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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Ra8 win in 3 half-moves
3 Ra6 win in 5 half-moves
4 Ra3 draw
5 Ra4 draw
6 Ra5 draw
7 Rc2 draw
8 Rf2 draw
9 Rg2 draw
10 Rh2 draw
11 Kd7 loss in 2 half-moves
12 Kd8 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Kef7 loss in 2 half-moves
15 Kef8 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Kg6 loss in 2 half-moves
18 Kg8 loss in 2 half-moves
19 Kgf7 loss in 2 half-moves
20 Kgf8 loss in 2 half-moves
21 Kh6 loss in 2 half-moves
22 Kh7 loss in 2 half-moves
23 Kh8 loss in 2 half-moves
24 Ra1 loss in 2 half-moves
25 Rb2 loss in 2 half-moves
26 Rd2 loss in 2 half-moves
27 Re2 loss in 2 half-moves