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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kb7 draw
3 Rd8 draw
4 Rf8 draw
5 Rg8 draw
6 Rh8 draw
7 Ka6 loss in 2 half-moves
8 Ka7 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Ka5 loss in 1 half-moves
16 Kc5 loss in 1 half-moves