in CuteChess :

this position was reached by using starting position rnbq1b1r/pppp1kpp/5n2/4p3/3PP3/8/PPP2PPP/RNBQK1NR b KQ - 0 4
i also tried v1.10 and this version seems to run fine in CuteChess, no illegal move yet .. but how to be sure it differs from 1.9 ?

[ i'm using Xubuntu 22.04 ]