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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Ka7 draw
3 Kb7 draw
4 Ra3 draw
5 Ra7 draw
6 Ra8 draw
7 Ka8 loss in 6 half-moves
8 Kc7 loss in 6 half-moves
9 Ra6 loss in 6 half-moves
10 Kc8 loss in 4 half-moves
11 Ra1 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rh5 loss in 1 half-moves