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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb4 win in 1 half-moves
3 Kb5 draw
4 Kc5 draw
5 Kd5 draw
6 Rb5 draw
7 Kb1 loss in 2 half-moves
8 Kb2 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc2 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd1 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves