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 5 half-moves
3 Ra8 win in 11 half-moves
4 Ka6 draw
5 Ka7 draw
6 Ka8 draw
7 Kb6 draw
8 Kbb8 draw
9 Kbc7 draw
10 Kc6 draw
11 Kcb8 draw
12 Kcc7 draw
13 Kd7 draw
14 Kd8 draw
15 Ra5 draw
16 Rg1 draw
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves