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EGTB: win in 4 half-moves

# move score
1 R7a2 win in 3 half-moves
2 R1a3 draw
3 R1a5 draw
4 R7a3 draw
5 R7a5 draw
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Kd8 loss in 2 half-moves
10 Ke6 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 R1a2 loss in 2 half-moves
14 R1a4 loss in 2 half-moves
15 R1a6 loss in 2 half-moves
16 R7a4 loss in 2 half-moves
17 R7a6 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Kd6 loss in 1 half-moves