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 Kb6 draw
3 Kc6 draw
4 Kc7 draw
5 Kc8 draw
6 Rf3 draw
7 Ra3 loss in 8 half-moves
8 Ka6 loss in 4 half-moves
9 Ka7 loss in 4 half-moves
10 Ka8 loss in 4 half-moves
11 Kb8 loss in 4 half-moves
12 Rb4 loss in 4 half-moves
13 Rb1 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 Rg3 loss in 2 half-moves
20 Rh3 loss in 2 half-moves