by **Pyrrhon** » Mon Oct 30, 2006 5:50 pm

I have here a walk through the un-transformed puzzle. It is possible and in all likelihood that not all steps are necessary. I hope I have no mistake in writing.

Naked and Hidden Singles are skipped

Box-Diagonal interaction between B5 and diagonal R1C9-R9C1 => R1C9, R2C8, R3C7 <> 4

Pointing Pair R3C4-R7C8 in diagonal R1C2-R9C1 => R1C5, R2C4, R7C9, R9C7 <> 4

Box-Diagonal interaction between B2 and diagonal R1C6-R9C5 => R4C3, R5C2, R6C1 <> 4

Box-Diagonal interaction between B4 and diagonal R1C7-R9C6 => R7C4 <> 4

Box-Diagonal interaction between B8 and diagonal R1C4-R9C5 => R4C1 <> 4

Diagonal-Box interaction between diagonal R1C-R9C7 => R7C7, R8C9, R9C8, R9C9 <> 6

Pointing Pair R3C2-R7C6 in diagonal R1C9-R9C8 => R1C3, R3C1, R8C6 <> 6

Box-Diagonal interaction between B8 and diagonal R1C3-R9C4 => R5C8, R6C7 <> 6

Pointing Pair R4C7-R6C8 in group B6 => R1C4, R9C2 <> 6

Box-Cell Interaction of B1 and R6C7 => R6C7 <> 2

Box-Cell Interaction of B1 and R7C7 => R7C7 <> 8

Box-Cell Interaction of B3 and R7C3 => R7C3 <> 7

Box-Cell Interaction of B6 and R1C3 => R1C3 <> 7

Box-Cell Interaction of B1 and R7C8 => R7C8 <> 7

Box-Diagonal interaction between B9 and diagonal R1C1-R9C9 => R3C3 <> 7

Naked Pair 5 and 8 in B9 => R2C3, R7C9, R9C1, R9C7, R9C8, R9C9 <> 5, 8

Diagonal-Box interaction between diagonal R1C1-R9C9 and B1 => R1C3, R2C1, R3C1, R3C2 <> 3

Naked Quadruple 2, 3, 6, 9 in B6

Pointing Pair R3C6-R7C2 in diagonal R1C8-R9C9 => R2C6, R8C2 <> 6

Box-Cell Interaction of B3 and R7C4 => R7C4 <> 2

Box-Cell Interaction of B9 and R4C3 => R4C3 <> 3

Diagonal-Cell Interaction of diagonal R1C3-R9C4 and R2C1 => R2C1 <> 5

Diagonal-Cell Interaction of diagonal R1C6-R9C7 and R6C2 => R6C2 <> 5, 8

Generalized X-Wing with strong links in B2 B6 and weak links in diagonals R1C3-R9C2 and R1C4-R9C3 => R7C9 <> 6

Box-Diagonal interaction between B5 and diagonal R1C1-R9C9 => R1C1 <> 6

Box-Diagonal interaction between B1 and diagonal R1C4-R9C5 => R6C8 <> 6

Box-Diagonal interaction between B1 and diagonal R1C3-R9C4 => R5C8, R9C4 <> 2

Box-Diagonal interaction between B4 and diagonal R1C6-R9C7 => R1C6 <> 5

Hidden Pair 2, 4 in B3

Pointing Pair R1C9-R9C8 in diagonal R1C9-R9C8 => R1C7 <> 3

Box-Diagonal interaction between B3 and diagonal R1C9-R9C1 => R7C3, R8C2 <> 3

Turbot Fish with 3, strong links in B3 and B9 => R5C2 <> 3

Turbot Fish with 5, strong links in diagonals R1C3-R9C2 and R1C8-R9C9 => R7C3 <> 5

Turbot Fish with 8, strong links in B5 and B9 => R4C2 <> 8

Box-Diagonal interaction between B4 and diagonal R1C6-R9C7 => R1C6 <> 8

Pointing Pair R1C8-R6C4 in diagonal R1C8-R9C7 => R1C9 <> 8

Box-Diagonal interaction between B3 and R1C8-R9C9 => R3C6 <> 8

Generalized X-Wing with 8, strong links in diagonals R1C6-R9C5, R1C8-R9C7 and weak links in B3 and diagonal R1C9-R9C1 => R8C2 <> 8

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469126751

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