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

EGTB: win in 10 half-moves

# move score
1 Rb8 win in 9 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kcd7 draw
8 Kcd8 draw
9 Kd6 draw
10 Ked8 draw
11 Kf8 draw
12 Ra3 draw
13 Ra7 draw
14 Rc8 draw
15 Rd8 draw
16 Ke7 loss in 2 half-moves
17 Ked7 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Ra5 loss in 2 half-moves
23 Ra6 loss in 2 half-moves