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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Ke8 draw
3 Kg8 draw
4 Ra5 draw
5 Rb7 draw
6 Rb8 draw
7 Kb4 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb6 loss in 2 half-moves