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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Nd5 0
3 d6 0
4 Rg8 0
5 Rb8 0
6 g5 0
7 Ng6 0
8 h6 0
9 Ba6 0
10 Nf5 0
11 g6 0
12 Kd8 0
13 Kf8 0
14 Kf7 0
15 e5 0
16 Rf8 0
17 Ng8 0
18 Nc6 0
19 d5 0
20 h5 0
21 Bb7 0