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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Nf6 draw
3 Nf8 draw
4 Ng5 draw
5 Rg1 draw
6 d8=B loss in 2 half-moves
7 d8=K loss in 2 half-moves
8 d8=N loss in 2 half-moves
9 d8=Q loss in 2 half-moves
10 d8=R loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg2 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg8 loss in 2 half-moves