Daily Sudoku Answer 

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R5C7 can only be <5>

R6C2 can only be <2>

R6C1 can only be <6>

R5C3 can only be <4>

R5C4 can only be <6>

R4C2 can only be <8>

R2C2 is the only square in column 2 that can be <5>

R3C2 is the only square in column 2 that can be <9>

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

R5C6 is the only square in column 6 that can be <1>

R5C5 can only be <7>

R6C6 can only be <9>

R6C5 can only be <3>

R6C8 can only be <7>

R3C1 is the only square in row 3 that can be <7>

R2C1 can only be <2>

R8C1 can only be <3>

R8C9 can only be <6>

R9C1 can only be <8>

R2C8 is the only square in row 2 that can be <6>

R7C9 is the only square in row 7 that can be <8>

R9C7 is the only square in row 9 that can be <3>

Squares R1C3 and R3C3 in column 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <18>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R7C3 - removing <1> from <126> leaving <26>

Intersection of row 2 with block 2. The value <4> 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.

R3C5 - removing <4> from <248> leaving <28>

Intersection of row 9 with block 8. The values <49> only appears in one or more of squares R9C4, R9C5 and R9C6 of row 9. These squares are the ones that intersect with block 8. Thus, the other (non-intersecting) squares of block 8 cannot contain these values.

R7C5 - removing <49> from <12469> leaving <126>

R8C4 - removing <4> from <245> leaving <25>

R8C5 - removing <4> from <1245> leaving <125>

Squares R4C8, R4C9, R1C8 and R1C9 form a Type-4 Unique Rectangle on <39>.

R1C8 - removing <9> from <1239> leaving <123>

R1C9 - removing <9> from <379> leaving <37>

Squares R7C3, R9C3, R7C5 and R9C5 form a Type-4 Unique Rectangle on <26>.

R7C5 - removing <2> from <126> leaving <16>

R9C5 - removing <2> from <2469> leaving <469>

Squares R1C7 (XY), R1C6 (XZ) and R2C9 (YZ) form an XY-Wing pattern on <7>. All squares that are buddies of both the XZ and YZ squares cannot be <7>.

R2C6 - removing <7> from <47> leaving <4>

R1C9 - removing <7> from <37> leaving <3>

R4C9 can only be <9>

R2C5 can only be <9>

R9C6 can only be <2>

R4C8 can only be <3>

R2C9 can only be <7>

R9C3 can only be <6>

R1C6 can only be <7>

R8C4 can only be <5>

R8C5 can only be <1>

R1C4 can only be <2>

R8C2 can only be <4>

R7C5 can only be <6>

R9C5 can only be <4>

R7C3 can only be <2>

R9C4 can only be <9>

R4C5 can only be <2>

R1C7 can only be <9>

R1C8 can only be <1>

R4C4 can only be <4>

R3C5 can only be <8>

R1C3 can only be <8>

R3C3 can only be <1>

R1C5 can only be <5>

R7C7 can only be <4>

R7C2 can only be <1>

R7C8 can only be <9>

R3C7 can only be <2>

R8C8 can only be <2>

R3C8 can only be <4>

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