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EGTB: win in 4 half-moves

# move score
1 Kf7 win in 3 half-moves
2 Kd8 draw
3 Kf8 draw
4 Kg2 draw
5 Kg3 draw
6 Kg4 draw
7 Kh2 draw
8 Kh4 draw
9 Rg1 draw
10 Rh2 draw
11 Kd7 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ra1 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves