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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Nb4 draw
3 Ra7 draw
4 Rc7 draw
5 Re7 draw
6 Rg1 draw
7 Rg2 draw
8 Rg3 draw
9 Kg8 loss in 2 half-moves
10 Kh7 loss in 2 half-moves
11 Nc1 loss in 2 half-moves
12 Nc3 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg5 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh7 loss in 2 half-moves