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: 4 / 964

# move proof disproof
1 b5 678 4
2 g4 172 10
3 c5 94 10
4 a6 3 27
5 Na6 1 27
6 h5 1 28
7 a5 1 30
8 Bg7 1 31
9 Bh6 1 31
10 Nh6 1 31
11 Nf6 1 31
12 Nc6 1 31
13 f5 1 31
14 e5 1 31
15 d5 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