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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 R5a6 draw
3 R7a6 draw
4 Ra3 draw
5 Ra8 draw
6 Rb4 draw
7 Rb5 draw
8 Rb7 draw
9 Rc4 draw
10 Rc5 draw
11 Rc7 draw
12 Rg4 draw
13 Rg5 draw
14 Ra1 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rh4 loss in 2 half-moves
26 Rh5 loss in 2 half-moves
27 Rh7 loss in 2 half-moves