Daily Sudoku Answer 

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R2C5 can only be <9>

R8C5 can only be <3>

R4C5 is the only square in row 4 that can be <5>

R5C5 is the only square in row 5 that can be <2>

R5C6 is the only square in row 5 that can be <4>

R3C7 is the only square in row 3 that can be <4>

R1C5 is the only square in row 1 that can be <4>

R3C3 is the only square in row 3 that can be <2>

R6C6 is the only square in row 6 that can be <8>

R3C6 is the only square in column 6 that can be <3>

R3C4 can only be <1>

R5C9 is the only square in column 9 that can be <1>

R5C2 can only be <3>

R6C4 is the only square in row 6 that can be <3>

R1C9 is the only square in column 9 that can be <9>

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 <69> leaving <9>

R6C7 is the only square in row 6 that can be <9>

R4C4 is the only square in row 4 that can be <9>

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

Squares R4C3 and R6C3 in column 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <16>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R1C3 - removing <1> from <137> leaving <37>

R9C3 - removing <1> from <137> leaving <37>

Intersection of block 8 with row 7. The value <7> 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 this value.

R7C1 - removing <7> from <1357> leaving <135>

R7C7 - removing <7> from <567> leaving <56>

R7C9 - removing <7> from <3567> leaving <356>

Intersection of block 3 with column 9. The value <6> only appears in one or more of squares R1C9, R2C9 and R3C9 of block 3. These squares are the ones that intersect with column 9. Thus, the other (non-intersecting) squares of column 9 cannot contain this value.

R7C9 - removing <6> from <356> leaving <35>

R9C9 - removing <6> from <35678> leaving <3578>

Squares R2C1 and R2C9 in row 2 and R8C1 and R8C9 in row 8 form a Simple X-Wing pattern on possibility <7>. All other instances of this possibility in columns 1 and 9 can be removed.

R1C1 - removing <7> from <1357> leaving <135>

R9C1 - removing <7> from <13578> leaving <1358>

R9C9 - removing <7> from <3578> leaving <358>

Squares R4C7 and R7C4 form a remote naked pair. <67> can be removed from any square that is common to their groups.

R7C7 - removing <6> from <56> leaving <5>

R7C9 can only be <3>

R7C1 can only be <1>

R9C9 can only be <8>

R8C9 can only be <7>

R7C6 can only be <7>

R9C2 can only be <5>

R7C4 can only be <6>

R4C6 can only be <1>

R8C1 can only be <8>

R2C9 can only be <6>

R9C1 can only be <3>

R1C2 can only be <1>

R2C1 can only be <7>

R3C9 can only be <5>

R3C1 can only be <6>

R4C3 can only be <6>

R6C5 can only be <6>

R6C3 can only be <1>

R9C5 can only be <1>

R5C4 can only be <7>

R9C3 can only be <7>

R1C1 can only be <5>

R1C3 can only be <3>

R4C7 can only be <7>

R1C7 can only be <2>

R5C8 can only be <6>

R9C8 can only be <2>

R9C7 can only be <6>

R1C8 can only be <7>

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