As we say “goodbye” to one of the worst years in recent memory, we at Puzzle Prime are looking forward to a more prosperous and fun 2021. For that reason, we decided to launch the new year with our third puzzle tournament, which will be organized on January 31, Sunday.
This time, we will collaborate with other talented puzzle creators to bring you a large variety of unique and challenging puzzles. To register for the tournament, simply fill the form below.
You can check out our previous puzzle tournaments HERE and HERE.
Puzzle Prime’s second puzzle tournament was organized on June 27, 2020. Congrats to Elyot G. who solved all the puzzles! You can see the problems and the rankings below.
You have 60 minutes to solve 6 puzzles, each worth 1 point. Upload your solutions as a pdf, document, or image, using the form below. Good luck!
Time for work: 1 hour
Puzzle Prime Knight
Start from a square with a P on the chessboard, and keep jumping via knight’s move, consequently landing on squares with the letters U-Z-Z-L-E-P-R-I-M-E.
Point of View
8 of these diagrams correspond to views of the object in the corner when it is looked from different perspectives. Which 2 aren’t?
Note: The projections below are parallel (not perspective).
Choose a chess piece on the board. Then, move the piece to a cell with another piece, and remove the first piece. Repeat, by moving the second piece to a cell with a new piece, and removing it. Continue until there is only one piece remaining on the board.
Note: For example, we can move the Queen on d2 to the Bishop on b2, the Knight on c3, or the Bishop on d4. If we move the Queen to d4 and remove it from the board, then we must move the Bishop on d4. The only available cell is c3, where a Knight is positioned. We must remove the bishop and move the Knight on c3 either to the Rook on b1 or the Rook on a2…
On April 5, 2013 (5.4.2013), the digits used for expressing the date were all different and consecutive. When was the last date before it with this property?
Remark: The digits 9 and 0 are not consecutive.
Splitting the Area
You have 1 square with side length 1 and 2 circles with diameter length 1. Draw a single line so that the resulting areas on the left and on the right of the line are equal.
Notes: You need to specify how you find a line satisfying the condition above.
The starting and ending positions of 7 chess pieces are shown on the board. Find the trajectories of the pieces, if you know that they do not overlap and completely cover the board.
Notes: The pieces can not backtrack. Two trajectories can intersect diagonally but can not pass through the same square. Only the Knight has a discontinuous trajectory.
The answer to Point of View is C and J. The answer to Special Date is 23.4.1765. The solutions of the other puzzles are shown below.
Our third giveaway is over. Congratulations to Steven W. who won a whole pack of socks which he plans to wear in his future Escape Room adventures.
Hey, puzzlers, our friends at Soxy are offering their comfy socks in a new puzzle pattern and want to share 5 pairs with you. Solve the puzzle below, post the answer on our Facebook wall, and you can be the lucky winner of a whole set of fun socks. Click the banner below to check Soxy’s other cool items.
Last week, I got from Soxy 1 pair of brown socks, 3 pairs of brown shoes, 2 pairs of black socks, 2 pairs of black shoes, and put them all in a wooden chest. How many times should I pick a random item from the chest, so that I end up with all-matching shoes and socks to wear on Comic-Con?
Our second giveaway is over. Congratulations to the winner, M M Del Rosario, and to his nephew, who will have countless hours playing with all the wonderful toys we chose for him from Fun.com!
For our July giveaway, we are partnering with our friends at Fun.com, a great website for games, toys, and fun Halloween costumes. We have prepared for you a colorful picture with lots of hidden stars in it. Answer correctly what their number is and on the 15th of July, you could be the lucky winner who gets more than $100 worth of puzzles and games, including “Perplexus”, “Codenames”, “Manifold”, and many more!
Our first puzzle contest is officially over. Congratulations to the winner Kuan L.! Also, special thanks to Rajesh Kumar, Johann Sturcz, Dave Phillips, P. A. Heuser, as well as ThinkFun and Dover Books for contributing puzzles.
Time for work – 1 hour
Examine the diagram and find which pairs of letters are connected with each other.
2. King Kong’s Maze
Detective Roy Omoshi (upper right) is chasing a dangerous criminal (lower left) through a destroyed maze. King Kong is trying to help Roy by putting together all the pieces of the maze so that the detective can safely traverse it. Analyze the picture and find the sequence of pieces Roy Omoshi will pass through before he catches the criminal. Some pieces (#1, #7, #8) consist of multiple horizontal segments, so it is possible that the detective visits them multiple times.
3. Color Path
Enter by the bottom red path and exit from the top of the maze. You may retrace your path, but you may not make a U-turn on a pathway. You must follow the paths in the order red, blue, yellow, and then red, blue, yellow again, changing color at the white squares.
4. Amy’s Cats
Aunt Amy’s six cats have sat around the carpet, next to the thread, the pot, the cage, the coffee, the shoes, and the aquarium. You know that:
The two cats with bows sit next to each other.
The cats next to the bird cage and the coffee do not have blue eyes.
The two striped cats sit next to each other.
The weights of the cats next to the aquarium and the shoes do not differ by more than 3lbs.
There is a cat with a bell between two cats without long hair.
Pip Squeak sits next to Tom or Sassy (or both).
Find the names of the cats clock-wise around the carpet, starting from the left.
5. Chess Connect
The starting and ending positions of 7 chess pieces are shown on the board. Find the trajectories of the pieces, if you know that they do not overlap and completely cover the board. Notes: The pieces can not backtrack. Two trajectories can intersect diagonally but can not pass through the same square. Only the Knight’s has a discontinuous trajectory.
6. Sheep and Wolves
A shepherd takes his two sheep every day to a 7×7 lawn, so that they can eat the fresh grass there. However, there are five wolves on the lawn which are preying on the poor sheep. The shepherd decided to build a closed, non-intersecting fence around the sheep, so that all wolves end up on the outside. He planned the shape of the fence carefully and installed several signs showing the number of fence pieces around the corresponding cells. Can you figure out the shape of the fence the shepherd is going to build?
Our first puzzle giveaway is over. The winner, Ankush S., is not living in the US, so he decided to donate his prize to a children’s home in Illinois! As an appreciation for his gesture, we created one of our signature avatars for him. Congratulations!
Solve the puzzle below and post the answer on our Facebook page, for the chance of winning the puzzle game Cat Crimes, provided by our friends at ThinkFun.
On the image below you can see 11 points in the plane placed in such a way that there exist 6 lines passing through 4 points each. Can you place 10 points in the plane, such that there are 5 lines passing through 4 points each?
CAT = 3, BOWL = 2, FISH = 1. The scratches represent Roman numerals.
4 (CAT with a FISH) + 6 (VI) + 2 (TWO FISH) = 12 1 (FISH) + 2 (BOWL) + 5 (CAT with a BOWL) = 8 5 (CAT with a BOWL) + 3 (CAT) + 3 (III) = 11