Set for the 2180 Winter Geolympix-a-Tron with the kind permission of The National Trust. It'll be 'fancy' on the day of the Mega so if you'd like to see it at its best - or if you intend to attempt The Letter/Box Challenge - you may wish to leave it until then.
A Puzzle-type Letterbox/Hybrid cache (please don't remove the ink pad or stamp; they're not swaps) - The cache is NOT at the given co-ords. You have to crack a puzzle or code first.
Method 1: Use some AANDs (Aluminium Alpha-Numeric Discs. There are around 4,000 in circulation) and go to:
N51° 4 [Aqua's C] . [Red's B] [Black's D] [Pink's G] '
W000° 3 [Forest's C] . [Blue's B] [Purple's F] [Bronze's A] '
Method 2: Solve this cache's twin (GC7R49R), and deduct 0.349 from the Northings and deduct 0.751 from the Westings to get the co-ords for this cache. Easy! This also works vice-versa, of course...
Method 3: Take the final digit of the year these mechanical creations made their public debut to calculate the final co-ords of this cache, using the following formula. There are larger versions in this cache's Gallery if you need a better look. Good luck!
The final is hidden at N51 4A.B W000 3C.DE where:
A=(30+31)-(22-5)
B=1x((2+3+4+6+8+32+33+34+35+36)-(20+21+23+24))
C=(28+7)-(14+15)
D=(9+10+12)x(19-29-11)
E=((((13+27)x17)+(18-25))x26)/16
Checksums:
1+2+3+4+5+6+7+8+9+10+11+12=61.
13+14+15+16+17+18+19+20+21+22+23+24=74.
25+26+27+28+29+30+31+32+33+34+35+36=60.
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(In literature)
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(Film serial, not later films)
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(Voice only)
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(Film version. I don't think it appears in the original 1967 novel)
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(In print, not the 1995 film)
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(You'd be bananas to get this wrong)
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(Careful! BFI public showings count)
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(Film portrayal, not the 1968 source novel)
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Please join us on Sun Aug 30th 2020 at
GC8C8C9 - GEOLYMPIX IV: STOWE 2020
"The Perfect Vision!"