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

Book: ∞ / 0

# move proof disproof
1 Ra7 0
2 Rf8 0
3 Re8 0
4 Rd8 0
5 e6 0
6 e4 0
7 Nc6 0
8 Rg8 0
9 Nf8 0
10 Ke6 0
11 Kd8 0
12 Ke8 0
13 Kd6 0
14 Nf6 0
15 Ng5 0
16 Bb7 0
17 Kc6 0
18 Kc7 0