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 Rb8 win in 3 half-moves
3 Kc5 win in 5 half-moves
4 K5c6 draw
5 K5d6 draw
6 K5e6 draw
7 K7c6 draw
8 K7d6 draw
9 K7e6 draw
10 Kc7 draw
11 Kc8 draw
12 Kd8 draw
13 Ke5 draw
14 Ke7 draw
15 Ke8 draw
16 Ra3 draw
17 Rb5 draw
18 Rb6 draw
19 Rb7 draw
20 Rf3 draw
21 Rg3 draw
22 Rh3 draw
23 Kc4 loss in 2 half-moves
24 Kd4 loss in 2 half-moves
25 Ke4 loss in 2 half-moves
26 Rb1 loss in 2 half-moves
27 Rb2 loss in 2 half-moves
28 Rc3 loss in 2 half-moves
29 Rd3 loss in 2 half-moves
30 Re3 loss in 2 half-moves