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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 K3g3 draw
3 K3g4 draw
4 K4g3 draw
5 K4g4 draw
6 Kg2 draw
7 Kg5 draw
8 Kh2 draw
9 Kh5 draw
10 Rc1 draw
11 Rc5 draw
12 Rc6 draw
13 Rc7 draw
14 Rd8 draw
15 Re8 draw
16 Rf8 draw
17 Rh8 draw
18 Ra8 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves