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

Book: ∞ / 0

# move proof disproof
1 Ra8 0
2 d6 0
3 d5 0
4 Rb7 0
5 h6 0
6 Nf6 0
7 Nh6 0
8 Bb7 0
9 h5 0
10 Bh6 0
11 Kf7 0
12 Kf6 0
13 Ke6 0
14 Kd6 0
15 Bg7 0
16 Rc7 0
17 Ke8 0
18 Kd8 0
19 a5 0