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

EGTB: win in 4 half-moves

# move score
1 Rd1 win in 3 half-moves
2 Kd1 draw
3 Kef1 draw
4 Kgf1 draw
5 Kh1 draw
6 Ra2 draw
7 Ra8 draw
8 Rb1 draw
9 Rc1 draw
10 Kd2 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kef2 loss in 2 half-moves
13 Kg2 loss in 2 half-moves
14 Kgf2 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Ra7 loss in 2 half-moves