4.sd 172 B

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  1. 4 0 0 0 5 1 0 0 0
  2. 0 0 0 0 0 7 0 0 1
  3. 7 0 0 0 0 0 3 0 0
  4. 0 0 0 0 0 0 0 6 0
  5. 0 8 0 0 6 0 0 0 0
  6. 0 0 0 1 8 9 0 0 4
  7. 2 1 0 0 0 0 0 5 0
  8. 8 0 0 0 0 0 7 0 6
  9. 0 0 0 0 7 0 4 0 0