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

EGTB: win in 4 half-moves

# move score
1 Rd6 win in 3 half-moves
2 Kb4 draw
3 Kb5 draw
4 Kb6 draw
5 Kcc4 draw
6 Kcc6 draw
7 Kcd4 draw
8 Kcd6 draw
9 Kdd4 draw
10 Kdd6 draw
11 Ra8 draw
12 Rc8 draw
13 Rd7 draw
14 Kdc4 loss in 2 half-moves
15 Kdc6 loss in 2 half-moves
16 Ke4 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rh8 loss in 2 half-moves