Rev2004
Program for the game Othello (other name Reversi). It is very difficult for people to beat this program, with better level I find it impossible. It is possible to set various levels, switch between game and analysis mode, set up position. The program uses similar evaluation function and opening book like WZebra. I tried to do a quick endgame solver, program has been tested on the FFO Endgame Test Suite. Used hardware: Pentium III 1.4MHz, 255 MB RAM. Hash tables 128MB.
| Rev2004 | ScrZebra | Ratio | ||||
| Position | Empties | Result | Time | Nodes | Time | |
| 40 | 20 | 38 | 4.13 s | 16.43 Mn | 3.3s | 1.25 |
| 41 | 22 | 0 | 6.12 s | 20.58 Mn | 4.4s | 1.39 |
| 42 | 22 | 6 | 6.04 s | 28.17 Mn | 5.1s | 1.18 |
| 43 | 23 | -12 | 7.31 s | 24.64 Mn | 5.2s | 1.41 |
| 44 | 23 | -14 | 5.96 s | 14.74 Mn | 5.0s | 1.19 |
| 45 | 24 | 6 | 84.22 s | 361.77 M | 81.2s | 1.04 |
| 46 | 24 | -8 | 17.04 s | 51.86 Mn | 14.0s | 1.22 |
| 47 | 25 | 4 | 6.16 s | 16.85 Mn | 5.7s | 1.08 |
| 48 | 25 | 28 | 86.38 s | 218.28 Mn | 74.1s | 1.17 |
| 49 | 26 | 16 | 113.69 s | 475.73 Mn | 65.3s | 1.74 |
| 50 | 26 | 10 | 373.11 s | 1.28 Gn | 399.9s | 0.93 |
| 51 | 27 | 6 | 115.98 s | 338.80 Mn | 68.1s | 1.70 |
| 52 | 27 | 0 | 102.12 s | 277.37 | 72.1s | 1.42 |
| 53 | 28 | -2 | 844.22 s | 2.88 Gn | 567.7s | 1.49 |
| 54 | 28 | -2 | 1089.77 s | 4.05 Gn | 941.6s | 1.16 |
| 55 | 29 | 0 | 5905.92 s | 17.93 Gn | 3242.2s | 1.82 |
| 56 | 29 | 2 | 479.99 s | 1.10 Gn | 349.8s | 1.37 |
| 57 | 30 | -10 | 843.38 s | 2.26 Gn | 539.8s | 1.56 |
| 58 | 30 | 4 | 816.89 s | 1.71 Gn | 594.1s | 1.38 |
| 59 | 34 | 64 | 1.46 s | 93.28 kn | 1.1s | 1.33 |
| Total | 10940 s | 33053 Mn | 7050.9s | 1.55 | ||
Screenshot of the program (solved endgame with 25 empties)