|Eugenio Castillo Jimenez||engine programmer|
|Schach, 1999, Paderborn||30||4.0||7|
|Eugen 7.2||Schach, 1997, Paris||34||6.0||11|
|Schach (Blitz), 1997, Paris||22||4.0|
|Eugen 7||Schach, 1996, Jakarta||27||6.0||11|
- Description given in 1999:
Eugen born in 1994 like a personal free time proyect, initially writen in Pascal and assembler, in 1995 it was changed to C language. Eugen is partially inspirated in freeware programs like TChess, Gnu, and Crafty.
- Description given in 1997:
Eugen 7.2 is a program based on a hard selective search extensions algorithm, he don´t makes conventional alpha beta pruning and he (in spanish it's he) uses a special null turn moves in quiescence search. The program consist of about 40.000 C and assembler code lines. Node speed on a Pentium 133Mhz is approximately 12.000 to 30.000 nodes per second. Chess programing is my hobby-job for about last 8 years. Currently Spanish CCC.