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 Rf2 win in 1 half-moves
3 Rb4 draw
4 Rb8 draw
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 Rb6 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rd2 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Rg2 loss in 2 half-moves
15 Rh2 loss in 2 half-moves
16 Rb5 loss in 1 half-moves
17 Rb7 loss in 1 half-moves