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

EGTB: win in 6 half-moves

# move score
1 Rb6 win in 5 half-moves
2 Rb7 win in 5 half-moves
3 Rb8 win in 5 half-moves
4 Ra2 draw
5 Rb3 draw
6 Rb4 draw
7 Rb5 draw
8 Rf2 draw
9 Rg2 draw
10 Rh2 draw
11 Kc6 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kc8 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Kde7 loss in 2 half-moves
17 Kde8 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Kfe7 loss in 2 half-moves
21 Kfe8 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Kg8 loss in 2 half-moves
24 Rb1 loss in 2 half-moves
25 Rc2 loss in 2 half-moves
26 Rd2 loss in 2 half-moves
27 Re2 loss in 2 half-moves