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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb1 draw
3 Rb5 draw
4 Re2 draw
5 Rg2 draw
6 Rh2 draw
7 Kaa6 loss in 2 half-moves
8 Kaa8 loss in 2 half-moves
9 Kab6 loss in 2 half-moves
10 Kab8 loss in 2 half-moves
11 Kba6 loss in 2 half-moves
12 Kba8 loss in 2 half-moves
13 Kbb6 loss in 2 half-moves
14 Kbb8 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kc7 loss in 2 half-moves
17 Kc8 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rc2 loss in 2 half-moves
22 Rd2 loss in 2 half-moves
23 Rf2 loss in 2 half-moves