GeekDad Puzzle of the Week: drowssorC Puzzle

DrowSsorc? Is this another RA Salvatore reference, like Arach-Tinilith? No, it’s actually just the word “crossword” as in “crossword puzzle,” backwards. Technically, this week’s GeekDad Puzzle of the Week is more of a cross-number puzzle, but then I won’t be able to make geek literature references…

DrowSsorc? Is this another RA Salvatore reference, like Arach-Tinilith? No, it’s actually just the word “crossword” as in “crossword puzzle,” backwards.  Technically, this week’s GeekDad Puzzle of the Week is more of a cross-number puzzle, but then I won’t be able to make geek literature references.

In any case, for your chance at this week’s $50 ThinkGeek gift certificate, simply correctly complete the cross-number puzzle below. Note, that just as the title is backwards, many of the clues (and corresponding answers) are also reversed, inverted, or somehow upside-down. For example, the clue for 30 Across reads “iP,” and may somehow be related to last Thursday’s dessert-based celebration.  Send your responses to Geekdad Central by end of day Friday, and good luck!

Across

0. ihP 5. Markov Number 9. Kaprekar Number 10. rebmuN tcefreP 12. Oxygen molecule 15. 22nd prime 16. Californium, 3x 18. Without mammaries @ 180° 22. base14(111)=? 24. (2^3)(5^2) 25. Sphenic palindrome 26. (ptth) deriuqeR noitacitnehtuA yxorP 28. Heinz 29. !5 (see 48 Down) 30. iP 31. Lucas number 33. 2(5^2) 34. Requested Range Not Satisfiable (http) 35. Unnilhexium 36. 3x(Sean Connery)^-1 38. No content (http) 40. Gallium 41. Twice 36 Across - 18 44. See 28 Across 45. How do I dial 911? 46. Bauer 48. Oil @ 180° 49. 5^2^2 51. 7^7 (rev) 52. Smallest sum of six distinct positive squares 53. Clinchfield, GA 54. e 56. n^n 59. (Life, universe, Everything) base 2 60. Kubrick / Clarke 63. gnihtyrevE, esrevinU, efiL 65. Highest cake number that fits 66. 5^11 71. (2^2)(3^4)(5^2) 72. Sparta! 73. Hillbillies @ 180°

| Down

0. ynneJ 1. "Transformers" + 1 millenium 2. Most popular model train scale 3. (3^4)rev 4. "Reversal Of Fortune" hits theaters 5. Blue vs. Kasparov 6. College savings plan 7. 43F (see 35 down) 8. Perfect Number 11. 11^5 13. Twice 27 down 14. Calling the President 17. 2000 FQ10 19. Google @ 180° 20. Loo @ 180° 21. flah/flah 23. 2^(2(3^2)) 27. 1/(George Lazenby) 32. Calling the First Lady 33. Not Implemented (http) 35. F56 36. A168595 37. 27 Down + 36 Across 39. n^n 42. (rebmun s'eulc siht)/1 43. 20th prime 47. 5/(Roger Moore) 48. 6! 50. Sphenic, consecutive digits 51. Oboe @ 180° 55. Centered heptagonal number 56. Smyrna, GA 57. Perfect vision 58. Conflict (http) 59. F? = 89 61. Leet 62. Arp 87 (either galaxy) 64. 2^(3(2^2)) 67. Maine 68. Fn, where Fn = n^2 69. Sum of first 18 primes 70. Hercules (aircraft) 74. (etihW dna kclaB lcni) nomekop fo rebmun

<hr>*** Oagain, good luck, and my apologies for this being slightly tardy — proofing this type of puzzle is a challenge unto itself!</p>