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

EGTB: win in 2 half-moves

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