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

Book: ∞ / 0

# move proof disproof
1 Kb5 0
2 h5 0
3 Kd5 0
4 Kd7 0
5 Kd6 0
6 a6 0
7 Rd8 0
8 Ra8 0
9 Nf6 0
10 h6 0
11 Kb6 0
12 e4 0
13 Kc5 0
14 a5 0
15 g6 0
16 Re8 0
17 e6 0
18 Nh6 0
19 Rb8 0
20 Kb7 0