Challenge 5 - Crosswords

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Across
  1. 5. (M - T, 1 unique duplicate characters, 2 in total)
  2. 7. (C - N, no unique duplicate characters)
  3. 8. (S - R, no unique duplicate characters)
  4. 11. (B - M, 2 unique duplicate characters, 4 in total)
  5. 14. (I - N, no unique duplicate characters)
  6. 15. (F - T, no unique duplicate characters)
  7. 16. (A - A, 1 unique duplicate character, 2 in total)
  8. 17. (C - R, no unique duplicate characters)
  9. 18. (I - O, 1 unique duplicate characters, 2 in total)
Down
  1. 1. (U - E, 2 unique duplicate characters, 4 in total)
  2. 2. (S - P, no unique duplicate characters)
  3. 3. (C - L, 2 unique duplicate characters, 4 in total)
  4. 4. (C - E, 2 unique duplicate characters, 4 in total)
  5. 6. (P - E, 2 unique duplicate characters, 5 in total)
  6. 8. (S - N, no unique duplicate characters)
  7. 9. (V - T, no unique duplicate characters)
  8. 10. (V - N, 1 unique duplicate character, 2 in total)
  9. 12. (T - E, no unique duplicate characters)
  10. 13. (C - N, no unique duplicate characters)
  11. 19. (I - Y, no unique duplicate characters)