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 Ra8 win in 5 half-moves
3 Rc8 win in 5 half-moves
4 Rh8 win in 5 half-moves
5 Rg1 draw
6 Rg4 draw
7 Rg5 draw
8 Rg6 draw
9 K5b6 loss in 2 half-moves
10 K5c6 loss in 2 half-moves
11 K5d6 loss in 2 half-moves
12 K7b6 loss in 2 half-moves
13 K7c6 loss in 2 half-moves
14 K7d6 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kb5 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Kc4 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Kd7 loss in 2 half-moves
24 Kd8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rf8 loss in 2 half-moves
28 Rg2 loss in 2 half-moves
29 Rg3 loss in 2 half-moves
30 Rg7 loss in 2 half-moves