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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 f8=K draw
3 Ra5 draw
4 Rb5 draw
5 Rc1 draw
6 Rc6 draw
7 Rc7 draw
8 Rg5 draw
9 Rh5 draw
10 f8=B loss in 2 half-moves
11 f8=N loss in 2 half-moves
12 f8=Q loss in 2 half-moves
13 f8=R loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rf5 loss in 2 half-moves