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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rc7 win in 1 half-moves
3 Kc6 draw
4 Kd6 draw
5 Kc4 loss in 2 half-moves
6 Kd4 loss in 2 half-moves
7 Ke4 loss in 2 half-moves
8 Ke5 loss in 2 half-moves
9 Ke6 loss in 2 half-moves
10 Ra5 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rc8 loss in 2 half-moves