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 Kab6 draw
3 Kbb6 draw
4 Ra1 draw
5 Ra2 draw
6 Ra3 draw
7 Rb6 draw
8 Re6 draw
9 Rf6 draw
10 Rg6 draw
11 Kba8 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kaa8 loss in 1 half-moves
16 Kab8 loss in 1 half-moves
17 Kbb8 loss in 1 half-moves
18 Ra4 loss in 1 half-moves
19 Rc6 loss in 1 half-moves
20 Rd6 loss in 1 half-moves
21 Rh6 loss in 1 half-moves