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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Kc2 win in 5 half-moves
3 Rc8 win in 5 half-moves
4 Kc1 draw
5 Kc3 draw
6 Kd1 draw
7 Kd3 draw
8 Ke1 draw
9 Ke2 draw
10 Ke3 draw
11 Kf2 draw
12 Kf3 draw
13 Kg2 draw
14 Kh2 draw
15 Kh3 draw
16 Ra8 draw
17 Rb1 draw
18 Rb2 draw
19 Rd8 draw
20 Rh8 draw
21 Kf4 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Kh4 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rb7 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf8 loss in 2 half-moves
30 Rg8 loss in 2 half-moves