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 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc8 draw
6 Kd7 draw
7 Kd8 draw
8 Ke7 draw
9 Ke8 draw
10 Kf8 draw
11 Kg7 draw
12 Kg8 draw
13 Ra5 draw
14 Ra6 draw
15 Ra7 draw
16 Rb1 draw
17 Rc1 draw
18 Rd1 draw
19 Rh1 draw
20 Kc6 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Ke6 loss in 2 half-moves
23 Kf6 loss in 2 half-moves
24 Kg6 loss in 2 half-moves
25 Ra2 loss in 2 half-moves
26 Ra3 loss in 2 half-moves
27 Ra4 loss in 2 half-moves
28 Re1 loss in 2 half-moves
29 Rf1 loss in 2 half-moves
30 Rg1 loss in 2 half-moves