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EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Ka7 draw
3 Ka8 draw
4 Ra7 draw
5 Rb7 draw
6 Rd7 draw
7 Re7 draw
8 Rf7 draw
9 Rg1 draw
10 Rg2 draw
11 Rg3 draw
12 Rg6 draw
13 Kb1 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb7 loss in 2 half-moves
17 Kc1 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Kd1 loss in 2 half-moves
22 Kd2 loss in 2 half-moves
23 Kd3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh7 loss in 2 half-moves