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

Book: ∞ / 0

# move proof disproof
1 Ra7 0
2 Rg8 0
3 Re8 0
4 Rd8 0
5 Kf6 0
6 Kf7 0
7 Rb8 0
8 Rf8 0
9 Bb7 0
10 e4 0
11 Kh6 0
12 h5 0
13 Kh5 0
14 Kf5 0
15 d5 0
16 d6 0
17 a5 0
18 h6 0
19 Kg5 0