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 Rg3 win in 1 half-moves
3 Ra3 draw
4 Kc3 loss in 2 half-moves
5 Kc4 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kd5 loss in 2 half-moves
8 Ke3 loss in 2 half-moves
9 Ke4 loss in 2 half-moves
10 Ke5 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Rd2 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves