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

Book: ∞ / 0

# move proof disproof
1 Kc6 0
2 c4 0
3 f5 0
4 Kd8 0
5 Ke8 0
6 Kd6 0
7 h6 0
8 Rb7 0
9 Kc7 0
10 h5 0
11 g5 0
12 Ba6 0
13 e5 0
14 g6 0
15 Rc7 0
16 Ke6 0
17 e6 0
18 Ra8 0
19 Nh6 0
20 Ra6 0
21 Bb7 0