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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rg8 win in 3 half-moves
3 Ra5 win in 5 half-moves
4 Kaa7 draw
5 Kba7 draw
6 Kc8 draw
7 Rb5 draw
8 Rf5 draw
9 Rg1 draw
10 Rg6 draw
11 Rh5 draw
12 Kab7 loss in 2 half-moves
13 Kbb7 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rg2 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rg4 loss in 2 half-moves