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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Rb5 draw
3 Rb6 draw
4 Rb7 draw
5 Kb1 loss in 2 half-moves
6 Kc1 loss in 2 half-moves
7 Kc3 loss in 2 half-moves
8 Kcd2 loss in 2 half-moves
9 Kcd3 loss in 2 half-moves
10 Kd1 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Ked2 loss in 2 half-moves
15 Ked3 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Kf3 loss in 2 half-moves
18 Kf4 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb1 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