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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Rd1 win in 3 half-moves
3 Kc5 win in 5 half-moves
4 Kc6 draw
5 Kc7 draw
6 Kd5 draw
7 Kd7 draw
8 Ra2 draw
9 Ra3 draw
10 Ra6 draw
11 Rb1 draw
12 Rh1 draw
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves