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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Kd7 win in 7 half-moves
3 Kd6 draw
4 Kd8 draw
5 Ke6 draw
6 Ke8 draw
7 Kf6 draw
8 Kf7 draw
9 Kf8 draw
10 Rb8 draw
11 Rc7 draw
12 Ka5 loss in 2 half-moves
13 Ka6 loss in 2 half-moves
14 Ka7 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Kc7 loss in 2 half-moves
19 Ra7 loss in 2 half-moves