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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Ka6 draw
3 Kb6 draw
4 Kb7 draw
5 Ra4 draw
6 Rb6 draw
7 Rb7 draw
8 Rb8 draw
9 Kb8 loss in 10 half-moves
10 Ka8 loss in 6 half-moves
11 Rb5 loss in 6 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rf4 loss in 1 half-moves