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 Ka4 draw
3 Kb6 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Kb4 loss in 8 half-moves
8 Kb5 loss in 8 half-moves
9 Ra8 loss in 8 half-moves
10 Rc8 loss in 6 half-moves
11 Re8 loss in 6 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Rd8 loss in 1 half-moves