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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Nc6 0
3 Kd6 0
4 Kd8 0
5 Re8 0
6 Na6 0
7 a5 0
8 Ke7 0
9 h5 0
10 Kc6 0
11 Kc7 0
12 Ke8 0
13 Rg8 0
14 Rd8 0
15 h6 0
16 g6 0
17 f6 0
18 f5 0
19 Bb7 0
20 Rf8 0
21 Ke6 0
22 Ba6 0
23 g5 0