Puzzlerium



Logic puzzles



Engaging and handwritten



Recent PUZZLE posts.



Delight yourself.



Floor Plan



22.08.20


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TomTom Search



16.08.20


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Gold and Diamonds



15.08.20


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Pentominous (Either Or)



12.08.20


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Word Express



11.08.20


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PerfectLand



5.08.20


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Heyalert



3.08.20


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LITS Walls



1.08.20


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Snake and Cacti



27.6.20


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LITS Construction and Nanro Construction



24.6.20


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NoLITS



23.6.20


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Loop and Bounds



20.6.20


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Museum Tour



15.6.20


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Loopy Winds



14.6.20


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Knight Rider



10.6.20


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The power of popular opinion



5.5.20


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VLADIMIR BURIK WINS THE FIRST PUZZLERIUM CHAMPIONSHIP OF OPTIMIZATION PUZZLES



17.4.20


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Electric Rover



This new puzzle comes on an occasion that is 'hidden' in the grid, albeit as a simple visual theme. Instructions follow:


Trace the rover's path, that is a closed loop that does not cross itself, and moves horizontally or vertically through the cell borders. Some of the cells contain a charging station. The rover must visit at least one shaded outlined area between consecutive visits of every pair of charging stations along the path. Each outlined area must be passed through exactly once, and in its entirety. All charging points must be visited. The same is not necessarily true about all the cells in the grid.





10.4.20


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Battleships Minesweeper



This style is a crossover between two popular styles, Minesweeper and Battleships.

A special puzzle is coming up tomorrow.

Instructions follow:


Place the standard fleet of 10 ships into the given grid. Shups cannot touch each other, not even diagonally. Clues inside indicate the number of ship segments in adjacent cells, including diagonally adjacent cells.




9.4.20


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Minesweeper Cave



Today. I am presenting a hybrid between two popular styles, minesweeper and cave. Instructions follow:


Place a mine into some of the empty cells so that each number represents the total count of mines in neighboring cells, including diagonally adjacent cells. Cells with numbers cannot contain mines. Additionally, all of the mines must form a single group of contiguous cells, the cave, each cell reachable from every other cell moving horizontally or vertically. All unshaded cells (cells that do not have a mine) must be connected to the edge of the grid through other unshade cells.




7.4.20


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Snake out



Hope you liked the Summon innovation presented yesterday.

Here is a variation on the Snake puzzle style. Instructions follow:


Place a 1-cell wide snake which does not touch itself, not even diagonally, such that no two white cells in the same row or column contain the same number. Also, no two consecutive cells used by the snake may contain the same number.




5.4.20


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Summon plus



Hope you liked the Skyscrapers puzzle posted 2 weeks ago. Here is a summon variation that I believe hasn't been published anywhere yet. Instructions follow:

Place single digits into some cells, such that cells with the same digit don’t touch, not even diagonally. Some of the outlined areas must contain the digits 1,2 and 3 exactly once each, while some of the areas remain empty. Connected blocks of digits in a row or column form numbers by reading left to right or top to bottom, respectively. Clues outside the grid are equal to the sum of all such numbers within the corresponding row or column.




4.4.20


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First Puzzlerium Optimization Championship



The first POC starts today. The file containing the puzzles and instructions is available here. Good luck.


Errata:

Puzzle 3 Word Walk: The example has 24 unique letters, not 25 as I had incorrectly mentioned on the file.


Puzzle 2, Word Blocks: The cell R10C2 had a different color than any of its neighbors. It belongs to the block on its right. PDF uploaded again.

Puzzle 3, Word walk: The phrase "with the exception that you are not allowed to start or end in an intersection point" is not required. There is no such restriction.



Puzzle 2: One of the contestants reported that R12C11 was colored differently , which I cannot see yet. Anyway, R12C11 and R12C12 are part of the same block, just in case anybody is unsure.


Points system: If two or more contestants submit solutions with the same score, the next contestant will incur a deficit. For example, if A and B score 1000 points on puzzle 1, and C scores less than 1000, C will get 13 points.


Puzzle 4: The wording is a bit confusing. Please make a note of a simpler version:

"Every box of dimensions mxn will contain either m or n chocolates. Square boxes are allowed. "




23.3.20


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POC 2020/1



21.3.20


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Skyscrapers



Rules: Place a number from 1 to N (integers only) into each cell so that each number appears exactly once in each row and column (the grid is of size NxN). Each number represents a skyscraper of that height. The numbers outside the grid indicate how many skyscrapers can be seen in the respective row or column from the respective direction; shorter skyscrapers are hidden behind taller ones.



18.3.20


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About



POC



Anuraag Sahay



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