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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Rb8 win in 9 half-moves
5 Kb8 draw
6 Kc3 draw
7 Kc4 draw
8 Kc7 draw
9 Kd5 draw
10 Kd7 draw
11 Kd8 draw
12 Ke4 draw
13 Ke5 draw
14 Ra4 draw
15 Rb3 draw
16 Rb5 draw
17 Rb6 draw
18 Rc4 draw
19 Kd3 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves