8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
Click on the third or sixth rank to set the en passant target square.

Book: 3 / 1846

# move proof disproof
1 b5 1438 3
2 g4 33 3
3 f5 355 4
4 a6 3 26
5 Na6 1 26
6 h5 1 27
7 e5 1 29
8 d5 1 29
9 Bg7 1 30
10 Bh6 1 30
11 Nh6 1 30
12 Nf6 1 30
13 Nc6 1 30
14 c5 1 30
15 a5 1 30
16 h6 1 30
17 f6 1 30
18 e6 1 30
19 d6 1 30
20 c6 1 30
21 b6 1 30