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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Ka6 draw
3 Ka7 draw
4 Ka8 draw
5 Kb6 draw
6 Kb8 draw
7 Ra1 draw
8 Ra2 draw
9 Ra7 draw
10 Rb4 draw
11 Rc4 draw
12 Kc6 loss in 20 half-moves
13 Kc7 loss in 10 half-moves
14 Kc8 loss in 4 half-moves
15 Rd4 loss in 4 half-moves
16 Ra5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Re4 loss in 1 half-moves