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

Book: ∞ / 0

# move proof disproof
1 Qh8 0
2 c5 0
3 e5 0
4 e6 0
5 f6 0
6 f5 0
7 Bb7 0
8 Qe8 0
9 Qf8 0
10 Qb6 0
11 Kd6 0
12 Ba6 0
13 a6 0
14 Qg8 0
15 Na6 0
16 Qc7 0
17 a5 0
18 Qa5 0
19 Ke8 0
20 Kc7 0
21 Ke6 0