Daily Sudoku Answer 

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R2C1 is the only square in row 2 that can be <8>

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

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

R1C1 can only be <7>

R1C2 can only be <5>

R7C3 is the only square in row 7 that can be <9>

R9C5 is the only square in row 9 that can be <5>

R3C6 is the only square in row 3 that can be <5>

R9C8 is the only square in row 9 that can be <8>

R4C3 is the only square in column 3 that can be <7>

R9C2 is the only square in column 2 that can be <7>

R4C8 is the only square in column 8 that can be <1>

R5C5 is the only square in column 5 that can be <1>

Intersection of row 3 with block 2. The value <2> only appears in one or more of squares R3C4, R3C5 and R3C6 of row 3. These squares are the ones that intersect with block 2. Thus, the other (non-intersecting) squares of block 2 cannot contain this value.

R1C5 - removing <2> from <249> leaving <49>

Intersection of column 7 with block 6. The values <89> only appears in one or more of squares R4C7, R5C7 and R6C7 of column 7. These squares are the ones that intersect with block 6. Thus, the other (non-intersecting) squares of block 6 cannot contain these values.

R5C9 - removing <9> from <2349> leaving <234>

Squares R2C4 and R2C9 in row 2 and R8C4 and R8C9 in row 8 form a Simple X-Wing pattern on possibility <7>. All other instances of this possibility in columns 4 and 9 can be removed.

R3C4 - removing <7> from <247> leaving <24>

R7C4 - removing <7> from <2347> leaving <234>

Squares R3C4<24>, R5C4<234> and R7C4<234> in column 4 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <234>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R8C4 - removing <34> from <1347> leaving <17>

Intersection of block 8 with row 7. The values <23> only appears in one or more of squares R7C4, R7C5 and R7C6 of block 8. These squares are the ones that intersect with row 7. Thus, the other (non-intersecting) squares of row 7 cannot contain these values.

R7C7 - removing <3> from <347> leaving <47>

Squares R3C7 and R7C7 in column 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <47>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R4C7 - removing <4> from <349> leaving <39>

R5C7 - removing <4> from <3489> leaving <389>

R6C7 - removing <4> from <3489> leaving <389>

R4C5 is the only square in row 4 that can be <4>

R1C5 can only be <9>

R2C6 can only be <1>

R2C4 can only be <7>

R8C6 can only be <4>

R8C1 can only be <3>

R7C6 can only be <2>

R2C9 can only be <9>

R8C4 can only be <1>

R3C5 can only be <2>

R3C4 can only be <4>

R6C5 can only be <3>

R6C2 can only be <9>

R7C5 can only be <7>

R5C4 can only be <2>

R7C7 can only be <4>

R7C4 can only be <3>

R5C6 can only be <9>

R3C7 can only be <7>

R9C9 can only be <3>

R8C9 can only be <7>

R9C1 can only be <4>

R5C9 can only be <4>

R5C3 can only be <8>

R1C9 can only be <2>

R6C8 can only be <2>

R6C7 can only be <8>

R4C2 can only be <3>

R6C3 can only be <4>

R5C7 can only be <3>

R1C8 can only be <4>

R4C7 can only be <9>

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