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 Kb4 win in 9 half-moves
3 Ka4 draw
4 Ka6 draw
5 Kc2 draw
6 Kc3 draw
7 Kc4 draw
8 Kd2 draw
9 Kd4 draw
10 Ke2 draw
11 Ke3 draw
12 Ke4 draw
13 Ra1 draw
14 Rb1 draw
15 Rf1 draw
16 Rg2 draw
17 Rg3 draw
18 Rg5 draw
19 Rh1 draw
20 Kb5 loss in 2 half-moves
21 Kb6 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves