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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 R1b2 draw
3 R3b2 draw
4 Ra2 draw
5 Ra7 draw
6 Raa1 draw
7 Rba1 draw
8 Rh1 draw
9 Rh3 draw
10 Ra4 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rf3 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rg3 loss in 2 half-moves