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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Rd7 draw
5 Rg2 draw
6 Rg3 draw
7 Rg4 draw
8 Rh7 draw
9 Ka4 loss in 2 half-moves
10 Ka5 loss in 2 half-moves
11 Ka6 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Kf8 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg8 loss in 2 half-moves