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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ka7 draw
3 Kc6 draw
4 Kc7 draw
5 Ra3 draw
6 Rb1 draw
7 Rb2 draw
8 Rb5 draw
9 Rc3 draw
10 Kb6 loss in 12 half-moves
11 Kb8 loss in 12 half-moves
12 Kc8 loss in 12 half-moves
13 Ka6 loss in 6 half-moves
14 Ka8 loss in 6 half-moves
15 Rd3 loss in 4 half-moves
16 Rb6 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rg3 loss in 1 half-moves