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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rf3 draw
3 K5a6 loss in 2 half-moves
4 K5b6 loss in 2 half-moves
5 K7a6 loss in 2 half-moves
6 K7b6 loss in 2 half-moves
7 Ka4 loss in 2 half-moves
8 Ka8 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh3 loss in 2 half-moves