Copyright © Kevin Stone

R2C9 is the only square in row 2 that can be <9>

R2C4 is the only square in column 4 that can be <2>

R2C1 can only be <4>

R2C2 can only be <3>

R5C2 is the only square in column 2 that can be <4>

R4C6 is the only square in column 6 that can be <5>

Squares R4C1, R4C2 and R4C9 in row 4 form a simple locked triplet. These 3 squares all contain the 3 possibilities <267>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R4C3 - removing <26> from <269> leaving <9>

R4C5 - removing <7> from <3789> leaving <389>

R5C3 can only be <1>

R3C3 can only be <8>

R1C5 is the only square in row 1 that can be <8>

R4C5 can only be <3>

R4C4 can only be <8>

R3C5 can only be <4>

R6C4 can only be <4>

R6C6 can only be <7>

R3C4 can only be <3>

R7C6 can only be <8>

R5C5 can only be <9>

R8C6 can only be <4>

R5C7 can only be <5>

R6C5 can only be <1>

R5C8 can only be <7>

R3C8 can only be <5>

R3C2 can only be <1>

R8C8 can only be <8>

R3C9 can only be <7>

R9C1 is the only square in row 9 that can be <8>

R7C1 is the only square in column 1 that can be <1>

R4C1 is the only square in column 1 that can be <7>

Squares R6C1 and R6C9 in row 6 form a simple locked pair. These 2 squares both contain the 2 possibilities <26>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R6C7 - removing <6> from <369> leaving <39>

R6C8 - removing <2> from <239> leaving <39>

Squares R4C9 and R6C9 in column 9 form a simple locked pair. These 2 squares both contain the 2 possibilities <26>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R8C9 - removing <6> from <56> leaving <5>

R9C9 - removing <26> from <12456> leaving <145>

R8C1 can only be <6>

R6C1 can only be <2>

R9C3 can only be <2>

R9C8 can only be <4>

R1C3 can only be <6>

R7C2 can only be <7>

R9C9 can only be <1>

R1C8 can only be <3>

R9C7 can only be <6>

R1C9 can only be <4>

R1C7 can only be <1>

R6C8 can only be <9>

R6C9 can only be <6>

R1C1 can only be <5>

R4C2 can only be <6>

R6C7 can only be <3>

R7C8 can only be <2>

R4C9 can only be <2>

R7C5 can only be <6>

R9C2 can only be <5>

R7C7 can only be <9>

R9C5 can only be <7>

R1C2 can only be <2>