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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Rd8 0
3 Nd5 0
4 Nf5 0
5 Ke6 0
6 Ng6 0
7 Kd6 0
8 Rb8 0
9 Ke8 0
10 Kd8 0
11 Kc7 0
12 Kc6 0
13 Ra7 0
14 Nc6 0
15 h5 0
16 Bb7 0
17 Rf8 0
18 Ng8 0
19 h6 0
20 Rg8 0