| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Jonny vs IsiChess |
| 1-0 | 78 |
2004 |
World Computer Chess Championship | D46 Queen's Gambit Declined Semi-Slav |
| 27. IsiChess vs Fritz |
| ½-½ | 103 |
2004 |
World Computer Chess Championship | E32 Nimzo-Indian, Classical |
| 28. IsiChess vs Praetorian |
 | 1-0 | 32 |
2004 |
4th CSVN Computer | B05 Alekhine's Defense, Modern |
| 29. IsiChess vs Deep Junior |
| ½-½ | 122 |
2004 |
World Computer Chess Championship | D43 Queen's Gambit Declined Semi-Slav |
| 30. Crafty vs IsiChess |
| 1-0 | 70 |
2004 |
World Computer Chess Championship | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 31. Crazy Bishop vs IsiChess |
| 0-1 | 66 |
2004 |
World Computer Chess Championship | E12 Queen's Indian |
| 32. IsiChess vs Shredder |
| 0-1 | 64 |
2005 |
WCCC | D43 Queen's Gambit Declined Semi-Slav |
| 33. IsiChess vs Jonny |
| 0-1 | 44 |
2005 |
IPCCC 15 Paderborn | E12 Queen's Indian |
| 34. Fruit vs IsiChess |
| ½-½ | 19 |
2005 |
WCCC | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 35. SOS vs IsiChess |
| 1-0 | 59 |
2005 |
IPCCC | B23 Sicilian, Closed |
| 36. Zappa vs IsiChess |
| 1-0 | 50 |
2005 |
WCCC | E12 Queen's Indian |
| 37. IsiChess vs Ikarus |
| 0-1 | 78 |
2005 |
IPCCC | D24 Queen's Gambit Accepted |
| 38. Fruit vs IsiChess |
| ½-½ | 117 |
2005 |
IPCCC | A15 English |
| 39. The King vs IsiChess |
| ½-½ | 75 |
2006 |
26th Dutch CC | E15 Queen's Indian |
| 40. IsiChess vs Usurpator |
| 1-0 | 31 |
2006 |
6th International CSVN Tournament | C03 French, Tarrasch |
| 41. IsiChess vs Ikarus |
| ½-½ | 52 |
2006 |
Paderborn Computer Championship | D18 Queen's Gambit Declined Slav, Dutch |
| 42. Shredder vs IsiChess |
| 1-0 | 48 |
2006 |
WCCC 2006 | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 43. IsiChess vs Zappa |
| ½-½ | 34 |
2006 |
WCCC 2006 | B76 Sicilian, Dragon, Yugoslav Attack |
| 44. Hermann vs IsiChess |
| 0-1 | 70 |
2006 |
26th Dutch CC | C21 Center Game |
| 45. IsiChess vs Rybka |
| 0-1 | 37 |
2006 |
6th International CSVN Tournament | A57 Benko Gambit |
| 46. Ikarus vs IsiChess |
| 1-0 | 65 |
2006 |
WCCC 2006 | A45 Queen's Pawn Game |
| 47. IsiChess vs Chiron |
| 0-1 | 50 |
2006 |
Paderborn Computer Championship | A62 Benoni, Fianchetto Variation |
| 48. IsiChess vs Spike |
| 1-0 | 46 |
2006 |
Paderborn Computer Championship | E15 Queen's Indian |
| 49. Diep vs IsiChess |
| 0-1 | 0 |
2006 |
6th International CSVN Tournament | A40 Queen's Pawn Game |
| 50. PARSOS vs IsiChess |
| 0-1 | 49 |
2006 |
WCCC 2006 | E12 Queen's Indian |
