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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 e4 0
3 Rg8 0
4 Re8 0
5 Ke8 0
6 Ke7 0
7 c5 0
8 Kc6 0
9 Nc6 0
10 Rf8 0
11 Kd8 0
12 Kd6 0
13 Nf8 0
14 Ke6 0
15 Ng5 0
16 Nf6 0
17 Bb7 0
18 a5 0
19 Na6 0
20 a6 0
21 c6 0
22 Ba6 0