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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kde4 draw
3 Kfe4 draw
4 Ra4 draw
5 Rb1 draw
6 Rb2 draw
7 Rb8 draw
8 Re4 draw
9 Rf4 draw
10 Rh4 draw
11 Kc4 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kg4 loss in 2 half-moves
19 Kg5 loss in 2 half-moves
20 Kg6 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rc4 loss in 2 half-moves
26 Rd4 loss in 2 half-moves
27 Kde5 loss in 1 half-moves
28 Kde6 loss in 1 half-moves
29 Kfe5 loss in 1 half-moves
30 Kfe6 loss in 1 half-moves