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

EGTB: win in 2 half-moves

# move score
1 Ra6 win in 1 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Ra1 draw
6 Ra3 draw
7 Ra7 draw
8 Rb8 draw
9 Rc8 draw
10 Re8 draw
11 Kc1 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves