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 Ka6 draw
3 Kb2 draw
4 Kb3 draw
5 Kb4 draw
6 Kb6 draw
7 Kb7 draw
8 Kb8 draw
9 Kc2 draw
10 Kc4 draw
11 Kd2 draw
12 Kd3 draw
13 Rc8 draw
14 Rd8 draw
15 Rh8 draw
16 Kd4 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves