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EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 K2g2 draw
3 K3g2 draw
4 Kg1 draw
5 Kh1 draw
6 Kh4 draw
7 Ra3 draw
8 Rb1 draw
9 Rb2 draw
10 Rb7 draw
11 Rc3 draw
12 K2g3 loss in 2 half-moves
13 K3g3 loss in 2 half-moves
14 Kg4 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Re3 loss in 2 half-moves
21 Rf3 loss in 2 half-moves