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

Book: ∞ / 0

# move proof disproof
1 Na6 0
2 Kd6 0
3 Bg7 0
4 a6 0
5 Nf6 0
6 f6 0
7 c5 0
8 Ke8 0
9 Kd8 0
10 Kc8 0
11 Kc7 0
12 Ke6 0
13 g4 0
14 f5 0
15 e5 0
16 e6 0
17 Bh6 0
18 Nh6 0