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 Ra6 draw
3 Rb5 draw
4 Rb7 draw
5 Rb8 draw
6 Rc6 draw
7 Rf6 draw
8 Ka3 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rh6 loss in 2 half-moves
19 Kb5 loss in 1 half-moves