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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Ra1 draw
3 Ra2 draw
4 Ra3 draw
5 K6a7 loss in 2 half-moves
6 K6b7 loss in 2 half-moves
7 K6c7 loss in 2 half-moves
8 K8a7 loss in 2 half-moves
9 K8b7 loss in 2 half-moves
10 K8c7 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kc8 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Ra8 loss in 2 half-moves