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 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Kb6 draw
6 Kb7 draw
7 Rc6 draw
8 Rd6 draw
9 Re3 draw
10 Rf6 draw
11 Re1 loss in 2 half-moves
12 Re2 loss in 2 half-moves
13 Re4 loss in 2 half-moves
14 Re5 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rh6 loss in 2 half-moves