Calendar Puzzle, Double Panel, Multi-Level Challenges

 

Introduction

This is a fun twist on the daily calendar puzzle! Instead of just one rectangular panel, we have two panels on the playing board, as you can see in the picture below. The two panels aren’t connected, so each polyomino piece can only fit in one of them. The panel on the left shows the months and days of the week, while the larger panel on the right displays the days of the month. Just a heads-up, there are two empty squares, one on each panel.

This puzzle features ten polyominoes, as you can see in the image above. Each polyomino piece has a dot on one side, and the other sides are clear.

You can find the svg file for laser cutting/engraving machine at CuttingPATH and ATOMM

How to Play?

The goal of this puzzle is to show three squares representing the date (month, day of month and day of week), while covering all other squares (including the two empty ones) using the ten polyominoes, like the picture below. Here are three ways to play:

1. Easiest: Give it a shot by rotating, moving, and flipping all ten pieces, but don’t worry about the dots. Computer simulations show that there are about 970.7 solutions per date in average from all 2,562 (=366x7) dates, and every date has at least 105 solutions!  
2. All dots: Turn and flip all the pieces so the sides with Dots are facing up, then try to rotate and move these ten pieces, without flipping, to solve the puzzle. With this "all dots" rule, cthere is an average of 57.5 solutions per date from all 2,562 dates, every date has a minimum of 1 solution. A solution to solve June 15 Wednesday is shown below and you see all pieces have dots facing up.
   
   
   
3. No dot: Turn and flip all the pieces so the sides with No dot are facing up, then try to rotate and move these eight pieces, without flipping, to solve the puzzle. With this "no dots" rule,  there is an average of 54.1 solutions per date from all 2,562 dates, every date has a minimum of 1 solutions.