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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ra1 draw
3 Ra2 draw
4 Rb8 draw
5 Rbc2 draw
6 Rbd2 draw
7 Rbe1 draw
8 Rc1 draw
9 Rd1 draw
10 Re6 draw
11 Re8 draw
12 Rec2 draw
13 Red2 draw
14 Ree1 draw
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Re5 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Rh2 loss in 2 half-moves