Daily Sudoku Answer 

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R7C2 can only be <8>

R9C2 can only be <1>

R1C3 is the only square in row 1 that can be <1>

R2C7 is the only square in row 2 that can be <1>

R4C3 is the only square in row 4 that can be <3>

R2C3 can only be <7>

R3C3 can only be <8>

R8C3 can only be <2>

R1C1 can only be <4>

R8C1 can only be <7>

R5C3 can only be <6>

R1C8 can only be <6>

R1C5 can only be <7>

R7C1 can only be <9>

R3C5 is the only square in row 3 that can be <6>

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

R2C1 can only be <5>

R2C5 is the only square in row 2 that can be <3>

R2C4 is the only square in row 2 that can be <9>

R4C5 is the only square in row 4 that can be <9>

R5C9 is the only square in row 5 that can be <7>

R5C7 is the only square in row 5 that can be <9>

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

R6C4 is the only square in row 6 that can be <7>

R7C9 is the only square in row 7 that can be <3>

R7C6 is the only square in row 7 that can be <7>

R8C5 is the only square in row 8 that can be <1>

R8C9 is the only square in row 8 that can be <6>

Intersection of block 8 with column 5. The value <2> only appears in one or more of squares R7C5, R8C5 and R9C5 of block 8. 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 <2> from <2458> leaving <458>

R6C5 - removing <2> from <2458> leaving <458>

Intersection of block 5 with row 4. The value <2> only appears in one or more of squares R4C4, R4C5 and R4C6 of block 5. These squares are the ones that intersect with row 4. Thus, the other (non-intersecting) squares of row 4 cannot contain this value.

R4C8 - removing <2> from <245> leaving <45>

R4C9 - removing <2> from <2458> leaving <458>

Intersection of block 9 with column 7. The value <4> only appears in one or more of squares R7C7, R8C7 and R9C7 of block 9. These squares are the ones that intersect with column 7. Thus, the other (non-intersecting) squares of column 7 cannot contain this value.

R6C7 - removing <4> from <2458> leaving <258>

Squares R5C2, R6C2, R5C5 and R6C5 form a Type-2 Unique Rectangle on <45>.

R4C4 - removing <8> from <248> leaving <24>

R9C5 - removing <8> from <258> leaving <25>

R4C9 is the only square in row 4 that can be <8>

R9C7 is the only square in row 9 that can be <8>

R8C4 is the only square in row 8 that can be <8>

Intersection of column 9 with block 3. The value <4> only appears in one or more of squares R1C9, R2C9 and R3C9 of column 9. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.

R3C8 - removing <4> from <245> leaving <25>

Squares R3C8 (XY), R3C4 (XZ) and R4C8 (YZ) form an XY-Wing pattern on <4>. All squares that are buddies of both the XZ and YZ squares cannot be <4>.

R4C4 - removing <4> from <24> leaving <2>

R3C4 can only be <4>

R2C6 can only be <2>

R2C9 can only be <4>

Squares R4C8 and R8C7 form a remote naked pair. <45> can be removed from any square that is common to their groups.

R6C7 - removing <5> from <25> leaving <2>

R6C1 can only be <8>

R7C7 can only be <4>

R7C5 can only be <2>

R8C7 can only be <5>

R8C6 can only be <4>

R9C9 can only be <2>

R9C5 can only be <5>

R3C9 can only be <5>

R3C8 can only be <2>

R5C1 can only be <2>

R4C6 can only be <5>

R6C5 can only be <4>

R4C8 can only be <4>

R5C8 can only be <5>

R5C2 can only be <4>

R6C2 can only be <5>

R5C5 can only be <8>

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