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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Rd6 draw
5 Re6 draw
6 Rg1 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Kfg1 loss in 2 half-moves
14 Kfg2 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Khg1 loss in 2 half-moves
17 Khg2 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh6 loss in 2 half-moves