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EGTB: win in 4 half-moves

# move score
1 Nb7 win in 3 half-moves
2 Rc5 draw
3 Rd8 draw
4 Rf8 draw
5 g7 loss in 2 half-moves
6 Nb3 loss in 2 half-moves
7 Nc4 loss in 2 half-moves
8 Nc6 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves