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