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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 Re7 0
3 Ra7 0
4 Rh8 0
5 Rf8 0
6 Rd8 0
7 Nf8 0
8 f6 0
9 Re6 0
10 f5 0
11 Nf6 0
12 Ng5 0
13 Kc7 0
14 Kc6 0
15 Kd6 0
16 Nc6 0
17 Ke7 0
18 Kd8 0
19 Rg8 0
20 Bb7 0