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EGTB: win in 4 half-moves

# move score
1 Rh7 win in 3 half-moves
2 Kh3 draw
3 Ra1 draw
4 Ra5 draw
5 Ra6 draw
6 Ra8 draw
7 Rb7 draw
8 Rf7 draw
9 K1g1 loss in 2 half-moves
10 K1g2 loss in 2 half-moves
11 K2g1 loss in 2 half-moves
12 K2g2 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves