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

EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Rg7 win in 3 half-moves
4 Rg8 win in 3 half-moves
5 Ra1 draw
6 Rb1 draw
7 Rd1 draw
8 Rg4 draw
9 K6b6 loss in 2 half-moves
10 K6b7 loss in 2 half-moves
11 K7b6 loss in 2 half-moves
12 K7b7 loss in 2 half-moves
13 Ka5 loss in 2 half-moves
14 Ka8 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh1 loss in 2 half-moves