I ran a few games between Mediocre with transposition tables and Mediocre v0.12b, the new Mediocre won pretty much every game except the ones it forfeited due crashing or playing illegal moves. :)
It searches about a ply or two deeper in every given middle game position, and much deeper in end games.
There are still some big bugs to be sorted out, but they are atleast getting fewer.
The repetition draw detection in search tree is a hassle and I will wait with it a bit, atleast until after I have written the new evaluation. However the draw detection with positions from the game history works without problem, with new zobrist keys instead of the slow FEN-approach I had before.