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