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 K5g6 draw
3 K6g6 draw
4 Kg7 draw
5 Kh4 draw
6 Kh7 draw
7 Ra8 draw
8 Rb1 draw
9 Rc1 draw
10 Rh1 draw
11 K5g5 loss in 2 half-moves
12 K6g5 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves