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Magic Squares of Singly Even Orders Mystery Cache

Hidden : 6/6/2003
Difficulty:
4 out of 5
Terrain:
1.5 out of 5

Size: Size:   micro (micro)

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Geocache Description:

A cache that shows, by example, how to create magic squares with a singly even count of numbers (cells) in each row and column.

The coordinates at the top of this page aren’t the actual coordinates of the cache! For example, the cache isn’t on the lake, it’s in a suburban park. You must determine the actual coordinates by solving the puzzle given below. Note: not even the degrees and minutes listed above are guaranteed to be correct. However, the actual cache location is within a 3.5 mile radius of the given coordinates.

A magic square is a grid of numbers where the numbers in each row, column and the two main diagonals sum up to the same value.

This cache is the third in a series of three which will, when completed, show you how to create magic squares of any number of cells per side. It is strongly suggested that you solve the caches in order. In particular, you’ll have a much easier time solving this cache if you have solved the first in the series.

This cache will show you how to create magic squares of an singly even order, which means that the count of numbers in each row or column of the square is the same multiple of two, that is not also divisible by 4 (6, 10, 14, 18, etc.). The first magic square cache describes how to create squares of any odd order (1, 3, 5, 7, etc.) and the second cache describes how to create squares of a doubly even order (4, 8, 12, 16, etc.) There is no magic square of order 2.

The cache itself is a black 35mm film canister, with a flack black lid on one end. A gift of Marky and Joani, it contains a log sheet and a pen, as well as a few assorted small trade items.

Note: The cache is located inside a suburban park. This park is close to a freeway, which is separated from the park by a tall concrete sound barrier like you find across the South Bay. The cache is right near the freeway wall. You don't need to go near the freeway itself to get the cache! The park is fully accessible from a suburban street.


Instructions

Examine the 18x18, 10x10 and 6x6 squares shown below. Once you’ve detected a pattern in the way the numbers are placed in the squares, you should find it easy enough to create a 14x14 magic square. We’ve filled in some of the numbers to help you check your work. When you’ve completed the square, take the values in the yellow squares and concatenate them to form the latitude and longitude of the cache.

You will be teaching yourself the “LUX method” for constructing magic squares. This was described by John H. Conway, the same person who created the very famous “Game of Life” simulation that you can find on virtually every computing platform and operating system.

Note: It is possible to create multiple valid 14x14 squares. However, you’re looking for one that follows the pattern shown in the 18x18, 10x10 and 6x6 magic squares.

Unlike the other two puzzles, where no construction hints were given, this time three hints for building these squares are given in the encrypted hints, as is one hint for finding the cache at the actual location. The cache rating given assumes you do not look at the hints! They are really a spoiler...


The 18x18, 10x10 and 6x6 Magic Square Examples
188 185 232 229 276 273 320 317 4 1 48 45 92 89 136 133 180 177
186 187 230 231 274 275 318 319 2 3 46 47 90 91 134 135 178 179
228 225 272 269 316 313 36 33 44 41 88 85 132 129 176 173 184 181
226 227 270 271 314 315 34 35 42 43 86 87 130 131 174 175 182 183
268 265 312 309 32 29 40 37 84 81 128 125 172 169 216 213 224 221
266 267 310 311 30 31 38 39 82 83 126 127 170 171 214 215 222 223
308 305 28 25 72 69 80 77 124 121 168 165 212 209 220 217 264 261
306 307 26 27 70 71 78 79 122 123 166 167 210 211 218 219 262 263
24 21 68 65 76 73 120 117 161 164 208 205 252 249 260 257 304 301
22 23 66 67 74 75 118 119 162 163 206 207 250 251 258 259 302 303
61 64 105 108 113 116 157 160 204 201 245 248 253 256 297 300 17 20
62 63 106 107 114 115 158 159 202 203 246 247 254 255 298 299 18 19
101 104 109 112 153 156 197 200 241 244 285 288 293 296 13 16 57 60
103 102 111 110 155 154 199 198 243 242 287 286 295 294 15 14 59 58
141 144 149 152 193 196 237 240 281 284 289 292 9 12 53 56 97 100
143 142 151 150 195 194 239 238 283 282 291 290 11 10 55 54 99 98
145 148 189 192 233 236 277 280 321 324 5 8 49 52 93 96 137 140
147 146 191 190 235 234 279 278 323 322 7 6 51 50 95 94 139 138
68 65 96 93 4 1 32 29 60 57
66 67 94 95 2 3 30 31 58 59
92 89 20 17 28 25 56 53 64 61
90 91 18 19 26 27 54 55 62 63
16 13 24 21 49 52 80 77 88 85
14 15 22 23 50 51 78 79 86 87
37 40 45 48 76 73 81 84 9 12
38 39 46 47 74 75 82 83 10 11
41 44 69 72 97 100 5 8 33 36
43 42 71 70 99 98 7 6 35 34
32 29 4 1 24 21
30 31 2 3 22 23
12 9 17 20 28 25
10 11 18 19 26 27
13 16 36 33 5 8
14 15 34 35 6 7

The 14x14 Magic Square Problem
                  A        
                           
                           
                           
                           
                           
E           97              
            C              
              F            
                           
                  B   D    
                           
      124           G        
                           

Additional Hints (Decrypt)

Qvivqr gur ovt fdhner vagb n tevq bs 2k2 "ahzore oybpxf". Gurfr ner rnpu ohvyg jvgu 4 frdhragvny ahzoref. Oybpx ahzore beqrevat sbyybjf rknpgyl gur frdhrapr hfrq jura ohvyqvat bqq beqre zntvp fdhnerf. Gur 1fg 4 ahzoref ner va gur zvqqyr-gbc 2k2 oybpx, gura gur 2aq 4 ahzoref ner va gur obggbz bs gur pbyhza whfg gb gur evtug bs gung, rgp. Abj gb svyy va gur ahzoref va rnpu oybpx. Sbe ersrerapr, pbafvqre rnpu 2k2 oybpx gb unir AR/AJ/FR/FJ fcnprf gung ner svyyrq va jvgu gur sbhe frdhragvny ahzoref. Gurer ner guerr frdhraprf bs ahzoref gung ner hfrq gb svyy n oybpx jvgu ahzoref. Y frdhrapr: AR/FJ/FR/AJ. H: AJ/FJ/FR/AR. K: AJ/FR/FJ/AR.Yrg'f pnyy gur ahzore bs 2k2 ahzore oybpx ebjf o.Gnxr (o+1)/2. Guvf gryyf lbh gur ahzore bs Y-frdhraprq oybpx ebjf ng gur gbc bs gur fdhner. Sbe gur beqre 10 fdhner, o=5, fb gung'f 3 Y oybpx ebjf.Nsgre guvf, gurer'f 1 oybpx ebj hfvat cnggrea H.Nyy erznvavat oybpx ebjf hfr gur K cnggrea. Sbe beqre 10, gung zrnaf 1 K oybpx ebj. Gur 14k14 fdhner unf o=7. Fb, 4 Y oybpx ebjf, 1 H oybpx ebj, naq 2 K oybpx ebjf.Gur beqre 6 fdhner unf o=3. Fb, 2 Y oybpx ebjf, 1 H oybpx ebj, naq ab K oybpx ebjf.Gurer vf na rkprcgvba va gur ynfg Y naq svefg H oybpx ebjf. Va gur ynfg Y oybpx ebj gur zvqqyr 2k2 oybpx hfrf cnggrea H. Va gur svefg H oybpx ebj, gur zvqqyr 2k2 oybpx hfrf cnggrea Y.Ybpngvba Uvag: Onfr bs ynzc-cbfg haqre zrgny pbire.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)