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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Ra8 draw
4 Rc8 draw
5 Re8 draw
6 Rg1 draw
7 Rg4 draw
8 Rg5 draw
9 Rg6 draw
10 Kb5 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kcd5 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Ke5 loss in 2 half-moves
22 Ked5 loss in 2 half-moves
23 Kf3 loss in 2 half-moves
24 Kf4 loss in 2 half-moves
25 Kf5 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg2 loss in 2 half-moves
28 Rg3 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh8 loss in 2 half-moves