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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 Rg4 win in 1 half-moves
3 Rg5 win in 1 half-moves
4 Rg6 win in 1 half-moves
5 Ra8 draw
6 Re8 draw
7 Rf8 draw
8 Kc1 loss in 2 half-moves
9 Kc2 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Ke1 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rg2 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh8 loss in 2 half-moves