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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rg5 win in 3 half-moves
3 Rg6 win in 3 half-moves
4 Ra1 win in 5 half-moves
5 Ka4 draw
6 Ka6 draw
7 Ka7 draw
8 Kb4 draw
9 Kb5 draw
10 Rf1 draw
11 Rg2 draw
12 Rg3 draw
13 Rh1 draw
14 Kb6 loss in 2 half-moves
15 Kb7 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves