6
8
8
9
2
1
2
1
7
5
4
1
3
1
4
1
5
4
8
9

This Sudoku Puzzle has 7 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Hidden Pair, undefined, Grouped AIC, Give Up techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 1 / Column 9 → 8 (Hidden Single)
  2. Locked Candidates Type 1 (Pointing): 2 in b6 => r7c7<>2
  3. Hidden Pair: 1,2 in r45c7 => r45c7<>3, r45c7<>6
  4. 2-String Kite: 2 in r1c5,r9c1 (connected by r7c5,r9c6) => r1c1<>2
  5. Grouped AIC: 6 6- r3c9 -3- r13c8 =3= r456c8 -3- r6c7 -6 => r23c7<>6
  6. Locked Candidates Type 1 (Pointing): 6 in b3 => r3c46<>6
  7. Give Up: Don't know how to proceed!
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