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EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ra5 draw
3 Ra8 draw
4 Rc5 draw
5 Rc8 draw
6 Rg5 draw
7 R5b6 loss in 4 half-moves
8 R5b7 loss in 4 half-moves
9 R8b6 loss in 4 half-moves
10 R8b7 loss in 4 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rh5 loss in 2 half-moves
22 Rh8 loss in 2 half-moves