Daily Sudoku Answer 

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R1C2 is the only square in row 1 that can be <9>

R4C9 is the only square in row 4 that can be <9>

R9C8 is the only square in row 9 that can be <5>

R6C1 is the only square in row 6 that can be <5>

R2C3 is the only square in row 2 that can be <5>

R3C4 is the only square in row 3 that can be <5>

R3C6 is the only square in row 3 that can be <2>

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

R3C2 is the only square in column 2 that can be <3>

R7C8 is the only square in column 8 that can be <1>

Intersection of row 3 with block 3. The value <6> only appears in one or more of squares R3C7, R3C8 and R3C9 of row 3. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.

R1C8 - removing <6> from <3467> leaving <347>

R1C9 - removing <6> from <3678> leaving <378>

Intersection of column 3 with block 4. The value <6> only appears in one or more of squares R4C3, R5C3 and R6C3 of column 3. These squares are the ones that intersect with block 4. Thus, the other (non-intersecting) squares of block 4 cannot contain this value.

R5C1 - removing <6> from <468> leaving <48>

Squares R8C4<27>, R8C7<237> and R8C9<37> in row 8 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <237>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R8C3 - removing <7> from <147> leaving <14>

R8C5 - removing <237> from <12347> leaving <14>

Intersection of row 8 with block 9. The value <3> only appears in one or more of squares R8C7, R8C8 and R8C9 of row 8. These squares are the ones that intersect with block 9. Thus, the other (non-intersecting) squares of block 9 cannot contain this value.

R9C7 - removing <3> from <3679> leaving <679>

Intersection of column 3 with block 1. The value <7> only appears in one or more of squares R1C3, R2C3 and R3C3 of column 3. These squares are the ones that intersect with block 1. Thus, the other (non-intersecting) squares of block 1 cannot contain this value.

R2C1 - removing <7> from <1478> leaving <148>

R3C1 - removing <7> from <478> leaving <48>

Squares R3C1 and R5C1 in column 1 form a simple naked pair. These 2 squares both contain the 2 possibilities <48>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C1 - removing <48> from <148> leaving <1>

R7C1 - removing <48> from <4678> leaving <67>

R9C1 - removing <8> from <1678> leaving <167>

Squares R7C1 and R7C9 in row 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <67>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R7C4 - removing <7> from <2789> leaving <289>

R7C6 - removing <7> from <478> leaving <48>

R7C7 - removing <67> from <2679> leaving <29>

Squares R7C2 and R7C6 in row 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <48>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R7C4 - removing <8> from <289> leaving <29>

Intersection of row 2 with block 2. The value <8> 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.

R1C4 - removing <8> from <678> leaving <67>

R1C5 - removing <8> from <14678> leaving <1467>

R1C6 - removing <8> from <1478> leaving <147>

R9C4 is the only square in column 4 that can be <8>

R9C2 can only be <1>

R7C6 can only be <4>

R7C2 can only be <8>

R8C5 can only be <1>

R8C3 can only be <4>

R6C2 can only be <2>

R4C2 can only be <4>

R5C1 can only be <8>

R5C3 can only be <6>

R3C1 can only be <4>

R5C5 can only be <3>

R4C3 can only be <1>

R5C7 can only be <4>

R9C5 can only be <7>

R2C7 can only be <7>

R9C1 can only be <6>

R9C6 can only be <3>

R8C4 can only be <2>

R2C6 can only be <8>

R3C8 can only be <6>

R3C9 can only be <8>

R4C8 can only be <7>

R3C3 can only be <7>

R1C9 can only be <3>

R6C8 can only be <3>

R6C7 can only be <6>

R1C8 can only be <4>

R8C7 can only be <3>

R4C4 can only be <6>

R7C4 can only be <9>

R8C9 can only be <7>

R7C9 can only be <6>

R9C7 can only be <9>

R7C1 can only be <7>

R7C7 can only be <2>

R1C5 can only be <6>

R2C5 can only be <4>

R6C6 can only be <7>

R1C3 can only be <8>

R4C5 can only be <2>

R1C4 can only be <7>

R6C5 can only be <8>

R1C6 can only be <1>

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