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Daily Sudoku Answer 



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Jun 03 - Super Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s027897



Reasoning 



R3C8 can only be <3>

R7C2 can only be <6>

R7C5 can only be <2>

R3C2 can only be <5>

R8C3 can only be <9>

R9C3 can only be <8>

R7C8 can only be <7>

R9C9 can only be <3>

R2C3 can only be <7>

R1C3 can only be <6>

R5C3 can only be <2>

R3C5 can only be <6>

R1C4 is the only square in row 1 that can be <9>

R4C2 is the only square in row 4 that can be <7>

R5C2 is the only square in row 5 that can be <9>

R6C8 is the only square in row 6 that can be <1>

R9C4 is the only square in row 9 that can be <7>

Intersection of row 6 with block 5. The value <6> only appears in one or more of squares R6C4, R6C5 and R6C6 of row 6. These squares are the ones that intersect with block 5. Thus, the other (non-intersecting) squares of block 5 cannot contain this value.

R5C4 - removing <6> from <3456> leaving <345>

R5C6 - removing <6> from <34568> leaving <3458>

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

R1C6 - removing <8> from <248> leaving <24>

R2C6 - removing <8> from <23458> leaving <2345>

Squares R4C4<24>, R4C6<248>, R6C4<46> and R6C6<468> in block 5 form a comprehensive naked quad. These 4 squares can only contain the 4 possibilities <2468>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R5C4 - removing <4> from <345> leaving <35>

R5C6 - removing <48> from <3458> leaving <35>

Squares R5C4, R5C6, R2C4 and R2C6 form a Type-3 Unique Rectangle on <35>. Upon close inspection, it is clear that:

(R2C4 or R2C6)<24> and R1C6<24> form a naked pair on <24> in block 2. No other squares in the block can contain these possibilities

R1C5 - removing <4> from <48> leaving <8>

R2C5 - removing <4> from <3458> leaving <358>

(R2C4 or R2C6)<24>, R1C6<24> and R1C5<48> form a naked triplet on <248> in block 2. No other squares in the block can contain these possibilities

R2C5 - removing <8> from <358> leaving <35>

(R2C4 or R2C6)<24> and R2C8<24> form a naked pair on <24> in row 2. No other squares in the row can contain these possibilities

R2C7 - removing <2> from <12> leaving <1>

(R2C4 or R2C6)<24>, R2C8<24> and R2C7<12> form a naked triplet on <124> in row 2. No other squares in the row can contain these possibilities

R2C2 - removing <1> from <18> leaving <8>

R1C1 can only be <1>

R6C2 can only be <4>

R6C4 can only be <6>

R8C2 can only be <1>

R5C1 can only be <8>

R6C6 can only be <8>

R9C1 can only be <4>

R9C5 can only be <5>

R9C7 can only be <6>

R2C5 can only be <3>

R9C6 can only be <1>

R5C7 can only be <7>

R8C8 can only be <2>

R8C5 can only be <4>

R5C9 can only be <4>

R1C7 can only be <2>

R5C8 can only be <6>

R1C9 can only be <7>

R4C8 can only be <8>

R8C4 can only be <3>

R8C7 can only be <5>

R2C8 can only be <4>

R1C6 can only be <4>

R8C6 can only be <6>

R5C4 can only be <5>

R4C6 can only be <2>

R4C4 can only be <4>

R2C6 can only be <5>

R5C6 can only be <3>

R2C4 can only be <2>



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