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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 g5 draw
3 Na3 draw
4 Na7 draw
5 Nc3 draw
6 Nc7 draw
7 Nd4 draw
8 Nd6 draw
9 Rb8 draw
10 Rf4 draw
11 Ra8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rh8 loss in 2 half-moves