The New Sudoku Players' Forum

[HATMAN]

I will put all my other Rainbow Puzzles here.
The Rainbow Puzzles will often be Semi-Symmetric.

Rainbow:
The numbers are from 0-9.
There is a zero in every nonet, row and column. Zero was chosen as it increases the killer combinations, so I am sticking to it.
Each other number is missing from one and only one nonet, row and column.
For standard sudoku it is proven that the nonet is at the crossover of the row and column, this is not true for Jigsaws.

SemiSymmetric: there are five unknown pairs of numbers.
Opposite each cell number: the opposing number is itself or its partner.
At least one cell pair is required to be self-symmetric.
From this: r5c5 = 0 zero and its partner is missing in n5, r5 and c5.

Rainbow Vanilla SS Jigsaw 22 E
I liked this jigsaw shape from Urhegyi.
Check the crossover rule.
If you have not done Rainbows before do this one first - otherwise do not bother.



Very easy, about 0.7.

Rainbow Vanilla SS Jigsaw 22 H



Hard - assassin level, 1.2+

[HATMAN]

Rainbow Sindoku Semi-Symetric 26
The Rainbow Puzzles will often be Semi-Symmetric. This one is S-S.

Rainbow:
The numbers are from 0-9.
There is a zero in every nonet, row and column. Zero was chosen as it increases the killer combinations, so I am sticking to it.
Each other number is missing from one and only one nonet, row and column.
For standard sudoku it is proven that the nonet is at the crossover of the row and column, this is not true for Jigsaws.

SemiSymmetric: there are five unknown pairs of numbers.
Opposite each cell number: the opposing number is itself or its partner.
At least one cell pair is required to be self-symmetric.
From this: r5c5 = 0 zero and its partner is missing in n5, r5 and c5.[/size]

The clues are Sindoku
The clues are based on singletons i.e. a number with no adjacent numbers.
The clues at the corners refer to the four adjacent cells
If one number is given it is a singleton and the other three numbers are consecutive.
If two numbers are given they are singletons and the other two numbers are consecutive.
If the corner is blue all four numbers are singletons.
If the corner is pink there are two pairs of consecutive numbers.
If the corner is red there are four consecutive numbers.
if the corner is green there is a repeat number or perhaps two.
If no information is given at a corner nothing is implied.
I forgot to remind you that in all my puzzles 0 is consecutive to 9.


A straightforward start but then gets very difficult.