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EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 R5a6 draw
3 R5a7 draw
4 R8a6 draw
5 R8a7 draw
6 Ra4 draw
7 Rab5 draw
8 Rb4 draw
9 Rb6 draw
10 Rb7 draw
11 Rbb5 draw
12 Rf5 draw
13 Rh5 draw
14 Rh8 draw
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rd5 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rg5 loss in 2 half-moves
28 Rg8 loss in 2 half-moves