Problems by Gordon V. Cormack

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Adventures in Moving -- Part IV 1705 379 22% 0.00 323 269 83% 4.6
Average Speed 1431 485 34% 0.00 488 407 83% 3.4
Babelfish 11082 4863 44% 0.01 3910 3483 89% 2.3
Beat the Spread! 4554 1680 37% 0.00 1385 1234 89% 2.3
Billiard 2200 1234 56% 0.00 1140 1087 95% 1.7
Biometrics 235 76 32% 0.00 72 56 78% 7.0
Calories From Fat 1136 617 54% 0.00 524 487 93% 2.0
CD 39438 8837 22% 0.00 5256 3835 73% 5.0
Celebrity Split 509 108 21% 0.13 89 56 63% 7.8
Combination Lock 2319 1012 44% 0.00 983 853 87% 2.5
Conformity 5687 2616 46% 0.00 1883 1771 94% 1.6
Councilling 1249 192 15% 0.03 161 119 74% 6.9
Cousins 43 14 33% 0.00 17 12 71% 5.9
Equations 520 123 24% 0.00 99 76 77% 5.5
Evil Straw Warts Live 592 199 34% 0.00 163 141 87% 3.7
Factstone Benchmark 1275 549 43% 0.00 470 371 79% 4.2
Ferry Loading III 2593 683 26% 0.01 529 444 84% 3.8
Ferry Loading V 183 73 40% 0.00 54 45 83% 4.6
Genealogical Research 819 136 17% 0.00 136 107 79% 3.7
Guessing Game 3644 1075 30% 0.00 1083 928 86% 2.7
Help! 3112 446 14% 0.00 381 264 69% 6.2
Intellectual Property 170 48 28% 0.04 31 17 55% 8.9
Jack and Jill 244 81 33% 0.19 39 25 64% 8.5
Life Forms 1135 203 18% 0.07 159 83 52% 7.8
Mall Mania 378 124 33% 0.03 102 83 81% 5.3
Map 178 30 17% 0.00 43 23 53% 7.6
Paintball II 381 100 26% 0.00 85 62 73% 3.9
Perfect Pth Powers 8893 1356 15% 0.00 1103 804 73% 5.4
Prerequisites? 738 463 63% 0.00 416 397 95% 1.9
Pseudoprime numbers 1419 584 41% 0.00 509 450 88% 3.3
Rinse 101 18 18% 0.00 27 17 63% 7.9
Rocket Stages 218 42 19% 0.03 32 19 59% 4.1
Rock-Paper-Scissors Tournament 5856 1470 25% 0.02 1165 951 82% 3.9
Russian Dolls 1242 34 3% 0.00 66 25 38% 8.5
Structural Equivalence 17 6 35% 0.00 9 6 67% 5.7
Subway 346 115 33% 0.00 117 99 85% 5.0
Tautology 835 384 46% 0.00 294 263 89% 3.4
Test 99 54 55% 0.00 38 31 82% 6.0
The Trip, 2007 905 338 37% 0.01 262 238 91% 2.9
Tour de France 1597 557 35% 0.00 537 471 88% 2.9
Tournament 43 6 14% 0.04 11 6 55% 7.5
Treasure Map 203 85 42% 0.01 68 57 84% 5.3
Treequivalence 56 20 36% 0.00 23 19 83% 6.4
War on Weather 282 129 46% 0.00 127 114 90% 3.5
WFF 'N PROOF 691 272 39% 0.00 263 234 89% 2.8
XYZZY 1947 338 17% 0.01 301 212 70% 6.7