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

EGTB: win in 2 half-moves

# move score
1 Ka5 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Rg8 win in 1 half-moves
4 Rb7 draw
5 Ka3 loss in 2 half-moves
6 Ka4 loss in 2 half-moves
7 Kb3 loss in 2 half-moves
8 Kc3 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Kc5 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves
17 Kb5 loss in 1 half-moves
18 Rb5 loss in 1 half-moves