Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 a3 win in 1 half-moves
2 Kf5 loss in 2 half-moves
3 Kf6 loss in 2 half-moves
4 Kg4 loss in 2 half-moves
5 Kg6 loss in 2 half-moves
6 Kh4 loss in 2 half-moves
7 Kh6 loss in 2 half-moves
8 Rh1 loss in 2 half-moves
9 Rh3 loss in 2 half-moves
10 Rh4 loss in 2 half-moves
11 Rh6 loss in 2 half-moves
12 Rh7 loss in 2 half-moves
13 Rh8 loss in 2 half-moves
14 Kf4 loss in 1 half-moves
15 Rh2 loss in 1 half-moves