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