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

Book: ∞ / 0

# move proof disproof
1 Nf5 0
2 Ng6 0
3 Ke8 0
4 Ba6 0
5 Na6 0
6 Bb7 0
7 Kd6 0
8 Nd5 0
9 Ng8 0
10 Kd8 0
11 Kc7 0
12 c5 0
13 a5 0
14 a6 0
15 Ke6 0