Daily Sudoku Answer 

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R4C9 can only be <1>

R6C9 can only be <5>

R5C8 can only be <4>

R5C7 can only be <7>

R6C4 is the only square in column 4 that can be <4>

Squares R5C2 and R5C4 in row 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <29>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R5C3 - removing <29> from <129> leaving <1>

R5C5 - removing <2> from <1235> leaving <135>

R5C6 - removing <9> from <359> leaving <35>

R6C1 can only be <8>

R6C6 can only be <6>

R6C5 can only be <1>

R1C6 can only be <3>

R1C8 can only be <1>

R5C6 can only be <5>

R5C5 can only be <3>

R9C6 can only be <9>

R9C8 can only be <5>

R4C6 can only be <8>

R2C1 is the only square in row 2 that can be <1>

R3C7 is the only square in row 3 that can be <5>

R8C5 is the only square in row 8 that can be <5>

R7C2 is the only square in row 7 that can be <5>

R7C3 is the only square in row 7 that can be <8>

R2C7 is the only square in row 2 that can be <8>

R1C2 is the only square in row 1 that can be <8>

R9C7 is the only square in row 9 that can be <1>

R9C3 is the only square in row 9 that can be <4>

R2C5 is the only square in row 2 that can be <4>

R3C1 is the only square in row 3 that can be <4>

R7C7 is the only square in row 7 that can be <4>

R8C1 is the only square in column 1 that can be <7>

Squares R5C2 and R5C4 in row 5 and R9C2 and R9C4 in row 9 form a Simple X-Wing pattern on possibility <2>. All other instances of this possibility in columns 2 and 4 can be removed.

R3C2 - removing <2> from <269> leaving <69>

R4C4 - removing <2> from <279> leaving <79>

Squares R2C3 and R3C2 in block 1 form a simple naked pair. These 2 squares both contain the 2 possibilities <69>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R1C3 - removing <6> from <267> leaving <27>

R3C3 - removing <69> from <2679> leaving <27>

Squares R1C3 and R3C3 in column 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <27>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R8C3 - removing <2> from <269> leaving <69>

Intersection of row 8 with block 9. The value <2> 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.

R7C9 - removing <2> from <2369> leaving <369>

Squares R2C3 and R2C9 in row 2 and R8C3 and R8C9 in row 8 form a Simple X-Wing pattern on possibility <9>. All other instances of this possibility in columns 3 and 9 can be removed.

R3C9 - removing <9> from <2369> leaving <236>

R7C9 - removing <9> from <369> leaving <36>

Squares R2C9 (XY), R7C9 (XZ) and R3C8 (YZ) form an XY-Wing pattern on <3>. All squares that are buddies of both the XZ and YZ squares cannot be <3>.

R3C9 - removing <3> from <236> leaving <26>

R7C8 - removing <3> from <39> leaving <9>

R7C1 can only be <2>

R3C8 can only be <3>

R7C5 can only be <6>

R4C1 can only be <9>

R9C2 can only be <6>

R7C9 can only be <3>

R3C5 can only be <7>

R9C4 can only be <2>

R3C2 can only be <9>

R8C3 can only be <9>

R5C4 can only be <9>

R5C2 can only be <2>

R2C3 can only be <6>

R3C3 can only be <2>

R4C5 can only be <2>

R1C4 can only be <6>

R4C4 can only be <7>

R1C7 can only be <2>

R1C3 can only be <7>

R8C7 can only be <6>

R3C9 can only be <6>

R2C9 can only be <9>

R8C9 can only be <2>

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