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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb7 win in 3 half-moves
3 Rb8 win in 3 half-moves
4 Rh3 draw
5 K7b7 loss in 2 half-moves
6 K7b8 loss in 2 half-moves
7 K8b7 loss in 2 half-moves
8 K8b8 loss in 2 half-moves
9 Ka6 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 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
20 Rg3 loss in 2 half-moves