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 Rg7 win in 3 half-moves
3 Rg8 win in 3 half-moves
4 Ka6 draw
5 Ka8 draw
6 Kb7 draw
7 Kb8 draw
8 Kc7 draw
9 Kc8 draw
10 Kd7 draw
11 Ke7 draw
12 Ke8 draw
13 Ra5 draw
14 Re5 draw
15 Rf5 draw
16 Rg4 draw
17 Rg6 draw
18 Rh5 draw
19 Rb5 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd5 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves