In Version 5.4.4, "Bus Error 10" won't happen anymore when ply >= 64. It sometimes wins against Glaurung:
[pgn][Event "Computer Chess Game"]
[Site "Olivers-MacBook-2.local"]
[Date "2020.06.21"]
[Round "4"]
[White "Glaurung 2.1"]
[Black "OliThink 5.4.4"]
[Result "0-1"]
[TimeControl "40/120"]
[Annotator "10. -0.45 9... -0.16"]
1. c4 e5 2. g3 Nf6 3. Bg2 Bc5 4. Nc3 Nc6 5. a3 a6 6. e3 O-O 7. Nge2 d6 8.
h3 Ba7 9. d3 h5 {-0.16/12 1.8} 10. O-O {-0.45/15 6} Bd7 {-0.16/12 4} 11. f4
{-0.25/15 6} Re8 {-0.06/11 2.4} 12. fxe5 {-0.25/15 5} dxe5 {-0.28/12 3} 13.
Nd5 {+0.01/14 9} Nxd5 {-0.18/14 3} 14. cxd5 {+0.33/16 4} Ne7 {+0.05/14 4}
15. Nc3 {+0.60/16 5} g6 16. Qf3 {+0.39/16 4} f5 17. d6 {-0.15/15 10} Nc6
{+0.62/14 2.6} 18. dxc7 {+0.13/15 4} Qxc7 19. Nd5 {-0.25/15 8} Qd6 20. g4
{-0.39/14 7} hxg4 {+0.60/14 0.1} 21. hxg4 {-0.39/14 2.7} f4 {+0.60/12 0.2}
22. g5 {-0.49/12 2.2} Kg7 {+0.81/13 2.7} 23. Qe2 {-0.56/13 4} Rh8 24. Nf6
{-1.21/12 3} Na5 {+1.47/13 5} 25. Bd2 {-1.78/12 2.2} Nb3 {+2.19/13 3} 26.
Rae1 {-2.23/12 2.3} Nxd2 {+2.34/14 2.1} 27. Qxd2 {-2.49/12 0.9} fxe3
{+2.22/14 5} 28. Rxe3 {-2.58/13 2.3} Bf5 {+2.55/13 2.0} 29. Rf2
{-2.54/13 4} Qd4 {+2.63/14 1.8} 30. Ref3 {-2.86/14 3} Rad8 31. Kf1
{-2.70/13 2.9} Rh4 {+3.08/13 4} 32. Qc2 {-2.78/13 1.9} Bxd3+ {+3.26/15 2.8}
33. Qxd3 {-3.45/16 2.8} Qxd3+ {+3.57/16 3} 34. Rxd3 {-3.43/13 0.2} Rxd3
{+3.53/15 4} 35. Ne8+ {-3.45/16 3} Kg8 {+3.53/15 2.1} 36. Nf6+ {-3.80/16 5}
Kh8 {+3.66/17 4} 37. Rf3 {-3.92/16 1.9} Rd1+ {+5.02/18 9} 38. Ke2
{-3.11/6 0.1} Rg1 {+5.16/16 10} 39. Bf1 {-4.72/15 2.6} Rh2+ {+4.99/16 6}
40. Kd3 {-4.76/16 1.8} Rxg5 {+4.73/15 5} 41. Ne4 {-4.92/16 7} Rf5
{+5.11/17 0.2} 42. Be2 {-5.31/18 4} Rxf3+ 43. Bxf3 {-5.31/15 0.3} Rxb2
{+5.17/17 2.2} 44. Ng5 {-5.35/18 6} b5 45. Bd5 {-5.54/18 5} Bc5
{+5.40/16 2.9} 46. Nf3 {-5.86/17 5} e4+ {+5.54/16 2.7} 47. Kxe4
{-5.54/18 5} Re2+ 48. Kd3 {-5.72/17 3} Re3+ {+5.71/15 3} 49. Kc2
{-5.92/18 4} Rxa3 {+5.72/15 2.1} 50. Ng5 {-6.03/17 6} Bd4 {+5.78/15 4} 51.
Ne6 {-5.70/17 2.9} Bf6 {+6.08/16 4} 52. Nf4 {-6.21/15 4} g5 {+6.25/16 4}
53. Nd3 {-6.66/17 6} g4 54. Kd2 {-7.09/16 5} b4 {+7.72/15 4} 55. Ke2
{-7.33/15 3} b3 {+8.15/16 4} 56. Kf2 {-8.11/15 3} b2 {+8.88/16 2.9} 57.
Nxb2 {-11.74/18 2.4} g3+ {+9.81/15 1.9} 58. Kf1 {-81.47/19 2.1} Bxb2
{+10.40/14 4} 59. Be6 {-84.64/19 2.4} Rd3 {+11.66/14 4} 60. Kg2
{-90.59/19 2.3} Be5 {+12.69/14 1.9} 61. Kf1 {-99.16/19 2.2} Rd1+
{+15.60/13 4} 62. Ke2 {-1000.14/17 0.8} g2 {+15.60/13 2.6} 63. Kxd1
{-1000.13/15 0.2} g1=Q+ {+15.60/12 4} 64. Ke2 {-1000.12/15 0.6} Qh2+
{+15.60/11 4} 65. Kd3 {-1000.11/14 0.2} Qh7+ {+15.70/11 3} 66. Ke2
{-1000.10/13 0.2} Qe4+ {+1000.08/11 5} 67. Kd2 {-1000.09/11 0.2} Bd6
{+1000.07/11 5} 68. Kc3 {-1000.07/11 0.2} Bb4+ {+1000.06/11 4} 69. Kb3
{-1000.05/11 0.2} Qd4 {+1000.05/10 0.2} 70. Ka2 {-1000.04/6 0.1} Qd2+
{+1000.04/10 0.1} 71. Kb3 {-1000.03/6 0.1} Qc3+ {+1000.03/11 0.5} 72. Ka2
{-1000.02/6 0.1} Qc2+ {+1000.02/11 0.3} 73. Ka1 {-1000.01/6 0.1} Bc3#
{+1000.01/1 0.1}
{Xboard adjudication: Checkmate} 0-1
[/pgn]
Still there are a couple of bugs, e.g. in another game vs Glaurung OliThink played, which has been lost after 14 ...Kg8???
[d]r4rk1/pp1nb1p1/1qp1pn2/4p2p/4P3/P1N3PP/1PP1QPB1/R1BR2K1 b - - 1 14
The funny part is, that it won't play the move when analyzing the position. This is the eval:
Code: Select all
./olithink544
r4rk1/pp1nb1p1/1qp1pn2/4p2p/4P3/P1N3PP/1PP1QPB1/R1BR2K1 b - - 1 14
1 54 0 94 a7a5
2 14 0 441 a7a5 g1h1
3 26 0 2464 a7a5 g1h1 a5a4
4 15 0 4723 a7a5 g1h1 a5a4 h3h4
5 23 0 10604 a7a5 g1h1 g8h8 h3h4 a5a4
6 -17 2 65556 a7a5 a1b1 e7c5 c1e3 b6c7 h3h4
7 -13 4 123348 a7a5 a1b1 e7c5 c1e3 c5e3 f2e3 b6c7
8 -22 10 298025 a7a5 a1b1 e7c5 c1e3 c5d4 g1h1 a5a4 h3h4
9 -17 25 778187 a7a5 g1h1 a5a4 e2c4 b6f2 d1d7 f2e1 h1h2 f6d7 c4e6 f8f7
10 -39 117 4144161 g8f7 a1b1 e7c5 c3a4 b6b5 e2b5 c6b5 a4c5 d7c5 f2f3
11 -30 172 6376449 g8f7 b2b4 a7a5 c1e3 b6a6 e2a6 a8a6 g2f1 b7b5 a1b1 a6a8
12 -58 803 31390383 b6a6 e2a6 b7a6 c1e3 f8b8 b2b4 c6c5 c3e2 c5b4 a3b4 e7b4 a1a6
13 -64 1227 48910980 b6a6 e2a6 b7a6 c1e3 a6a5 f2f4 a8b8 b2b3 c6c5 g2f3 g7g6 f3e2 g8h8
14 -62 2689 111038881 e7c5 c3a4 b6b5 e2b5 c6b5 a4c5 d7c5 f2f3 c5a4 g2f1 a7a6 c2c4 h5h4 g3h4
15 -57 5065 212926260 b6c7 e2c4 g8f7 c1e3 f8c8 f2f4 b7b5 c4a2 e7c5 e3c5 d7c5 d1f1 f7g8 b2b4 c7d6