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 Ka5 draw
3 Kb5 draw
4 Kc5 draw
5 Ra7 draw
6 Rb5 draw
7 Rb6 draw
8 Rc7 draw
9 Ka4 loss in 8 half-moves
10 Kb3 loss in 8 half-moves
11 Ka3 loss in 6 half-moves
12 Rh7 loss in 4 half-moves
13 Kc3 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 1 half-moves