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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Kg3 draw
5 Ra2 draw
6 Rb2 draw
7 Rc2 draw
8 Rd2 draw
9 Re2 draw
10 Rg1 draw
11 Ke7 loss in 2 half-moves
12 Kf3 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kf8 loss in 2 half-moves
17 Kg5 loss in 2 half-moves
18 Kh3 loss in 2 half-moves
19 Kh4 loss in 2 half-moves
20 Kh5 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves