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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kc5 draw
6 Kc6 draw
7 Ra6 draw
8 Rb7 draw
9 Rf6 draw
10 Rg6 draw
11 Rh6 draw
12 Kb4 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Rc6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Re6 loss in 2 half-moves