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 Rg5 win in 1 half-moves
3 Rh5 win in 1 half-moves
4 Ka3 draw
5 Ka5 draw
6 Kg7 draw
7 Kg8 draw
8 Kh7 draw
9 Ra5 draw
10 Rb1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb4 draw
14 Rb6 draw
15 Rc5 draw
16 Re5 draw
17 Rf5 draw
18 Kb3 loss in 2 half-moves
19 Kb4 loss in 2 half-moves
20 Rb7 loss in 1 half-moves
21 Rd5 loss in 1 half-moves