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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Rhf8 0
3 Rag8 0
4 Nf8 0
5 Raf8 0
6 Rhc8 0
7 c6 0
8 c5 0
9 Rhd8 0
10 Rhe8 0
11 Rhg8 0
12 a6 0
13 a5 0
14 Rab8 0
15 Rhb8 0
16 g6 0
17 Rac8 0
18 Ng5 0
19 Rad8 0
20 Rae8 0
21 g5 0