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 Ke7 win in 3 half-moves
3 Kf7 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Kd8 draw
6 Kf8 draw
7 Rb5 draw
8 Rb6 draw
9 Ra8 loss in 4 half-moves
10 Rb1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves