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 K2a3 draw
3 K2b3 draw
4 K4a3 draw
5 K4b3 draw
6 Ka1 draw
7 Ka5 draw
8 Kb1 draw
9 Kb2 draw
10 Ra5 draw
11 Rb6 draw
12 Rf6 draw
13 Rg6 draw
14 Rh6 draw
15 Kb4 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re6 loss in 2 half-moves