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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Rb8 draw
3 Rd8 draw
4 Re1 draw
5 Re3 draw
6 Re4 draw
7 Re5 draw
8 Rh8 draw
9 Ka6 loss in 2 half-moves
10 Kaa7 loss in 2 half-moves
11 Kab8 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kba7 loss in 2 half-moves
14 Kbb8 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kc7 loss in 2 half-moves
17 Kc8 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves