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

EGTB: win in 2 half-moves

# move score
1 Ka6 win in 1 half-moves
2 Rb8 win in 3 half-moves
3 Rb7 win in 5 half-moves
4 K7b7 draw
5 K7b8 draw
6 K8b7 draw
7 K8b8 draw
8 Kb6 draw
9 Ra5 draw
10 Rb1 draw
11 Rb6 draw
12 Rc5 draw
13 Rd5 draw
14 Rh5 draw
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rg5 loss in 2 half-moves