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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rc5 win in 3 half-moves
3 Rd5 win in 5 half-moves
4 Kc2 draw
5 Kc3 draw
6 Kc4 draw
7 Kd2 draw
8 Kd4 draw
9 Ra5 draw
10 Rb3 draw
11 Rb6 draw
12 Rb7 draw
13 Rb8 draw
14 Re5 draw
15 Rf5 draw
16 Ke2 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rg5 loss in 2 half-moves
22 Rh5 loss in 2 half-moves