Problems

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Problem Name Code Points Users AC Rate Date Added
WC95 - Round Numbers wc95p2 15p 25 5.90% 2008-09-29
WC95 - Smallest Latin Square wc95p3 10 38 36.43% 2008-09-29
WC95 - Factorial Power wc95p5 5 73 24.66% 2008-09-29
WC95 - Coded Message wc95p1 7 46 9.84% 2008-09-29
WC95 - Wildcard wc95p4 10 21 36.49% 2008-09-29
WC96 - Fishes in a Tank wc96p1 5 30 22.98% 2008-09-29
WC96 - Row and Column wc96p2 7 27 12.21% 2008-09-29
WC96 - Hidden Geography wc96p3 5 93 29.20% 2008-09-29
WC96 - Plentiful Paths wc96p5 10 147 34.16% 2008-09-30
WC96 - Bases Multiplication wc96p6 5 88 31.64% 2008-09-29
WC97 - Searching Quickly wc97p1 10 9 22.50% 2008-09-28
WC97 - Encoding Grid wc97p5 20 1 6.25% 2008-09-28
WC97 - Power of Cryptography wc97p2 20 12 13.83% 2008-09-28
WC97 - Stacks of Flapjacks wc97p3 15p 2 8.57% 2008-09-28
WC97 - Typing wc97p4 5 190 28.48% 2008-09-28
WC98 - Optical Recognition wc98p1 10 3 60.00% 2008-09-29
WC98 - The Hutts Strike Back wc98p2 10 5 46.67% 2008-09-29
WC98 - GATTACA wc98p4 20p 6 11.43% 2008-09-29
WC98 - Y2K wc98p5 10 26 34.29% 2008-09-29
WC98 - Return of the Plachta wc98p6 10 118 22.04% 2008-09-29
WC98 - Do or Do Not wc98p3 10 17 39.53% 2008-09-29
WC99 - The Matrix wc99p1 5 29 33.61% 2008-09-29
WC99 - Mission Impossible wc99p2 10 51 19.46% 2008-09-29
WC99 - The Godfather wc99p3 10 24 31.25% 2008-09-29
WC99 - Goldfinger wc99p4 10 74 31.21% 2008-09-29
WC99 - Good Will Hunting wc99p5 10 75 18.04% 2008-09-29
WC99 - Fight Club wc99p6 10 27 26.36% 2008-09-29
WC99 - The Rock wc99p7 15 26 26.40% 2008-09-28
WC99 - S - World wc99Sp1 25p 23 15.79% 2008-10-07
WC99 - S - Message wc99Sp3 25 5 75.00% 2008-09-29
WC99 - S - Good Ethan Hunt wc99Sp4 25 11 15.57% 2008-09-30
WC99 - S - Star Wars wc99Sp5 25 11 42.86% 2008-10-01
WC99 - S - Wedding Juicer wc99Sp6 25 31 16.39% 2008-09-28
WC99 - S - Good Hunting Will wc99Sp2 20p 1 0.45% 2008-10-19
WC01 - The Rock wc01p1 7 14 90.48% 2008-11-23
WC01 - The Island Of Dr. Strangelove wc01p2 10 4 31.58% 2008-11-23
WC01 - Back to the Future wc01p3 5 93 61.35% 2008-11-23
WC01 - Cool Runnings wc01p4 10 15 25.71% 2008-11-23
WC01 - The Man With The Golden Eye wc01p5 10 12 14.29% 2008-11-23
WC01 - Mission Impossible 3 wc01p6 10p 59 9.70% 2008-11-23
WC01 - The Sixth Sense wc01p7 15 3 14.81% 2008-11-25
WC01 - Time to Get Medieval wc01p8 10 29 35.33% 2008-11-23
WC01 - The Thirteenth Floor wc01p9 20 4 19.05% 2008-11-23
WC01 - S - Survivor wc01Sp1 10 10 15.38% 2008-12-05
WC01 - S - Temptation Island wc01Sp2 10 22 27.78% 2008-12-05
WC01 - S - Big Brother wc01Sp4 20 4 6.58% 2008-12-05
WC01 - S - The Mole wc01Sp5 20p 7 36.00% 2008-12-05
WC01 - S - Blind Date wc01Sp6 20p 6 20.00% 2008-12-05
WC01 - S - Regis wc01Sp3 7 25 21.43% 2008-12-05
WC02 - A Planning Session wc02p1 5 48 15.09% 2008-09-30
WC02 - The Final Battle wc02p10 10 14 21.62% 2008-09-30
WC02 - Cow-bot wc02p2 10 41 21.45% 2008-09-30
WC02 - It's Party Time wc02p4 5 69 25.17% 2008-09-30
WC02 - Intercepted Cowmmunication wc02p5 5 46 35.66% 2008-09-30
WC02 - Obstacles Galore wc02p6 10 11 15.29% 2008-09-30
WC02 - Old Macdonald's Farm wc02p7 10 28 27.54% 2008-09-30
WC02 - S - Dark Lord wc02Sp1 25 16 13.38% 2008-10-05
WC02 - S - Klingon Roulette wc02Sp2 25 5 15.00% 2008-10-09
WC02 - S - Evil Tasks wc02Sp3 25 2 33.33% 2008-10-09
WC02 - The Big Book of Recipes wc02p3 10 3 3.95% 2008-09-30
WC02 - Deploying Troops wc02p8 10 40 28.51% 2008-09-30
WC02 - A Nerd's Preparation wc02p9 20p 2 1.39% 2008-10-01
WC02 - S - The Spell of Lord Ruru wc02Sp4 25 4 18.92% 2008-10-05
WC02 - S - The Mines of Moria wc02Sp5 25 1 5.26% 2008-10-10
Strategy Meeting wc07p3 10p 41 13.78% 2010-08-26
BitStrings wc07p5 10p 24 28.13% 2010-08-25
Drain Game wc07p4 15p 8 11.40% 2010-08-31
WC15 #1 - Do You Know Your Woburn Colours? wc151j1 3 255 38.68% 2015-10-17
WC15 #1 - Grouping Recruits wc151j2 5 117 29.42% 2015-10-17
WC15 #1 - Jazz Concert wc151j3 5 147 45.38% 2015-10-17
WC15 #1 - Trip Budgeting wc151j4 10 30 8.91% 2015-10-17
WC15 #1 - Woburn Workload wc151s1 7 101 40.74% 2015-10-17
WC15 #1 - Wildcat Wildcards wc151s2 10p 42 8.42% 2015-10-17
WC15 #1 - Contest Sites wc151s3 17p 31 7.47% 2015-10-17
WC15 #1 - Chocolate Milk wc151s4 20p 30 27.62% 2015-10-17
WC15 #2 - A New Hope wc152j1 3 187 48.46% 2015-12-12
WC15 #2 - The Empire Strikes Back wc152j2 5 139 67.91% 2015-12-12
WC15 #2 - Return of the Jedi wc152j3 5 52 21.32% 2015-12-12
WC15 #2 - The Force Awakens (Junior) wc152j4 15p 9 2.00% 2015-12-12
WC15 #2 - The Phantom Menace wc152s1 7 83 42.48% 2015-12-12
WC15 #2 - Attack of the Clones wc152s2 12p 20 8.33% 2015-12-12
WC15 #2 - Revenge of the Sith wc152s3 15p 22 11.63% 2015-12-12
WC15 #2 - The Force Awakens (Senior) wc152s4 30p 9 7.11% 2015-12-12
WC15 #3 - Battle Predictions wc153j1 3 116 39.67% 2016-02-13
WC15 #3 - Electroshock Therapy wc153j2 5 67 47.30% 2016-02-13
WC15 #3 - Red Sun Simulator wc153j3 10p 21 7.44% 2016-02-13
WC15 #3 - LexCorp Infiltration wc153j4 15p 13 11.43% 2016-02-13
WC15 #3 - Energy Absorption wc153s1 7p 31 12.74% 2016-02-13
WC15 #3 - Detective Work wc153s2 10 32 33.00% 2016-02-13
WC15 #3 - Rescue Mission wc153s3 15p 14 17.00% 2016-02-13
WC15 #3 - Lex Luthor's Landmines wc153s4 30p 8 4.62% 2016-02-13
WC15 #4 - Telling Time wc154j1 3 89 53.59% 2016-04-08
WC15 #4 - Mission Briefing wc154j2 7 71 38.19% 2016-04-08
WC15 #4 - Target Practice wc154j4 12p 27 20.88% 2016-04-08
WC15 #4 - Shootout wc154s1 7p 38 28.83% 2016-04-08
WC15 #4 - World Tour wc154s2 12p 27 34.44% 2016-04-08
WC15 #4 - Coded Paper wc154s3 17p 18 18.87% 2016-04-08
WC15 #4 - Stakeout wc154s4 20p 16 13.89% 2016-04-08
WC15 Finals - Vertical Posting wc15fj1 3 91 42.13% 2016-05-07
WC15 Finals - The Oxford Comma wc15fj2 5 24 11.74% 2016-05-07
WC15 Finals - Fuzzbiz wc15fs1 7p 15 20.69% 2016-05-07
WC15 Finals - Hydration wc15fs2 10p 21 20.77% 2016-05-07
WC15 Finals - Driving Range wc15fs3 15p 11 15.28% 2016-05-07
WC15 Finals - Server Hacking wc15fs4 20p 19 11.76% 2016-05-07
WC15 Finals - Supply Chain wc15fs5 30p 3 12.50% 2016-05-07
WC16 #1 - A Spooky Season wc161j1 3 161 57.65% 2016-10-16
WC16 #1 - Frankenstein's Monster wc161j2 5 51 7.61% 2016-10-16
WC16 #1 - Hide and Seek wc161s1 10p 28 10.00% 2016-10-16
WC16 #1 - Alucard's Quest wc161s2 10p 34 23.08% 2016-10-16
WC16 #1 - Tricky's Treats wc161s3 12p 23 24.37% 2016-10-16
WC16 #1 - TP wc161s4 12p 23 37.76% 2016-10-16
WC16 #2 - The Perfect Mate wc162j1 5 55 30.26% 2016-12-11
WC16 #2 - EHC wc162j2 7p 17 9.38% 2016-12-11
WC16 #2 - Most Illogical wc162s1 10p 41 41.28% 2016-12-11
WC16 #2 - Away Mission wc162s2 12p 23 19.53% 2016-12-11
WC16 #2 - Turbolift Testing wc162s3 15p 15 12.31% 2016-12-11
WC16 #2 - Diplomacy wc162s4 17p 11 12.62% 2016-12-11
WC16 #3 - The Elite N wc163j1 7p 21 16.55% 2017-02-19
WC16 #3 - Pokéwarehouses wc163j2 7p 7 7.41% 2017-02-19
WC16 #3 - Cutting Edge wc163s1 7p 22 8.99% 2017-02-19
WC16 #3 - Training Regimen wc163s2 12p 24 16.23% 2017-02-19
WC16 #3 - Puzzle Rooms wc163s3 15p 5 4.46% 2017-02-19
WC16 #3 - Replay Value wc163s4 15p 19 18.35% 2017-02-19
WC16 #4 - Anyone Can Be Anything wc164j1 5p 36 59.02% 2017-04-09
WC16 #4 - You're Dead! wc164j2 7p 21 24.72% 2017-04-09
WC16 #4 - Parking Duty wc164s1 10p 19 19.83% 2017-04-09
WC16 #4 - Pawpsicles wc164s2 12p 17 21.95% 2017-04-09
WC16 #4 - Night Howlers wc164s3 14p 14 24.42% 2017-04-09
WC16 #4 - Hopps and Wilde on the Case wc164s4 15p 15 12.06% 2017-04-09
WC16 Finals - Fencing wc16fj1 5p 25 56.82% 2017-05-07
WC16 Finals - Enigmoo wc16fj2 5p 12 22.67% 2017-05-07
WC16 Finals - Cow-Bot Construction wc16fs1 7p 19 37.29% 2017-05-07
WC16 Finals - Rational Recipes wc16fs2 10p 18 22.92% 2017-05-07
WC16 Finals - Privacy wc16fs3 12p 22 40.63% 2017-05-07
WC16 Finals - Bug Infestation wc16fs4 20p 10 12.99% 2017-05-07
WC16 Finals - Bovine Grenadiers wc16fs5 20p 4 9.20% 2017-05-07
WC17 #1 - Canadian Accent wc171j1 3 103 69.81% 2018-01-26
WC17 #1 - How's the Weather? wc171j2 3 93 56.65% 2018-01-26
WC17 #1 - Stanley wc171j3 5 83 50.60% 2018-01-26
WC17 #1 - Canuck Detection wc171j4 5p 51 37.38% 2018-01-26
WC17 #1 - On the Rocks wc171s1 7p 54 29.08% 2018-01-26
WC17 #1 - Ride the Rocket wc171s2 11p 24 31.65% 2018-01-26
WC17 #1 - Crosscountry Canada wc171s3 12p 20 30.00% 2018-01-26
WC17 #1 - Change wc171s4 16p 5 5.15% 2018-01-26
WC17 #2 - The Rings of Power wc172j1 3 43 83.93% 2018-02-23
WC17 #2 - Breeding an Army wc172j2 5 35 36.21% 2018-02-23
WC17 #2 - Escaping the Mines wc172j3 5 28 29.09% 2018-02-23
WC17 #2 - Entish Translation wc172j4 7p 13 16.98% 2018-02-23
WC17 #2 - Keeping Score wc172s1 10p 30 32.65% 2018-02-23
WC17 #2 - Don't Follow the Lights wc172s2 12p 21 38.60% 2018-02-23
WC17 #2 - Battle of the Pelennor FIelds wc172s3 13p 14 17.89% 2018-02-23
WC17 #2 - One Does Not Simply Walk Into Mordor wc172s4 16p 4 7.50% 2018-02-23
WC17 #3 - Like, Comment, and Subscribe! wc173j1 3 29 34.07% 2018-03-23
WC17 #3 - Certified Fresh wc173j2 5 16 28.57% 2018-03-23
WC17 #3 - Uncrackable wc173j3 5 16 31.48% 2018-03-23
WC17 #3 - Meme Generator wc173j4 7 9 13.04% 2018-03-23
WC17 #3 - Mutual Friends wc173s1 10p 17 23.68% 2018-03-23
WC17 #3 - GleamingProudChickenFunRun wc173s2 12p 7 4.83% 2018-03-23
WC17 #3 - Down for Maintenance wc173s3 15p 3 15.15% 2018-03-23
WC17 #3 - Relevant Results wc173s4 20p 2 8.89% 2018-03-23
WC17 #4 - Fight or Flight wc174j1 3 26 75.00% 2018-04-20
WC17 #4 - Anger Management wc174j2 5 21 48.98% 2018-04-20
WC17 #4 - The Infinity Stones wc174j3 5p 21 68.75% 2018-04-20
WC17 #4 - Efficiency wc174j4 7 20 38.81% 2018-04-20
WC17 #4 - Wakandan Sabotage wc174s1 11p 17 19.13% 2018-04-20
WC17 #4 - Strange Travels wc174s2 12p 20 42.86% 2018-04-20
WC17 #4 - Guardians of the Cash wc174s3 15p 6 11.29% 2018-04-20
WC17 #4 - Alpha Nerd wc174s4 18p 4 13.51% 2018-04-20
WC17 Finals - Cownterintelligence wc17fj1 5p 23 39.68% 2018-05-13
WC17 Finals - Redundant Formations wc17fj2 7p 11 13.85% 2018-05-13
WC17 Finals - An Interspecific Army wc17fs1 10p 27 83.33% 2018-05-13
WC17 Finals - Cowmmunication Network wc17fs2 12p 20 36.78% 2018-05-13
WC17 Finals - Explosive Ordinance Disposal wc17fs3 15p 7 18.35% 2018-05-13
WC17 Finals - Ultimatum wc17fs4 17p 6 9.46% 2018-05-13
WC17 Finals - Crop Rectangles wc17fs5 25p 1 1.28% 2018-05-13