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 Kb4 draw
3 Kb5 draw
4 Rb3 draw
5 Rb5 draw
6 Rb6 draw
7 Ra1 loss in 10 half-moves
8 Ka6 loss in 8 half-moves
9 Ka4 loss in 6 half-moves
10 Rh1 loss in 4 half-moves
11 Kb6 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rf1 loss in 1 half-moves