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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 Bh6 0
3 Kd6 0
4 Bg7 0
5 Kb6 0
6 a6 0
7 Kd7 0
8 Kd8 0
9 Kc8 0
10 Kb8 0
11 Kb7 0
12 Nh6 0
13 g5 0
14 c5 0
15 a5 0
16 Ra8 0
17 Rc8 0
18 Rd8 0
19 e6 0
20 Nf6 0