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

Book: 312 / 905

# move proof disproof
1 g6 140 312
2 g5 112 312
3 b6 99 312
4 h6 79 312
5 c6 61 312
6 Nh6 58 312
7 a6 51 312
8 b5 40 312
9 Nf6 12 312
10 e6 5 312
11 e5 3 312
12 c5 55 313
13 f5 36 313
14 a5 25 313
15 Na6 22 314
16 d5 2 314
17 Nc6 1 314
18 h5 21 319
19 f6 60 326
20 d6 23 334