Click on the third or sixth rank to set the en passant target square.

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Bg7 0
3 f6 0
4 Nd6 0
5 Bh6 0
6 Na7 0
7 Nb6 0
8 e6 0
9 e5 0
10 f5 0