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

Book: ∞ / 0

# move proof disproof
1 Rc7 0
2 c5 0
3 a5 0
4 Kd6 0
5 f5 0
6 Kd8 0
7 Rb7 0
8 Ke8 0
9 Kc7 0
10 e5 0
11 h6 0
12 h5 0
13 g4 0
14 Ra8 0
15 Re8 0
16 f6 0
17 Ke6 0
18 e6 0
19 Bb7 0
20 Rf8 0
21 Rg8 0
22 Rd8 0