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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kg3 draw
3 Kg4 draw
4 Kh2 draw
5 Rd1 draw
6 Re8 draw
7 Rf8 draw
8 Rh8 draw
9 Kh4 loss in 6 half-moves
10 Rd7 loss in 6 half-moves
11 Kg2 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rd6 loss in 2 half-moves