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

Book: ∞ / 0

# move proof disproof
1 Ra3 0
2 e5 0
3 Ra2 0
4 Ra4 0
5 h6 0
6 Bb7 0
7 h5 0
8 Na6 0
9 Nc6 0
10 Kc6 0
11 Kd6 0
12 Kd8 0
13 Ke8 0
14 Ra1 0
15 c5 0
16 Rb7 0
17 Ke6 0
18 Ra8 0
19 Ra6 0
20 Ra5 0
21 e6 0
22 c6 0
23 Ba6 0