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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ka6 draw
3 Kb5 draw
4 Kb6 draw
5 Ra6 draw
6 Rc6 draw
7 Rd8 draw
8 Re6 draw
9 Rg6 draw
10 Ka4 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Rd2 loss in 2 half-moves
14 Rd3 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves