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EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 g8=B draw
3 Nb4 draw
4 Nb8 draw
5 Nc5 draw
6 Nc7 draw
7 Rf2 draw
8 Rg1 draw
9 Rh2 draw
10 g8=K loss in 2 half-moves
11 g8=N loss in 2 half-moves
12 g8=Q loss in 2 half-moves
13 g8=R loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rg6 loss in 2 half-moves