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

EGTB: win in 6 half-moves

# move score
1 Rb7 win in 5 half-moves
2 Rc7 win in 5 half-moves
3 Rd7 win in 5 half-moves
4 Ra7 win in 15 half-moves
5 Ke7 draw
6 Ke8 draw
7 Re7 draw
8 Rf7 draw
9 Rg1 draw
10 Rg2 draw
11 Rg3 draw
12 Rg4 draw
13 Kb4 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Kf7 loss in 2 half-moves
22 Kg8 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh7 loss in 2 half-moves