
[Termination "Normal"]
[FEN "rnbqkb1r/pppppp1p/5np1/8/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq - 0 3"]
[SetUp "1"]
[Annotator "lichess.org"]

3... Bg7 4. e3 b6 5. Be2 c5 6. bxc5 bxc5 7. O-O O-O 8. Nc3 d6 9. Rb1 Nc6 10. d3 Bf5 11. Qc2 Rb8 12. Rxb8 Qxb8 13. a3 Qb6 14. Bb2 Rb8 15. Rb1 Nd7 16. Nd2 Qa5 17. Nb3 Qa6 18. g4 Be6 19. f4 h6 20. Bf3 Nf6 21. h3 h5 22. gxh5 Nxh5 23. Bxh5 gxh5 24. Kh2 Bxc3 25. Bxc3 Kf8 26. Qg2 Qa4 27. Nxc5 dxc5 28. Rxb8+ Nxb8 29. Qg7+ Ke8 30. Qh8+ Kd7 31. Qxb8 Qc2+ 32. Kg3 Qxc3 33. Qxa7+ Kc6 34. Qa8+ Kd6 35. Qb8+ Kc6 36. Qb5+ Kd6 37. Qb8+ Kd7 38. Qb5+ Kd8 39. Qb6+ Kd7 40. Qb7+ Kd8 41. Qb6+ Kc8 42. Qc6+ Kb8 43. Qb6+ Ka8 44. Qc6+ { The game is a draw. } Kb8 1/2-1/2[/pgn]

[Nordlandia]

And this lc0 v0.24.1 is under cpu or gpu.

2x 2080 Super OC.

[Nordlandia]

Would be interesting to see if leela as white is capable of holding this against Komodo.

Borderline position. Stockfish evaluation guide: Main evaluation = -207 (-0.97)

[d]5rk1/1prbbppp/p2p1n2/3P4/4P3/4BP2/PP2Q1PP/R5K1 w - - 0 1

[Nordlandia]

Lc0 as white held Komodo. While SF Dev (brainfish) was not capable to held it even with contempt at -33.

[d]5nk1/2Q2rp1/3Pb3/8/8/5P2/6K1/8 w - - 0 39

Endgame looks like lost, although i wouldn't be surprised if it turn out as draw for human players.

[pgn][Event "i7-5960X 4.5GHz / 2x 2080 Supe"]
[Site "i7-5960X 4.5GHz / 2x 2080 Supe"]
[Date "2020.03.25"]
[Round "?"]
[White "BrainFish_200322_x64_bmi2"]
[Black "lc0 v0.24.1"]
[Result "0-1"]
[SetUp "1"]
[FEN "5rk1/1prbbppp/p2p1n2/3P4/4P3/4BP2/PP2Q1PP/R5K1 w - - 0 1"]
[PlyCount "239"]
[EventDate "2020.??.??"]
[TimeControl "2700+30"]

1. Bb6 {-1.42/37 69s} Rcc8 {1.33/14 36} 2. Qd2 {-1.68/37 63s} h5 {1.41/22 56}
3. h3 {-1.32/37 32} Nh7 {1.52/17 68s} 4. Qb4 {-1.31/37 120s} Rc2 {1.63/21 68s}
5. Bd4 {-0.68/39 97s} b5 {1.74/20 71s} 6. Bc3 {-0.95/36 47} Rc8 {1.74/24 49} 7.
Qb3 {-1.29/38 51} R2xc3 {1.90/17 87s} 8. bxc3 {-1.37/38 46} Bg5 {1.94/18 67s}
9. Qa3 {-1.57/36 77s} Bf4 {1.94/17 44} 10. Qxa6 {-1.58/35 47} Rxc3 {1.95/16 63s
} 11. Qa5 {-1.58/36 47} Rc8 {1.96/18 104s} 12. Qa7 {-1.52/36 74s} Nf8 {1.95/16
0.27s} 13. h4 {-1.60/39 75s} Rc4 {2.02/15 86s} 14. Qb6 {-1.78/42 218s} Be5 {
2.16/17 158s} 15. Rd1 {-2.04/38 51} f5 {2.19/19 48} 16. exf5 {-2.84/40 116s}
Rxh4 {2.23/18 63s} 17. Qd8 {-2.63/41 162s} Ra4 {2.47/16 253s} 18. Qg5 {-1.93/
37 23} h4 {2.44/15 16} 19. Re1 {-1.93/46 35} Bf6 {2.51/17 60s} 20. Qc1 {
-1.93/46 35} Rc4 {2.56/17 86s} 21. Qa3 {-3.00/42 149s} Bd4+ {2.55/18 66s} 22.
Kh1 {-3.23/43 98s} Be5 {2.37/18 248s} 23. Rxe5 {-2.11/43 39} dxe5 {2.38/18 0.
23s} 24. Qe7 {-2.82/49 333s} Bxf5 {2.50/15 31} 25. Qxe5 {-2.92/48 40} Bd7 {
2.41/14 44} 26. d6 {-2.81/46 48} Ne6 {2.40/12 64s} 27. Qh5 {-2.54/47 124s} Rd4
{2.44/14 286s} 28. Kg1 {-1.72/51 26} Nf8 {2.63/14 26} 29. Qc5 {-2.89/43 128s}
Rd1+ {2.68/16 39} 30. Kf2 {-2.49/47 42} h3 {3.35/13 79s} 31. gxh3 {-2.49/51 35}
Rd2+ {3.29/13 46} 32. Ke1 {-2.49/52 37} Rxa2 {3.41/11 83s} 33. Qd5+ {-2.72/55
200s} Be6 {3.46/11 84s} 34. Qxb5 {-2.72/47 28} Rh2 {3.53/11 202s} 35. Kf1 {
-2.73/45 39} Rxh3 {4.72/9 75s} 36. Kg2 {-2.94/48 103s} Rh6 {5.00/8 82s} 37. Qb8
{-2.95/50 37} Rf6 {5.71/8 93s} 38. Qc7 {-3.06/50 63s} Rf7 {6.36/7 79s} 39. Qa5
{-3.75/47 220s} Rf5 {6.49/7 75s} 40. Qd2 {-3.75/45 46} Rd5 {6.81/7 72s} 41. Qb4
{-3.76/40 27} Rf5 {6.10/7 81s} 42. Qb8 {-3.75/44 62s} Bd7 {6.52/7 69s} 43. Qa8
{-3.75/41 205s} Rf6 {6.87/7 74s} 44. Qd5+ {-3.76/39 25} Be6 {6.30/8 69s} 45.
Qa8 {-3.76/39 69s} Bf5 {6.67/7 75s} 46. Qc6 {-3.76/49 82s} Bd7 {6.53/7 62s} 47.
Qc4+ {-3.76/47 21} Be6 {6.39/7 70s} 48. Qc5 {-3.76/49 107s} Rf5 {6.84/7 61s}
49. Qc7 {-3.76/49 154s} Bd7 {6.67/7 62s} 50. Kf2 {-3.76/38 11} Rf7 {6.92/7 56}
51. Ke3 {-3.77/46 28} Rf6 {6.96/7 57} 52. Ke4 {-3.77/245 27} Rf7 {6.86/7 54}
53. Ke3 {-3.86/45 34} Be6 {6.48/7 46} 54. Qa5 {-3.86/43 28} Rf5 {6.62/7 51} 55.
Qb4 {-3.86/38 18} Rf6 {7.06/7 49} 56. Qb7 {-3.86/245 19} Bd7 {7.04/7 44} 57.
Qc7 {-3.86/43 21} Kh8 {7.08/7 45} 58. Kf2 {-3.86/44 18} Kg8 {6.62/7 42} 59. Kg3
{-3.87/44 73s} Rf7 {6.11/7 41} 60. Qc2 {-3.87/38 13} Rf6 {5.94/7 40} 61. Qd3 {
-3.87/33 27} Rf5 {5.96/7 37} 62. Qe4 {-3.88/43 67s} Rf7 {5.61/7 39} 63. Kf2 {
-3.88/41 21} Rf6 {6.19/7 32} 64. Qd5+ {-3.88/44 17} Be6 {5.61/8 34} 65. Qa8 {
-3.88/45 26} Rf5 {4.94/7 40} 66. Kg1 {-3.88/43 19} Rf7 {5.07/7 35} 67. Qc6 {
-3.88/44 24} Bd7 {5.24/7 27} 68. Qe4 {-3.88/39 29} g6 {4.95/7 35} 69. Kf2 {
-3.86/40 55} Rf6 {4.68/7 34} 70. Qd5+ {-3.58/38 57} Ne6 {4.93/8 25} 71. Kg3 {
-3.43/61 53} Kh7 {4.90/8 39} 72. Qb7 {-3.75/51 61s} Rf7 {4.76/8 16} 73. Qd5 {
-3.76/50 33} Kg8 {4.42/8 48} 74. Qe4 {-3.86/42 24} Nf4 {4.50/8 31} 75. Kf2 {
-3.86/38 13} Kh7 {4.71/8 28} 76. Ke3 {-3.86/45 19} Nh5 {5.01/8 36} 77. Qc4 {
-3.86/38 15} Kg7 {5.22/8 30} 78. Qc3+ {-3.86/45 34} Kg8 {5.23/8 26} 79. Kd2 {
-3.87/40 16} Ng7 {5.39/7 36} 80. Kc1 {-3.99/43 32} Bf5 {5.90/7 32} 81. Kd1 {
-4.33/40 45} Rd7 {6.51/7 26} 82. Qe5 {-4.46/42 29} Kf7 {6.07/7 31} 83. Qh2 {
-4.46/45 53} Ke6 {6.63/7 34} 84. Qe2+ {-4.69/41 58} Kxd6 {7.60/7 22} 85. Qe3 {
-4.80/31 31} Ne6 {10.15/7 37} 86. Qa3+ {-4.80/38 19} Kc7+ {12.85/7 31} 87. Ke2
{-4.80/44 13} Rd3 {14.37/7 29} 88. Qe7+ {-4.80/40 13} Kc6 {13.29/7 27} 89. Qe8+
{-4.92/40 36} Kc5 {13.08/7 36} 90. Qe7+ {-5.04/44 29} Kc4 {11.75/7 29} 91. Kf2
{-5.56/48 65s} Nd4 {10.30/7 31} 92. Qc7+ {-5.68/39 35} Kb4 {9.46/7 31} 93. f4 {
-5.51/42 30} Ne6 {9.60/7 20} 94. Qb6+ {-5.56/39 30} Kc4 {8.08/7 33} 95. Qa6+ {
-5.68/42 30} Kc5 {8.63/7 34} 96. Qa1 {-5.68/41 12} Kb6 {9.04/7 32} 97. Qe5 {
-5.68/245 48} Kc6 {9.84/6 30} 98. Qb8 {-5.80/42 17} Rd8 {9.56/6 29} 99. Qa7 {
-5.80/46 17} Rd3 {8.68/7 30} 100. Qa6+ {-5.80/46 15} Kd7 {7.65/7 30} 101. Qb5+
{-5.80/45 19} Kc7 {8.82/7 32} 102. Qa6 {-5.80/32 73s} Rd4 {8.18/7 28} 103. Qa5+
{-5.81/41 12} Kd7 {7.34/7 32} 104. Qa7+ {-5.81/41 17} Ke8 {7.12/7 28} 105. Qa8+
{-5.81/45 31} Kf7 {7.18/7 30} 106. Qa7+ {-5.92/41 19} Kg8 {6.79/7 31} 107. Qa8+
{-6.04/245 31} Rd8 {6.77/7 27} 108. Qa4 {-6.16/44 24} Rd4 {6.70/6 33} 109. Qa8+
{-6.49/41 75s} Rd8 {5.74/7 20} 110. Qa2 {-6.84/35 40} Rc8 {6.44/7 38} 111. Qb3
{-6.96/36 30} Rf8 {6.35/6 33} 112. Kg3 {-6.84/40 11} Rd8 {5.70/7 25} 113. Kf2 {
-6.96/37 49} Rd2+ {7.67/6 29} 114. Ke1 {-7.44/38 30} Rd4 {7.11/7 29} 115. Qb8+
{-7.87/37 30} Rd8 {6.44/7 37} 116. Qb2 {-8.00/28 30} Nxf4 {7.63/6 26} 117. Qb6
{-14.03/28 30} Ne6 {7.77/6 26} 118. Qf2 {-14.97/32 30} Rd4 {9.50/6 38} 119. Qh2
{-15.28/33 30} Rb4 {10.98/5 31} 120. Qh6 {adjudication -15.94/30 30s, Black
wins by adjudication} 0-1
[/pgn]