thanks for the reply, i found the solution yesterday
now I'm triyng to implement move generation for files, but I'm using all 8 bits for the occupancy state and I can't find the magic multipliers that can trasform an 8 bit file in a rank, can anyone help me?
thanks

I'm trying to develop my own chess engine in C#. Recently I switched to bitboards and I'm rewriting my move generator: I implemented pawn, knight and king move generation, but now I'm stuck with sliding piece move generation (queen, rook and bishop)... I would like to use an occupancy look-up ...