Would you like to use Neighbours puzzles in your publication?
I can provide Neighbours puzzles in the sizes and difficulties listed below, in any print size, and at any resolution, and in most print formats (including TIFF, PNG, JPG, PDF, etc). Please feel free to contact me to discuss your requirements for Neighbours puzzles in more detail, and if required I'll send you some printable samples.
4 x 4 - Level 1
5 x 5 - Level 1 - Level 2
6 x 6 - Level 1 - Level 2
7 x 7 - Level 1 - Level 2
9 x 9 - Level 1
Can you complete the grid and satisfy the neighbour symbols?
Complete the grid such that every row and column contains every number exactly once. The symbols on the grid indicate neighbours (e.g. 1 >< 2, 3 >< 4, 2 >< 1). Rule 1 - a symbol between = the numbers are neighbours. Rule 2 - NOT a symbol between = the numbers are NOT neighbours. What are the symbols for? The symbols are double arrows that point to two numbers that are neighbours of each other, e.g. 1><2, 3><2, 3><4.
This is the start of the puzzle. This example highlights the importance of the lack of a neighbour symbol.
Because the <1> has no neighbour symbols, these squares in this row cannot be <2>.
Because neither <1> has a neighbour symbol, these squares in this column cannot be <2>.
Because the <2> has a neighbour symbol, this square must be either <1> or <3>. However, there is already a <1> in both the row and column, therefore this square is the <3>.
This row and column can now be completed.
As neither the <2> nor the <4> has a neighbour symbol, these squares cannot be <3>.
This square cannot be <4>, and the row can be completed.
There is already a <4> in this row, so the <4> for this column can't go in this square, and the column completes.
Because the <1> has no neighbour symbol, this square cannot be <2>. The puzzle quickly completes.
The completed puzzle.
This square has to be <3> because of the neighbour symbol next to the <4>.
This square CANNOT be <3> because there isn't a neighbour symbol next to the <4>.
Because of the given <2> and the neighbour symbol, A can only be <1> or <3>. Therefore B could be <2> or <4> - however, B can't be 4 as the <5> has no neighbour symbol. So B must be <2> (and A is either <1> or <3>).