Currently all 4 pieces pawn-less egtb are done but few must be optimize.
Optimize a egtb means , check if all solutions are the fastest way to win.
A non-optimize egtb could give you example: White win in 26 moves but once optimize the same position can give you: White win in 18 moves.
When all 4 pieces pawn-less will be optimize , I’ll start to generate egtb with pawn.
Update: all pawnless 4 pieces EGTB have been optimize, so now I’m generating the egtb with pawn…