Joined in 2023 
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It has 10 pieces that can be flipped/rotated and placed on a calendar. They claim there is a solution for each day/month/weekday combination. In the YouTube video Drew is struggling and says:
I found this puzzle the other week by Dragonfjord called A Puzzle Day. Basically you fit the pieces into a Tetris board but leave the current Mon and Day open. Since I also just bought a laser cutter, I thought I could program a solver for this puzzle and use that program to help me make new puzzles. The very first optimized brute force version of my program took about 8 minutes to find all solutions for a single day. After playing with pypy and multiprocessing I was able to get it down to about 2 minutes. That would still have taken well over 12 hours to find all solutions for every day. Eventually, I was lead down an interesting path of learning what Dancing Links and Algorithm X were and trying to wrap my head around it. I was finally able to get my program to find all solutions for all days in a little under 7m. In the end, I finished the program and ran some numbers that some of you might find interesting. There are almost 120 thousand ways the pieces fit in the frame, but finding the date you want can sometimes drive you crazy! (Some people decided it would be easier to change their birthdays instead!) Genius! Most puzzles you only solve once and you’re done. This puzzle is a new puzzle every day.” – Terry E. After that I just go through all possible piece/location combinations, placing the first puzzle piece in the top position and continuing down.About a month ago I was watching a YouTube video where YouTuber Drew Gooden was struggling with a “weird” puzzle: A-Puzzle-A-Day makes a great gift for your friends, family, coworkers and yourself! Warning! This puzzle is highly addictive! The below leaderboard updates every 10 minutes (manual refresh required). If you’re having issues, try a force refresh (shift+F5) We're starting with the most permissive criterias and then we'll be adding more and more restraints which will reduce the number of solutions.
There are no prizes or awards available, only bragging rights and the fun of discovering new places. Next I wrote the code to generate all the possible rotations of a certain puzzle piece (and eliminated duplicates). Some pieces have more rotations than others because some are the same after a 180 degree rotation, others are not. We are so excited to have “A-Puzzle-A-Day” available for you. This is one of the most fun and addicting puzzles we’ve ever offered. There is a different challenge for every single day of the year. That’s 365 puzzles for one low price, making “A-Puzzle-A-Day” one of the greatest values you’ll ever find. To solve this, I first encoded all the puzzle pieces, this is relatively easy to do because it’s just a 2D grid. A square shape with a hole made up of three shapes that can be rotated or flipped to provide eight or twelve solutions (perahps with an l-shape swap).
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After 25 hours, the country for that puzzle will be revealed, then 25 hours after that, the city will be revealed. When you solve the puzzle, don’t share the passcode in any channels, let other people enjoy solving the puzzles in their own time. However, you can help guide new agents on the right path. A-Puzzle-A-Day is a very fun and addictive puzzle that gives you a new challenge every single day of the year. All you need to do is fit these eight pieces into the calendar frame to leave one month and one day showing. Can you find your birthday? Your favorite holidays? Your anniversary? Today’s date? Every day you have a new puzzle! With varying criterias we have found more and less than 120 000 solutions but not anything close to specifically 120 000 solutions. To get on the leaderboard, fill in the form below with the passcode solved from the puzzle within 125 hours of the puzzle being released.
An expanded form of that where, with a flip of the t-shape the c- and b-shapes can be swapped, providing another round of solutions, up to twelve in total; We’re all missing the days when we used to be able to explore the portals of the world. Although it may still be a fair while until we are able to visit them in person again, we can still discover new places and learn a lot about them through the Intel map and Google Search. The solutions do not have to create a valid date. There can be two month gaps, two day gaps as well as invalid dates such as February 31 st.
After seeing how much fun the Ingress community has had solving the IngressFS@Home puzzles, we’ve brought together all the old puzzles so everyone can have a chance at exploring a new place in the world every day.
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