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

Book: ∞ / 0

# move proof disproof
1 e6 0
2 Ke6 0
3 c5 0
4 f5 0
5 Na6 0
6 a5 0
7 Nh6 0
8 f6 0
9 e5 0
10 Ba6 0
11 Nf6 0
12 a6 0
13 Bb7 0
14 Kd6 0
15 Ke8 0
16 Kd8 0
17 Kc7 0