-
```
The 13th puzzle in the Easy group is unsolveable.
Opening the puzzle from fresh, the centre block is missing (3,5,7)
The 7 can only go in the centre position of this block.
Now there is no posit…
-
```
The 13th puzzle in the Easy group is unsolveable.
Opening the puzzle from fresh, the centre block is missing (3,5,7)
The 7 can only go in the centre position of this block.
Now there is no posit…
-
```
The 13th puzzle in the Easy group is unsolveable.
Opening the puzzle from fresh, the centre block is missing (3,5,7)
The 7 can only go in the centre position of this block.
Now there is no posit…
-
```
The 13th puzzle in the Easy group is unsolveable.
Opening the puzzle from fresh, the centre block is missing (3,5,7)
The 7 can only go in the centre position of this block.
Now there is no posit…
-
```
The 13th puzzle in the Easy group is unsolveable.
Opening the puzzle from fresh, the centre block is missing (3,5,7)
The 7 can only go in the centre position of this block.
Now there is no posit…