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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rh5 win in 1 half-moves
3 Rf5 win in 3 half-moves
4 Rg5 win in 3 half-moves
5 Ra5 draw
6 K3b3 loss in 2 half-moves
7 K3b4 loss in 2 half-moves
8 K4b3 loss in 2 half-moves
9 K4b4 loss in 2 half-moves
10 Ka2 loss in 2 half-moves
11 Ka5 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rd5 loss in 2 half-moves
21 Re5 loss in 2 half-moves