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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rc4 draw
3 Rc5 draw
4 Rc6 draw
5 Rca7 draw
6 Rcg7 draw
7 Rf7 draw
8 Rh7 draw
9 Ra1 loss in 2 half-moves
10 Ra2 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Raa7 loss in 2 half-moves
16 Rab8 loss in 2 half-moves
17 Rac8 loss in 2 half-moves
18 Rad8 loss in 2 half-moves
19 Rae8 loss in 2 half-moves
20 Raf8 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rc2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rcc8 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Re7 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg2 loss in 2 half-moves
29 Rg3 loss in 2 half-moves
30 Rg4 loss in 2 half-moves
31 Rg5 loss in 2 half-moves
32 Rg6 loss in 2 half-moves
33 Rgb8 loss in 2 half-moves
34 Rgc8 loss in 2 half-moves
35 Rgd8 loss in 2 half-moves
36 Rge8 loss in 2 half-moves
37 Rgf8 loss in 2 half-moves
38 Rgg7 loss in 2 half-moves
39 Rh8 loss in 2 half-moves