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 Kab7 draw
6 Kba7 draw
7 Kbb7 draw
8 Kc7 draw
9 Kc8 draw
10 Rb5 draw
11 Rf5 draw
12 Rg4 draw
13 Rg6 draw
14 Rh5 draw
15 Rc5 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves