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: 61 / 175

# move proof disproof
1 e6 1 61
2 d5 1 61
3 d6 1 61
4 Nc6 1 61
5 c5 1 61
6 a5 1 61
7 h6 1 61
8 b6 1 61
9 g4 1 62
10 f5 1 62
11 Bg7 4 70
12 b5 111 72
13 a6 5 76
14 Na6 2 76
15 c6 1 82
16 Bh6 1 83
17 Nf6 1 84
18 Nh6 21 514
19 f6 19 736
20 e5 0 ∞