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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 Re6 draw
5 Rg1 draw
6 Rg3 draw
7 Rg4 draw
8 Rg5 draw
9 Kd1 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf1 loss in 2 half-moves
13 Kf2 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh6 loss in 2 half-moves