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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Ka5 draw
6 Kb2 draw
7 Kb3 draw
8 Kb4 draw
9 Kc1 draw
10 Kc2 draw
11 Rf6 draw
12 Kb5 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rh6 loss in 2 half-moves