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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Ka6 win in 3 half-moves
3 Ka7 win in 3 half-moves
4 Ka8 win in 3 half-moves
5 Kb8 win in 3 half-moves
6 Kbb6 win in 3 half-moves
7 Kbc6 win in 3 half-moves
8 Kc7 win in 3 half-moves
9 Kc8 win in 3 half-moves
10 Ra5 win in 3 half-moves
11 Rb6 win in 3 half-moves
12 Kb4 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kcb6 loss in 2 half-moves
15 Kcc6 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb4 loss in 2 half-moves