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

EGTB: win in 8 half-moves

# move score
1 Kb7 win in 7 half-moves
2 Kc8 win in 9 half-moves
3 Rb7 win in 11 half-moves
4 K5b6 draw
5 K5c6 draw
6 K5d6 draw
7 K7b6 draw
8 K7c6 draw
9 K7d6 draw
10 Kb8 draw
11 Kd8 draw
12 Ra5 draw
13 Rb6 draw
14 Kb4 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd7 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb8 loss in 2 half-moves