Mind Games: Math Crosswords
Grids where every row and column has to balance as an equation.
Mind Games: Math Crosswords is a game to improve your math skills. It is a great way to spend your time.
The player's mission is to save the planet from extinction. The aliens have destroyed all the plants on the planet. However, humans have found a solution. Engineers have built ships that convert brain activity into life-giving energy to grow plants. By solving mathematical problems, you are contributing to the restoration of plants and the regeneration of our planet.
Controls
Click a cell and enter a number.
How to Play
- Find the entry with the fewest possible values.
- Fill it and check the crossing equation.
- Propagate the constraint through the grid.
- Balance every row and column.
Tips & Tricks
Start where a row and a column are both nearly full. Two constraints on one cell usually leave exactly one candidate.
Frequently Asked Questions
Do rows and columns both have to balance?
Yes, simultaneously — a value has to satisfy the equation it sits in horizontally and the one it sits in vertically.
Can I guess my way through a grid?
Not really. The double constraint means a wrong entry breaks the crossing line, which is what makes it deduction rather than trial and error.
