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

EGTB: win in 4 half-moves

# move score
1 Kd7 win in 3 half-moves
2 Kd8 win in 3 half-moves
3 Kh7 win in 3 half-moves
4 Kh8 win in 3 half-moves
5 Rd8 win in 3 half-moves
6 Kef7 draw
7 Kef8 draw
8 Kgf7 draw
9 Kgf8 draw
10 Ra8 draw
11 Rb1 draw
12 Rb6 draw
13 Rb7 draw
14 Rc8 draw
15 Ke7 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves