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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ra8 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Re8 draw
7 Rf8 draw
8 Rh8 draw
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Kee5 loss in 2 half-moves
15 Kef6 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Kfe5 loss in 2 half-moves
19 Kff6 loss in 2 half-moves
20 Kg4 loss in 2 half-moves
21 Kg5 loss in 2 half-moves
22 Kg6 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rb6 loss in 2 half-moves
26 Rb7 loss in 2 half-moves
27 Rc8 loss in 2 half-moves
28 Rd8 loss in 2 half-moves