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

Book: 26 / 369

# move proof disproof
1 f5 3 26
2 Ba6 3 26
3 a6 3 28
4 Na6 3 28
5 c5 124 29
6 Ng4 121 29
7 Nf5 30 29
8 Ng8 27 29
9 Bb7 7 29
10 Ke8 5 29
11 Ke6 5 29
12 Nc6 4 29
13 g6 3 29
14 a5 3 29
15 g5 3 29
16 Nf7 3 29
17 Rg8 3 29
18 Qe8 3 29
19 Kc6 3 29
20 Kd6 6 30
21 c6 3 30
22 e6 2 46
23 e5 2 47