Open Sources
| Fruit 2.1 The strongest among the open sources. Author: Fabien Letouzey. | Toga II An interesting Fruit clone. Author: Thomas Gaksch. | ||
| Crafty 20.9 The father of all open sources. Author: 2 times worldchampion Bob Hyatt. | TSCP Starter kit for entrant chess programmers. Author: Tom Kerrigan. | ||
| Gerbil Another starter kit for candidate chess programmers. Author: Bruce Moreland. | Glaurung Very strong. Author: Tord Romstad. | ||
| Scorpio 1.91 Very strong. Author: Daniel Shawul. | Delfi 5.0 Good. Author: Fabio Cavicchio. | ||
| Arasan 9.5 Sophisticated chess engine. Author: John Dart. | GNUchess 3.1 The very first open source, the year is 1991. Authors: Stuart Cracraft and John Stanback. | ||
| Phalanx Author: Dusan Dobes. | Sjeng Author: Gian-Carlo Pascutto. |