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

EGTB: win in 4 half-moves

# move score
1 Rd4 win in 3 half-moves
2 K3b3 draw
3 K3b4 draw
4 K3d3 draw
5 K3d4 draw
6 K4b3 draw
7 K4b4 draw
8 K4d3 draw
9 K4d4 draw
10 Kb2 draw
11 Kc2 draw
12 Kd2 draw
13 Rh1 draw
14 Rh2 draw
15 Rh3 draw
16 Rh5 draw
17 Rh6 draw
18 Kb5 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rh7 loss in 2 half-moves
25 Rh8 loss in 2 half-moves