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

Book: 100 / 181

# move proof disproof
1 e5 1 100
2 Bg7 1 100
3 h5 8 101
4 d6 1 101
5 c5 19 102
6 e6 1 102
7 Nc6 22 106
8 f5 1 106
9 g4 17 110
10 Nf6 2 111
11 Bh6 16 113
12 Bb7 1 115
13 d5 1 116
14 Nh6 17 120
15 h6 16 120
16 c6 19 121
17 f6 17 121
18 a5 21 125