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

EGTB: win in 2 half-moves

# move score
1 Ka6 win in 1 half-moves
2 Rb6 draw
3 Ka4 loss in 2 half-moves
4 Kb4 loss in 2 half-moves
5 Kb5 loss in 2 half-moves
6 Kb8 loss in 2 half-moves
7 Kc8 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Kd8 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Kab6 loss in 1 half-moves
18 Kc6 loss in 1 half-moves
19 Kcb6 loss in 1 half-moves
20 Kd6 loss in 1 half-moves