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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Ra7 draw
3 Rc7 draw
4 Rd7 draw
5 Re7 draw
6 Rg1 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Kb2 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kcd3 loss in 2 half-moves
16 Kcd4 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Ke3 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ked3 loss in 2 half-moves
22 Ked4 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 Rf7 loss in 2 half-moves
27 Rg2 loss in 2 half-moves
28 Rg6 loss in 2 half-moves
29 Rg8 loss in 2 half-moves
30 Rh7 loss in 2 half-moves