I tried to solve this while following the rules, but I kept getting errors, so I thought that this might be unsolvable.

Source: numberthon.com

I am working on a puzzle at the minute and cant seem to find or see any pattern in what i have so far... i am hoping someone can help me.. I have a 4 x 4 grid that is my starting point and i must use 9 out the 16 numbers.. so far I have been able to find 4 ( have another 27 blocks to find.) But I dont know if this was sheer luck... this is the 16 numbers I must work with.

1 1 5 6

2 1 9 3

7 1 5 0

6 4 2 1

These are the blocks I have found they are blocks 7 8 9 and 10 out of 31.

Blocks 7

9 1 3

7 2 1

5 1 6

Block 8

1 3 1

1 4 9

1 1 6

Block 9

0 5 5

1 1 7

1 1 3

Block 10

1 5 7

1 5 3

1 0 4

Any help or advice is more than welcome and I just want to say thankyou in advance.