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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 K6d6 win in 3 half-moves
3 K6d7 win in 3 half-moves
4 K7d6 win in 3 half-moves
5 K7d7 win in 3 half-moves
6 Kd8 win in 3 half-moves
7 Rb6 win in 3 half-moves
8 K6b6 draw
9 Ra7 draw
10 K7b6 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb8 loss in 2 half-moves