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 Ka7 draw
3 Kb7 draw
4 Rb1 draw
5 Rb2 draw
6 Rb6 draw
7 Rg3 draw
8 Rh3 draw
9 Kb5 loss in 4 half-moves
10 Kb6 loss in 4 half-moves
11 Ka5 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves