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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Nf2 draw
3 Nf6 draw
4 Nh6 draw
5 Ra7 draw
6 Rh8 draw
7 Ne3 loss in 2 half-moves
8 Ne5 loss in 2 half-moves
9 Nh2 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves