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

EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 Rb7 draw
3 Re6 draw
4 Rf6 draw
5 Rg6 draw
6 Rh6 draw
7 Ka3 loss in 2 half-moves
8 Ka4 loss in 2 half-moves
9 Ka5 loss in 2 half-moves
10 Ka7 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb7 loss in 2 half-moves
14 Kb8 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves