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EGTB: win in 4 half-moves

# move score
1 R6a4 win in 3 half-moves
2 Kb6 draw
3 Kc6 draw
4 R6a5 draw
5 Ra7 draw
6 Rd3 draw
7 Rf3 draw
8 Rg6 draw
9 Rh6 draw
10 Ka7 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 R3a4 loss in 2 half-moves
16 R3a5 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rc3 loss in 2 half-moves
23 Rc6 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Re6 loss in 2 half-moves
27 Rf6 loss in 2 half-moves
28 Rg3 loss in 2 half-moves
29 Rh3 loss in 2 half-moves