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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb4 draw
3 Rb8 draw
4 Re7 draw
5 Rf7 draw
6 Rg7 draw
7 Rh7 draw
8 K1a1 loss in 2 half-moves
9 K1a2 loss in 2 half-moves
10 K1c1 loss in 2 half-moves
11 K1c2 loss in 2 half-moves
12 K2a1 loss in 2 half-moves
13 K2a2 loss in 2 half-moves
14 K2c1 loss in 2 half-moves
15 K2c2 loss in 2 half-moves
16 Ka3 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Rd7 loss in 2 half-moves