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EGTB: win in 4 half-moves

# move score
1 R6a4 win in 3 half-moves
2 Kb6 draw
3 Kd6 draw
4 R1a2 draw
5 R1a4 draw
6 R6a2 draw
7 Rb1 draw
8 Rb6 draw
9 Rc1 draw
10 Rd1 draw
11 Kb5 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 R1a3 loss in 2 half-moves
18 R1a5 loss in 2 half-moves
19 R6a3 loss in 2 half-moves
20 R6a5 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Ra8 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rh1 loss in 2 half-moves