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 Kb7 draw
3 Kc7 draw
4 Rc3 draw
5 Kb8 loss in 10 half-moves
6 Rb8 loss in 10 half-moves
7 Kd7 loss in 8 half-moves
8 Kd8 loss in 6 half-moves
9 Ra3 loss in 4 half-moves
10 Rb1 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves
17 Rd3 loss in 1 half-moves
18 Re3 loss in 1 half-moves
19 Rf3 loss in 1 half-moves