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Daily Sudoku Answer 



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Oct 16 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s026150



Reasoning 



R2C2 is the only square in row 2 that can be <9>

R2C9 is the only square in row 2 that can be <7>

R3C8 is the only square in row 3 that can be <3>

R4C4 is the only square in row 4 that can be <1>

R7C5 is the only square in row 7 that can be <3>

R6C6 is the only square in row 6 that can be <3>

R5C2 is the only square in row 5 that can be <3>

R9C2 is the only square in row 9 that can be <7>

R3C3 is the only square in row 3 that can be <7>

R3C5 is the only square in row 3 that can be <4>

R4C3 is the only square in row 4 that can be <4>

R1C1 is the only square in row 1 that can be <4>

R5C1 is the only square in row 5 that can be <7>

R6C7 is the only square in row 6 that can be <4>

R5C4 is the only square in row 5 that can be <4>

R8C3 is the only square in column 3 that can be <1>

R8C5 is the only square in column 5 that can be <9>

R7C1 is the only square in column 1 that can be <9>

Intersection of row 2 with block 2. The value <5> only appears in one or more of squares R2C4, R2C5 and R2C6 of row 2. These squares are the ones that intersect with block 2. Thus, the other (non-intersecting) squares of block 2 cannot contain this value.

R1C6 - removing <5> from <2568> leaving <268>

Intersection of column 4 with block 8. The value <8> only appears in one or more of squares R7C4, R8C4 and R9C4 of column 4. These squares are the ones that intersect with block 8. Thus, the other (non-intersecting) squares of block 8 cannot contain this value.

R8C6 - removing <8> from <258> leaving <25>

Intersection of column 5 with block 5. The value <8> only appears in one or more of squares R4C5, R5C5 and R6C5 of column 5. These squares are the ones that intersect with block 5. Thus, the other (non-intersecting) squares of block 5 cannot contain this value.

R5C6 - removing <8> from <2568> leaving <256>

Intersection of column 9 with block 6. The value <5> only appears in one or more of squares R4C9, R5C9 and R6C9 of column 9. These squares are the ones that intersect with block 6. Thus, the other (non-intersecting) squares of block 6 cannot contain this value.

R5C8 - removing <5> from <12589> leaving <1289>

R6C8 - removing <5> from <258> leaving <28>

R6C5 is the only square in row 6 that can be <5>

R2C4 is the only square in row 2 that can be <5>

R7C8 is the only square in row 7 that can be <5>

R7C7 is the only square in row 7 that can be <1>

R5C8 is the only square in row 5 that can be <1>

R5C9 is the only square in row 5 that can be <9>

R5C3 is the only square in row 5 that can be <5>

R1C3 can only be <2>

R3C2 can only be <6>

R1C2 can only be <5>

R4C9 is the only square in row 4 that can be <5>

R8C6 is the only square in row 8 that can be <5>

R9C8 is the only square in row 9 that can be <9>

R9C7 is the only square in row 9 that can be <6>

R2C7 can only be <2>

R2C5 can only be <6>

R5C7 can only be <8>

R3C9 can only be <8>

R3C6 can only be <2>

R9C9 can only be <2>

R1C8 can only be <6>

R6C8 can only be <2>

R6C1 can only be <8>

R8C8 can only be <8>

R8C1 can only be <2>

R9C4 can only be <8>

R1C6 can only be <8>

R5C5 can only be <2>

R5C6 can only be <6>

R4C5 can only be <8>

R4C2 can only be <2>

R7C2 can only be <8>

R7C4 can only be <2>



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