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EGTB: win in 4 half-moves

# move score
1 Rd1 win in 3 half-moves
2 Rd2 win in 3 half-moves
3 Ra1 draw
4 Ra2 draw
5 Ra6 draw
6 Rb8 draw
7 Rc1 draw
8 Rc2 draw
9 Rc6 draw
10 Rd6 draw
11 Re6 draw
12 R2b3 loss in 2 half-moves
13 R2b4 loss in 2 half-moves
14 R2b5 loss in 2 half-moves
15 R6b3 loss in 2 half-moves
16 R6b4 loss in 2 half-moves
17 R6b5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rf6 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Rh2 loss in 2 half-moves
29 Rh6 loss in 2 half-moves