Daydoku - Calendar Puzzle

Daydoku is a captivating daily puzzle that combines calendar-based challenges with the strategic placement of polyominoes. The game features a calendar grid (comprising days, months, and weekdays) along with 10 distinct polyominoes (3 tetrominoes and 7 pentominoes). Each day, players must skillfully arrange all the polyominoes within the calendar grid in such a way that only the squares corresponding to the current day remain visible. Engage your problem-solving abilities and spatial reasoning skills as you discover multiple solutions to this intriguing and ever-changing daily calendar puzzle.

Strategies and Techniques

Polyomino puzzles, such as Daydoku, present a unique and engaging challenge that tests a player's spatial reasoning and problem-solving skills. To help you master this intriguing daily puzzle, we've compiled a list of strategies and techniques that will guide you through the art of polyomino placement.

Start with the largest polyominoes

Begin by placing the larger pentominoes within the calendar grid, as they occupy more space and can significantly restrict the available options. This initial step helps you eliminate possibilities and makes it easier to visualize how the remaining polyominoes can fit into the grid.

Consider the shape and orientation of the polyominoes

Polyominoes can be rotated and reflected to find the best possible position within the calendar grid. Carefully examine the shape of each polyomino and consider all possible orientations before placing it on the grid. This flexibility allows for creative solutions and increases the likelihood of discovering multiple valid configurations.

Work around the current date

Keep in mind the ultimate goal of revealing the current day, month, and weekday. Focus on positioning the polyominoes so that they do not obstruct these essential calendar elements. As you progress, try to maintain open spaces around the target date to ensure a valid solution.

Use a trial-and-error approach

If you're unsure about a particular placement, experiment with different arrangements and orientations of the polyominoes. Don't be afraid to move pieces around and try new combinations. This trial-and-error process can lead to unexpected discoveries and help you better understand the spatial relationships between polyominoes.

Look for patterns and symmetry

Some calendar puzzle solutions may exhibit patterns or symmetrical arrangements. Pay attention to these potential clues, as they can provide valuable hints for placing polyominoes efficiently. Recognizing patterns can also help you anticipate potential problems and find alternative solutions more quickly.