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EGTB: win in 4 half-moves

# move score
1 Nf6 win in 3 half-moves
2 Ra5 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Rc5 draw
7 Nb8 loss in 8 half-moves
8 Nf8 loss in 8 half-moves
9 Nb6 loss in 4 half-moves
10 Nc5 loss in 2 half-moves
11 Ne5 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rh5 loss in 2 half-moves