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

EGTB: win in 2 half-moves

# move score
1 Ra5 win in 1 half-moves
2 Kb4 win in 3 half-moves
3 Ka4 win in 5 half-moves
4 Rd6 draw
5 K2b2 loss in 2 half-moves
6 K2b3 loss in 2 half-moves
7 K3b2 loss in 2 half-moves
8 K3b3 loss in 2 half-moves
9 Ka1 loss in 2 half-moves
10 Kb1 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Rf6 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves