数独 9 x 9 ソルバーを作成しようとしています。私はこの次のコードを使用しました:
:-use_module(library(clpfd)).
solve(X, Grid):-
X = [A1, A2, A3, A4, A5, A6, A7, A8, A9,
B1, B2, B3, B4, B5, B6, B7, B8, B9,
C1, C2, C3, C4, C5, C6, C7, C8, C9,
D1, D2, D3, D4, D5, D6, D7, D8, D9,
E1, E2, E3, E4, E5, E6, E7, E8, E9,
F1, F2, F3, F4, F5, F6, F7, F8, F9,
G1, G2, G3, G4, G5, G6, G7, G8, G9,
H1, H2, H3, H4, H5, H6, H7, H8, H9,
I1, I2, I3, I4, I5, I6, I7, I8, I9],
member(Grid, X),
%rows have to be unique and from 1 to 9
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A1, A2, A3, A4, A5, A6, A7, A8, A9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [B1, B2, B3, B4, B5, B6, B7, B8, B9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [C1, C2, C3, C4, C5, C6, C7, C8, C9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [D1, D2, D3, D4, D5, D6, D7, D8, D9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [E1, E2, E3, E4, E5, E6, E7, E8, E9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [F1, F2, F3, F4, F5, F6, F7, F8, F9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [G1, G2, G3, G4, G5, G6, G7, G8, G9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [H1, H2, H3, H4, H5, H6, H7, H8, H9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [I1, I2, I3, I4, I5, I6, I7, I8, I9]),
%coloums have to be unique and from 1 to 9
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A1, B1, C1, D1, E1, F1, G1, H1, I1]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A2, B2, C2, D2, E2, F2, G2, H2, I2]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A3, B3, C3, D3, E3, F3, G3, H3, I3]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A4, B4, C4, D4, E4, F4, G4, H4, I4]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A5, B5, C5, D5, E5, F5, G5, H5, I5]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A6, B6, C6, D6, E6, F6, G6, H6, I6]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A7, B7, C7, D7, E7, F7, G7, H7, I7]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A8, B8, C8, D8, E8, F8, G8, H8, I8]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A9, B9, C9, D9, E9, F9, G9, H9, I9]),
%3X3 boxes have to be unique and from 1 to 9
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A1, A2, A3, B1, B2, B3, C1, C2, C3]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A4, A5, A6, B4, B5, B6, C4, C5, C6]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [A7, A8, A9, B7, B8, B9, C7, C8, C9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [D1, D2, D3, E1, E2, E3, F1, F2, F3]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [D4, D5, D6, E4, E5, E6, F4, F5, F6]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [D7, D8, D9, E7, E8, E9, F7, F8, F9]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [G1, G2, G3, H1, H2, H3, I1, I2, I3]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [G4, G5, G6, H4, H5, H6, I4, I5, I6]),
permutation(['1','2', '3', '4', '5', '6', '7', '8', '9'], [G7, G8, G9, H7, H8, H9, I7, I8, I9]).
ただし、クエリを実行すると:
solve(X,[_,7,2,4,_,_,_,_,1,_,8,_,7,_,_,3,2,_,6,3,1,_,_,_,7,_,_,_,_,_,5,2,_,_,1,4,_,_,5,9,_,4,6,_,_,8,4,_,_,3,7,_,_,_,_,_,9,_,_,_,2,5,3,_,6,8,_,_,5,_,7,_,2,_,_,_,_,9,4,6,_]
)。
プログラムがハングするだけです。誰が私が犯したエラーを見ることができますか? ありがとう。
編集:クエリのエラーに気づきましたが、修正後もプログラムがハングします