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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 K1b1 draw
3 K2b1 draw
4 Ka3 draw
5 Rc2 draw
6 Rg6 draw
7 Rg7 draw
8 Rg8 draw
9 Rh2 draw
10 K1b2 loss in 2 half-moves
11 K2b2 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rd2 loss in 2 half-moves
15 Re2 loss in 2 half-moves
16 Rf2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves