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

EGTB: win in 2 half-moves

# move score
1 Rg1 win in 1 half-moves
2 Ka7 draw
3 Kb1 draw
4 Kb2 draw
5 Kb3 draw
6 Kb7 draw
7 Kb8 draw
8 Kd1 draw
9 Kd2 draw
10 Ra1 draw
11 Rb1 draw
12 Kc3 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves