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

Book: ∞ / 0

# move proof disproof
1 Qc7 0
2 Qh8 0
3 Kc7 0
4 Ke8 0
5 Kc6 0
6 Na6 0
7 Qg8 0
8 Nc6 0
9 Ke6 0
10 a5 0
11 Qa5 0
12 a6 0
13 e5 0
14 f6 0
15 Qe8 0
16 Qf8 0
17 Qb6 0
18 e6 0
19 f5 0
20 Kd6 0
21 Bb7 0
22 Ba6 0