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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Re8 0
3 Ra7 0
4 Ke8 0
5 Kc7 0
6 Nf8 0
7 Rf8 0
8 Nc6 0
9 Kd8 0
10 Nf6 0
11 Ng5 0
12 Rg8 0
13 Ke6 0
14 Kd6 0
15 Kc6 0
16 e6 0
17 e5 0
18 Bb7 0