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

EGTB: win in 4 half-moves

# move score
1 Kg7 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Kg8 win in 5 half-moves
4 Kd8 draw
5 Ke6 draw
6 Kef8 draw
7 Kf6 draw
8 Kfe7 draw
9 Kff8 draw
10 Ra8 draw
11 Rb5 draw
12 Rb7 draw
13 Rc8 draw
14 Kd7 loss in 2 half-moves
15 Kee7 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb6 loss in 2 half-moves