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EGTB: win in 4 half-moves

# move score
1 R2b3 win in 3 half-moves
2 g1=K draw
3 R8b3 draw
4 Ra2 draw
5 Ra8 draw
6 Rb1 draw
7 Rc2 draw
8 Rc8 draw
9 Rd2 draw
10 Rd8 draw
11 Rf2 draw
12 g1=B loss in 2 half-moves
13 g1=N loss in 2 half-moves
14 g1=Q loss in 2 half-moves
15 g1=R loss in 2 half-moves
16 R2b4 loss in 2 half-moves
17 R2b5 loss in 2 half-moves
18 R2b6 loss in 2 half-moves
19 R2b7 loss in 2 half-moves
20 R8b4 loss in 2 half-moves
21 R8b5 loss in 2 half-moves
22 R8b6 loss in 2 half-moves
23 R8b7 loss in 2 half-moves
24 Re2 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh8 loss in 2 half-moves