After completing the The Stern-Brocot Number System problem the other day, I pondered which problem to solve next.

So I created a Excel spreadsheet to hold all 112 problems, and then sorted it by number of Users Solved to see the most solved puzzles.

Table below:

Number | Name | Users Submitted | Users Solved | % Users | Done

—|—|—|—|—|—|–

110101 | The 3n+1 problem | 9546 | 6059 | 63% | 1

110102 | Minesweeper | 5745 | 3781 | 66% | 1 |

110201 | Jolly Jumpers | 2882 | 2066 | 72% | 1

110103 | The Trip | 3341 | 1644 | 49% | 1

110104 | LC-Display | 2559 | 1592 | 62% | 1

110401 | Vito’s Family | 1584 | 1234 | 78% | 1

110203 | Hartals |1316 | 1189 | 90% |1

110502 | Reverse and Add | 1198 |968 | 81% | 1

110501 | Primary Arithmetic | 1187 | 908 | 76% | 1

110106 | Interpreter | 1253 | 872 | 70% | 1

110107 | Check The Check | 1077 | 739 | 69% | 1

110301 | WERTYU | 1389 | 730 | 53% | 1

110105 | Graphical Editor | 1523 | 704 | 46% | 1

110303 | Common Permutation | 1019 | 692 | 68% | 0

110901 | Bicoloring | 836 | 690 | 83% | 0

110701 | Light. More light | 923 | 667 | 72% | 1

110504 | Ones | 748 | 629 | 84% | 1

110302 | Where’s Waldorf? | 803 | 615 | 77% | 0

110108 | Australian Voting | 947 | 564 | | 60% | 1

110405 | Shoemaker’s Problem | 731 | 564 | 77% | 1

110202 | Poker Hands | 769 | 528 | 69% | 1

110404 | Longest Nap | 649 | 490 | 76% | 1

110402 | Stacks of Flapjacks | 716 | 489 | 68% | 0

110505 | A multiplication game | 595 | 488 | 82% | 0

110205 | Stack ‘em Up | 610 | 455 | 75% | 0

110608 | Steps | 510 | 437 | 86% | 0 |

110207 | Contest Scoreboard | 700 | 417 | 60% | 1

110704 | Factovisors | 690 | 412 | 60% | 0

111001 | Freckles | 554 | 401 | 72% | 0

110601 | How many Fibs? | 545 | 378 | 69% | 0

110603 | Counting | 488 | 378 | 77% | 0

111105 | Cutting Sticks | 463 | 354 | 76% | 0

110304 | Crypt Kicker II | 562 | 350 | 62% | 0

110903 | The Tourist Guide | 473 | 337 | 71% | 1

110801 | Little Bishops | 526 | 332 | 63% | -1

111301 | Dog and Gopher | 424 | 327 | 77% | 0

111201 | Ant on a Chessboard | 352 | 323 | 92% | 0

110607 | Selfdescribing Sequence | 370 | 310 | 84% | 0

110902 | Playing with Wheels | 408 | 301 | 74% | 0

110306 | File Fragmentation | 406 | 284 | 70% | 1

110507 | The Stern-Brocot Number System | 308 | 276 | 90% | 1

110703 | Euclid problem | 365 | 272 | 75% | 0

111103 | Weights and Measures | 328 | 260 | 79% | 0

110204 | Crypt Kicker | 557 | 255 | 46% | 0

110305 | Automated Jude Script | 388 | 247 | 64% | 0

110503 | The Archeologists’s Dilemma | 429 | 215 | 50% | 0

110206 | Erdos Numbers | 508 | 212 | 42% | 1

110506 | Polynomial coefficients | 240 | 210 | 88% | 0

110706 | Smith Numbers | 263 | 199 | 76% | 0

110908 | Hanoi Tower Troubles Again! | 221 | 199 | 90% | 0

111104 | Unidirectional TSP | 342 | 185 | 54% | 0

111204 | Bee Maja | 198 | 172 | 87% | 0

110403 | Bridge | 606 | 162 | 27% | 0

110805 | Tug of War | 318 | 142 | 45% | 1

110406 | CDVII | 204 | 140 | 69% | 1

110602 | How Many Pieces of Land? | 263 | 139 | 53% | 0

111102 | Distinct Subsequences | 286 | 138 | 48% | 0

111303 | The Knights Of the Round Table | 202 | 126 | 62% | 0

110606 | The Priest Mathenmatician | 219 | 121 | 55% | 0

111302 | Rope Crisis in Ropeland | 166 | 113 | 68% | 1

110604 | Expressions | 206 | 108 | 52% | 0

110407 | ShellSort | 333 | 107 | 32% | 0

110705 | Summation of Four Primes | 261 | 105 | 40% | 0

110707 | Marbles | 227 | 98 | 43% | 0

111207 | Dermuba Triangle | 117 | 96 | 82% | 0

111306 | The Largest/Smallest Box.. | 154 | 93 | 60% | 0

110408 | Football (aka Soccer) | 293 | 88 | 30% | 0

110803 | Queue | 127 | 85 | 67% | 0

110806 | Garden of Eden | 137 | 84 | 61% | 0

111006 | Tourist Guide | 165 | 83 | 50% | 0

111402 | The Cloest Pair Problem | 191 | 82 | 43% | 0

110508 | Pairsumonious Numbers | 122 | 80 | 66% | 0

110702 | Carhichael Numbers | 526 | 78 | 15% | 0

110905 | Edit Step Ladders | 173 | 74 | 43% | 0

110904 | Slash Maze | 97 | 74 | 76% | 0

110308 | Fmt | 155 | 72 | 46% | 1

111206 | (2/3/4)-D Sqr/Rects/Cubes/Boxes ? | 75 | 64 | 85% | 0

111202 | The Monocycle | 70 | 54 | 77% | 0

111003 | Fire Station | 156 | 53 | 34% | 0

111108 | Adventures in Moving - Part IV | 93 | 53 | 57% | 0

110208 | Yahtzee | 168 | 50 | 30% | 1

111308 | How Big Is It? | 79 | 48 | 61% | 1

111107 | Chopsticks | 76 | 48 | 63% | 0

110907 | From Dusk Till Dawn | 99 | 47 | 47% | 0

111401 | Herding Frosh | 83 | 44 | 53% | 0

111407 | Trees on My Island | 56 | 43 | 77% | 0

110708 | Repackaging | 62 | 37 | 60% | 0

111405 | Useless Tile Packers | 48 | 32 | 67% | 0

110804 | Servicing Stations | 121 | 30 | 25% | -1

111004 | Railroads | 59 | 27 | 46% | 0

111304 | Chocolate Chop Cookies | 41 | 27 | 66% | 0

111205 | Robbery | 37 | 25 | 68% | 0

111404 | Hotter Colder | 34 | 25 | 74% | 0

110605 | Complete Tree labeling | 51 | 23 | 45% | 0

110807 | Color Hash | 42 | 23 | 55% | 0

111208 | Airlines | 33 | 22 | 67% | 0

111307 | Is This Integration? | 150 | 21 | 14% | 0

110307 | Doublets | 301 | 20 | 7% | -1

111403 | Chainsaw Massacre | 42 | 20 | 48% | 0

111203 | Star | 43 | 16 | 37% | 0

111408 | Nice Milk | 25 | 15 | 60% | 0

111106 | Ferry Loading | 90 | 8 | 9% | 0

111005 | War | 111 | 3 | 3% | 0

111406 | Radar Tracking | 8 | 2 | 25% | 0

111305 | Birthday Cake | 89 | 1 | 1% | 0

111101 | Is Bigger Smarter? | 602 | 0 | 0% | 0

111002 | The Necklace | 252 | 0 | 0% | -1

110802 | 15-Puzzle Problem | 157 | 0 | 0% | 0

111007 | The Grand Dinner | 154 | 0 | 0% | 0

110906 | Tower of Cubes | 95 | 0 | 0% | 0

111008 | The Problem with the Problem Setter | 49 | 0 | 0% | 0

110808 | Bigger Square Please | 30 | 0 | 0% | 0

I then decided to tackle Vito’s Family and Primary Arithmetic (which in the original listing where not completed), and will write them up shortly. After that I’ll slowly work my why through the list, updating the above table as I go.

The -1 in the done column means submitted solutions, but not yet solved.