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

EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Kd2 win in 5 half-moves
3 Rg1 win in 5 half-moves
4 Ka1 draw
5 Ka2 draw
6 Kbb2 draw
7 Kbc2 draw
8 Kcb2 draw
9 Kcc2 draw
10 Kd1 draw
11 Rd8 draw
12 Re8 draw
13 Rf8 draw
14 Rg3 draw
15 Rg4 draw
16 Rh8 draw
17 Ra8 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg7 loss in 2 half-moves