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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb4 win in 11 half-moves
3 Kb2 loss in 2 half-moves
4 Kc2 loss in 2 half-moves
5 Kc4 loss in 2 half-moves
6 Kcd2 loss in 2 half-moves
7 Kcd3 loss in 2 half-moves
8 Kcd4 loss in 2 half-moves
9 Ke2 loss in 2 half-moves
10 Ke4 loss in 2 half-moves
11 Ked2 loss in 2 half-moves
12 Ked3 loss in 2 half-moves
13 Ked4 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rb7 loss in 2 half-moves