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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Ra8 draw
6 Rb8 draw
7 Rd8 draw
8 Re8 draw
9 Rf4 draw
10 Rf5 draw
11 Rf6 draw
12 Rf7 draw
13 Kb1 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb4 loss in 2 half-moves
17 Kb6 loss in 2 half-moves
18 Kc1 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kc5 loss in 2 half-moves
22 Kc6 loss in 2 half-moves
23 Kd1 loss in 2 half-moves
24 Kd2 loss in 2 half-moves
25 Kd3 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rf2 loss in 2 half-moves
28 Rf3 loss in 2 half-moves
29 Rg8 loss in 2 half-moves
30 Rh8 loss in 2 half-moves