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 Rb2 draw
3 Rb3 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Ra1 loss in 10 half-moves
8 Rh1 loss in 6 half-moves
9 Ka5 loss in 2 half-moves
10 Ka7 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Kb5 loss in 1 half-moves
18 Kb6 loss in 1 half-moves
19 Kb7 loss in 1 half-moves