Hi! Look in the download section. This version requires Framework 4 to work. The changes are : move ordering in Quiescence, cutting in Quiescence in some cases, and cleaning in the procedures (especially no array definition in the move generators, now the arrays are passed byval, as it is possible to change a value inside the subroutine). There is also something modified in the King's security routine; a bonus when the pawn chains are destroyed. The Nodes per seconds are thus largely increased! The programme made 2172 elo at BT2450 and 2319 at CC2175. Is it stronger than before? I don't know, please test it and let me know if you find bugs ;)