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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Rc8 win in 1 half-moves
4 Kc5 draw
5 Kc6 draw
6 Kc7 draw
7 Kdd7 draw
8 Kde7 draw
9 Ke5 draw
10 Kd5 loss in 1 half-moves
11 Ke6 loss in 1 half-moves
12 Ked7 loss in 1 half-moves
13 Kee7 loss in 1 half-moves
14 Kf7 loss in 1 half-moves
15 Kf8 loss in 1 half-moves
16 Rd7 loss in 1 half-moves