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: 28 / 726

# move proof disproof
1 g4 202 28
2 b5 450 29
3 a6 40 29
4 Na6 17 29
5 h5 1 29
6 Bg7 1 31
7 Bh6 1 31
8 Nh6 1 31
9 Nf6 1 31
10 Nc6 1 31
11 f5 1 31
12 e5 1 31
13 d5 1 31
14 c5 1 31
15 a5 1 31
16 h6 1 31
17 f6 1 31
18 e6 1 31
19 d6 1 31
20 c6 1 31
21 b6 1 31