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 Rb2 draw
3 Rb4 draw
4 Rb5 draw
5 Rb6 draw
6 Rd8 draw
7 Re8 draw
8 Rf8 draw
9 Rh8 draw
10 Kc3 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kde3 loss in 2 half-moves
16 Kde4 loss in 2 half-moves
17 Kde5 loss in 2 half-moves
18 Kf3 loss in 2 half-moves
19 Kf5 loss in 2 half-moves
20 Kfe3 loss in 2 half-moves
21 Kfe4 loss in 2 half-moves
22 Kfe5 loss in 2 half-moves
23 Kg3 loss in 2 half-moves
24 Kg4 loss in 2 half-moves
25 Kg5 loss in 2 half-moves
26 Ra8 loss in 2 half-moves
27 Rb1 loss in 2 half-moves
28 Rb3 loss in 2 half-moves
29 Rb7 loss in 2 half-moves
30 Rc8 loss in 2 half-moves