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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Ke8 draw
5 Kf7 draw
6 Kf8 draw
7 Kg7 draw
8 Kg8 draw
9 Kh6 draw
10 Kh8 draw
11 Ra5 draw
12 Ra6 draw
13 Ra7 draw
14 Rb1 draw
15 Rf1 draw
16 Rg1 draw
17 Rh1 draw
18 Kd6 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Kf6 loss in 2 half-moves
21 Kg6 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Ra4 loss in 2 half-moves
25 Rc1 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Re1 loss in 2 half-moves