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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kd4 win in 5 half-moves
3 Ka7 draw
4 Kb8 draw
5 Kd2 draw
6 Kd3 draw
7 Ke2 draw
8 Ke4 draw
9 Kf4 draw
10 Ra3 draw
11 Rb4 draw
12 Rb5 draw
13 Rb6 draw
14 Rb7 draw
15 Rc3 draw
16 Rd3 draw
17 Kb7 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves