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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 g6 draw
3 Nf3 draw
4 Nf5 draw
5 Ng2 draw
6 Ng6 draw
7 Rb6 draw
8 Ra4 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves