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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Rd7 win in 3 half-moves
3 Ke7 draw
4 Kf8 draw
5 Rd1 draw
6 Rd2 draw
7 Rd6 draw
8 Kb7 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Kcd7 loss in 2 half-moves
11 Ked7 loss in 2 half-moves
12 Kf7 loss in 2 half-moves
13 Rd3 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Rd5 loss in 2 half-moves