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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Ra8 win in 3 half-moves
4 Kf7 draw
5 Kf8 draw
6 Kgg8 draw
7 Kgh7 draw
8 Khg8 draw
9 Khh7 draw
10 Ra5 draw
11 Rb4 draw
12 Rc4 draw
13 Rd4 draw
14 Re4 draw
15 Kf6 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Kh6 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rh4 loss in 2 half-moves