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 K7b7 draw
3 K7b8 draw
4 K7d7 draw
5 K7d8 draw
6 K8b7 draw
7 K8b8 draw
8 K8d7 draw
9 K8d8 draw
10 Kb6 draw
11 Kc6 draw
12 Kd6 draw
13 Re7 draw
14 Rf1 draw
15 Rf2 draw
16 Rf6 draw
17 Rf8 draw
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves