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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kc3 draw
3 Kc4 draw
4 Kc5 draw
5 Rb8 draw
6 Rc8 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Rg7 draw
11 Rh8 draw
12 Ka2 loss in 2 half-moves
13 Ka3 loss in 2 half-moves
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Kb1 loss in 2 half-moves
17 Kb2 loss in 2 half-moves
18 Kb3 loss in 2 half-moves
19 Kb5 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg6 loss in 2 half-moves