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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Rc2 draw
4 Rd2 draw
5 Re2 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf6 draw
10 Rh2 draw
11 Ka3 loss in 2 half-moves
12 Ka5 loss in 2 half-moves
13 Ka7 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kb5 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves