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

EGTB: win in 2 half-moves

# move score
1 Kb6 win in 1 half-moves
2 Ka6 draw
3 Ka8 draw
4 Kab7 draw
5 Kab8 draw
6 Kc7 draw
7 Kcb7 draw
8 Kcb8 draw
9 Kd7 draw
10 Kd8 draw
11 Rd8 draw
12 Rh4 draw
13 Rh5 draw
14 Rh6 draw
15 Rh7 draw
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh1 loss in 2 half-moves
20 Rh2 loss in 2 half-moves
21 Rh3 loss in 2 half-moves