Daily Sudoku Answer 

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R1C9 is the only square in row 1 that can be <1>

R4C1 is the only square in row 4 that can be <4>

R6C7 is the only square in row 6 that can be <5>

R8C7 can only be <4>

R8C2 can only be <7>

R8C3 can only be <1>

R8C5 can only be <2>

R8C8 can only be <5>

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

R3C4 is the only square in row 3 that can be <2>

R4C9 is the only square in row 4 that can be <2>

R5C2 is the only square in row 5 that can be <5>

R6C6 is the only square in row 6 that can be <1>

R5C7 is the only square in row 5 that can be <1>

R6C1 is the only square in row 6 that can be <2>

R7C5 is the only square in row 7 that can be <1>

R7C8 is the only square in row 7 that can be <2>

R7C2 is the only square in column 2 that can be <4>

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

R1C1 is the only square in block 1 that can be <7>

Intersection of row 1 with block 2. The values <356> only appears in one or more of squares R1C4, R1C5 and R1C6 of row 1. These squares are the ones that intersect with block 2. Thus, the other (non-intersecting) squares of block 2 cannot contain these values.

R2C5 - removing <36> from <3678> leaving <78>

R3C5 - removing <6> from <4678> leaving <478>

Squares R1C6<35>, R4C6<38> and R7C6<58> in column 6 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <358>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R3C6 - removing <8> from <478> leaving <47>

R9C6 - removing <3> from <347> leaving <47>

Intersection of block 2 with column 5. The value <8> only appears in one or more of squares R1C5, R2C5 and R3C5 of block 2. These squares are the ones that intersect with column 5. Thus, the other (non-intersecting) squares of column 5 cannot contain this value.

R5C5 - removing <8> from <3678> leaving <367>

Squares R4C3 and R4C7 in row 4 and R7C3 and R7C7 in row 7 form a Simple X-Wing pattern on possibility <9>. All other instances of this possibility in columns 3 and 7 can be removed.

R3C7 - removing <9> from <679> leaving <67>

R5C3 - removing <9> from <6789> leaving <678>

R3C8 is the only square in row 3 that can be <9>

Squares R3C6, R9C6, R3C5 and R9C5 form a Type-4 Unique Rectangle on <47>.

R3C5 - removing <7> from <478> leaving <48>

R9C5 - removing <7> from <347> leaving <34>

Squares R5C9 (XYZ), R5C1 (XZ) and R6C9 (YZ) form an XYZ-Wing pattern on <6>. All squares that are buddies of all three squares cannot be <6>.

R5C8 - removing <6> from <36> leaving <3>

R2C8 can only be <6>

R2C2 can only be <8>

R3C7 can only be <7>

R3C6 can only be <4>

R2C7 can only be <3>

R2C5 can only be <7>

R3C2 can only be <6>

R5C5 can only be <6>

R3C5 can only be <8>

R9C6 can only be <7>

R5C1 can only be <9>

R1C5 can only be <3>

R9C4 can only be <3>

R1C6 can only be <5>

R9C5 can only be <4>

R1C4 can only be <6>

R7C6 can only be <8>

R5C9 can only be <8>

R9C1 can only be <6>

R5C3 can only be <7>

R6C9 can only be <6>

R9C9 can only be <9>

R4C7 can only be <9>

R7C4 can only be <5>

R4C6 can only be <3>

R7C3 can only be <9>

R4C4 can only be <8>

R7C7 can only be <6>

R4C3 can only be <6>

R6C4 can only be <7>

R6C3 can only be <8>

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