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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Rb2 draw
3 Rb6 draw
4 Rb7 draw
5 Rd1 draw
6 Re1 draw
7 Rf1 draw
8 Rh1 draw
9 Kg2 loss in 2 half-moves
10 Kg3 loss in 2 half-moves
11 Kg4 loss in 2 half-moves
12 Kh2 loss in 2 half-moves
13 Kh4 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc1 loss in 2 half-moves