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

Book: ∞ / 0

# move proof disproof
1 b4 0
2 g6 0
3 a5 0
4 g4 0
5 Rac8 0
6 Rgc8 0
7 Rgb8 0
8 Rab8 0
9 Rh8 0
10 a6 0
11 Raf8 0
12 Rgf8 0
13 Rge8 0
14 Rae8 0
15 Rad8 0
16 Rgd8 0