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 Rh1 draw
7 Rh2 draw
8 Rh3 draw
9 Rh4 draw
10 K3b4 loss in 2 half-moves
11 K3c4 loss in 2 half-moves
12 K3d4 loss in 2 half-moves
13 K5b4 loss in 2 half-moves
14 K5c4 loss in 2 half-moves
15 K5d4 loss in 2 half-moves
16 Kb2 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Kc2 loss in 2 half-moves
21 Kc6 loss in 2 half-moves
22 Kd2 loss in 2 half-moves
23 Kd3 loss in 2 half-moves
24 Kd5 loss in 2 half-moves
25 Kd6 loss in 2 half-moves
26 Rf7 loss in 2 half-moves
27 Rg7 loss in 2 half-moves
28 Rh5 loss in 2 half-moves
29 Rh6 loss in 2 half-moves
30 Rh8 loss in 2 half-moves