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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Rc4 draw
3 Rc5 draw
4 Rc6 draw
5 Rc7 draw
6 Kd7 loss in 2 half-moves
7 Kd8 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Kef7 loss in 2 half-moves
10 Kef8 loss in 2 half-moves
11 Kf6 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kg8 loss in 2 half-moves
14 Kgf7 loss in 2 half-moves
15 Kgf8 loss in 2 half-moves
16 Kh6 loss in 2 half-moves
17 Kh7 loss in 2 half-moves
18 Kh8 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rc2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves