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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Ra3 win in 5 half-moves
3 Ra5 win in 5 half-moves
4 Rb1 win in 5 half-moves
5 Rc1 win in 5 half-moves
6 Rg1 win in 7 half-moves
7 Kd4 draw
8 Kd5 draw
9 Ke4 draw
10 Kf4 draw
11 Kf5 draw
12 Ra2 draw
13 Re1 draw
14 Rh1 draw
15 Kd6 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rd1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves