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 Rb4 win in 5 half-moves
3 Ra7 draw
4 Rb1 draw
5 Rb2 draw
6 Rb8 draw
7 Rg7 draw
8 Rh7 draw
9 Kc3 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kdd3 loss in 2 half-moves
13 Kdd5 loss in 2 half-moves
14 Kde3 loss in 2 half-moves
15 Kde5 loss in 2 half-moves
16 Ked3 loss in 2 half-moves
17 Ked5 loss in 2 half-moves
18 Kee3 loss in 2 half-moves
19 Kee5 loss in 2 half-moves
20 Kf3 loss in 2 half-moves
21 Kf4 loss in 2 half-moves
22 Kf5 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rc7 loss in 2 half-moves
26 Rd7 loss in 2 half-moves
27 Re7 loss in 2 half-moves
28 Rf7 loss in 2 half-moves