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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 draw
3 Kd6 draw
4 Re6 draw
5 Rf6 draw
6 Rg6 draw
7 Kb5 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Kd5 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Rd6 loss in 2 half-moves
13 Rh1 loss in 2 half-moves
14 Rh2 loss in 2 half-moves
15 Rh3 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Rh5 loss in 2 half-moves
18 Rh7 loss in 2 half-moves
19 Rh8 loss in 2 half-moves