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 Rb4 draw
3 Rb5 draw
4 Ka7 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Ra2 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rb6 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rd2 loss in 2 half-moves
15 Re2 loss in 2 half-moves
16 Rf2 loss in 1 half-moves
17 Rg2 loss in 1 half-moves
18 Rh2 loss in 1 half-moves