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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 Ng4 0
3 Nb6 0
4 a6 0
5 a5 0
6 Nf6 0
7 g4 0
8 e6 0
9 Nf5 0
10 Ne5 0
11 f6 0
12 Ba6 0
13 e5 0
14 Nb8 0
15 Ng8 0
16 Kd8 0
17 f5 0
18 Bb7 0
19 Bg7 0