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 Rc8 win in 3 half-moves
3 Ra8 win in 9 half-moves
4 Rd8 draw
5 Re8 draw
6 Rf8 draw
7 Rg1 draw
8 Rg2 draw
9 Rg6 draw
10 Ka1 loss in 2 half-moves
11 Ka2 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kc1 loss in 2 half-moves
17 Kc2 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh8 loss in 2 half-moves