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

EGTB: win in 2 half-moves

# move score
1 Rh2 win in 1 half-moves
2 Rb6 loss in 4 half-moves
3 Rb7 loss in 4 half-moves
4 Rb8 loss in 4 half-moves
5 Ka1 loss in 2 half-moves
6 Ka2 loss in 2 half-moves
7 Kc1 loss in 2 half-moves
8 Kc2 loss in 2 half-moves
9 Ra2 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rd2 loss in 2 half-moves
15 Re2 loss in 1 half-moves
16 Rf2 loss in 1 half-moves
17 Rg2 loss in 1 half-moves