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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 Re8 0
3 Nf5 0
4 Ng4 0
5 a5 0
6 Bg7 0
7 Ke8 0
8 f6 0
9 f5 0
10 Kd6 0
11 Rb8 0
12 Ra8 0
13 Ng8 0
14 Rd8 0
15 c5 0
16 c6 0
17 e6 0
18 Kc6 0
19 Kd8 0
20 a6 0