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: 29 / 516

# move proof disproof
1 g4 367 29
2 b5 80 29
3 h5 1 29
4 a6 44 30
5 d6 1 30
6 e6 1 30
7 d5 1 30
8 e5 1 30
9 Bh6 1 31
10 Na6 1 43
11 c6 3 50
12 f6 3 50
13 h6 3 50
14 b6 2 50
15 f5 1 53
16 Nf6 1 53
17 Nh6 1 53
18 a5 1 55
19 c5 1 55
20 Nc6 1 55
21 Bg7 1 56