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

EGTB: win in 4 half-moves

# move score
1 Kd6 win in 3 half-moves
2 Kb6 draw
3 Kc6 draw
4 Kd5 draw
5 Kd7 draw
6 Kd8 draw
7 Ke7 draw
8 Kf7 draw
9 Kf8 draw
10 Re6 draw
11 Re7 draw
12 Rf5 draw
13 Rg5 draw
14 Rh5 draw
15 Kb4 loss in 2 half-moves
16 Kb5 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Re4 loss in 2 half-moves