Checkmate not correctly detected

[Silex]

Hello,

With the following moves:

e2 e4
f1 c4
d1 f3
f3 f7

The black king "eats" the black queen instead of being checkmated.

This is also shown with simply d1 f7 as your first (invalid) move.

[bolknote]

Thank you for your report but this project is abandoned, sry :)