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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Nb6 draw
3 Nc5 draw
4 Nf6 draw
5 Nf8 draw
6 Ra1 draw
7 Rb2 draw
8 Rb3 draw
9 Nb8 loss in 12 half-moves
10 Ne5 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves