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

Book: ∞ / 0

# move proof disproof
1 Kd6 0
2 a5 0
3 Kc6 0
4 Kc8 0
5 Kd8 0
6 Rb8 0
7 Ng4 0
8 c5 0
9 Ng8 0
10 a6 0
11 Bg7 0
12 Ra8 0
13 c6 0
14 Rd8 0
15 Nf5 0
16 Ke6 0
17 Rc8 0
18 f6 0
19 f5 0
20 e6 0