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 Ra1 draw
3 Ra2 draw
4 Ra3 draw
5 Ra5 draw
6 Rd6 draw
7 Re6 draw
8 Rf6 draw
9 Rg6 draw
10 Kc1 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke1 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ke4 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves
22 K1c2 loss in 1 half-moves
23 K1d2 loss in 1 half-moves
24 K1e2 loss in 1 half-moves
25 K3c2 loss in 1 half-moves
26 K3d2 loss in 1 half-moves
27 K3e2 loss in 1 half-moves