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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 K6c7 draw
3 K6d7 draw
4 K6e7 draw
5 K8c7 draw
6 K8d7 draw
7 K8e7 draw
8 Kc5 draw
9 Kc6 draw
10 Kc8 draw
11 Kd5 draw
12 Ke5 draw
13 Ke6 draw
14 Ke8 draw
15 Ra3 draw
16 Rb4 draw
17 Rb6 draw
18 Rb7 draw
19 Rb8 draw
20 Rc3 draw
21 Rd3 draw
22 Rh3 draw
23 Rb1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rg3 loss in 2 half-moves