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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rb8 win in 3 half-moves
4 K6b7 draw
5 K8b7 draw
6 Rb4 draw
7 Rb7 draw
8 Re3 draw
9 Rf3 draw
10 Rg3 draw
11 Rh3 draw
12 Ka5 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 K6a7 loss in 1 half-moves
22 K8a7 loss in 1 half-moves