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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Kf1 draw
3 Kf2 draw
4 Kf3 draw
5 Rc3 draw
6 Rc4 draw
7 Rc5 draw
8 Rf1 draw
9 Kg1 loss in 2 half-moves
10 Kg3 loss in 2 half-moves
11 Kg5 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kg7 loss in 2 half-moves
14 Kh1 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Kh3 loss in 2 half-moves
17 Kh5 loss in 2 half-moves
18 Kh7 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rc2 loss in 2 half-moves
22 Rc6 loss in 2 half-moves
23 Rc7 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves