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EGTB: win in 4 half-moves

# move score
1 R2b4 win in 3 half-moves
2 R2b6 draw
3 Ra7 draw
4 Ra8 draw
5 Rf2 draw
6 R2b3 loss in 2 half-moves
7 R2b5 loss in 2 half-moves
8 R7b3 loss in 2 half-moves
9 R7b4 loss in 2 half-moves
10 R7b5 loss in 2 half-moves
11 R7b6 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh2 loss in 2 half-moves
29 Rh7 loss in 2 half-moves
30 Rh8 loss in 2 half-moves