수식 크로스

■ Number Crossword Puzzle

Horizontal and vertical equations are arranged crisscross on the board.

Fill in the blanks with the number tiles below to complete the equations and finish!

Anyone can start immediately if they know just addition, subtraction, multiplication, and division.

Since every board has only one answer, you can solve it using only reasoning, without guessing.

■ Easy and Fast Operation

· Select a square and press the tile to slide it in.

· You can also drag tiles to place them directly into blank spaces.

· Once you complete a line of equations, it will tell you if it is correct. If correct, it turns green; if incorrect, the tile returns to its original position.

· You can press the placed tile to remove it at any time, including the squares containing the correct equations.

· The equations the selected square passes through are lightly colored to prevent confusion.

■ Four Difficulty Levels

Easy · Medium · Hard · Expert.

The board size increases, the numbers grow larger, and the number of blank spaces increases. Levels increase with each difficulty level, and you can see the stars leading up to the next level.

■ Daily Challenge

One new level every day. The same level appears for everyone on the same day.

Difficulty levels vary by day of the week, and you can also select past dates from the calendar to solve.

■ Levels

Starting from Level 1, you play one level at a time; the next level gets slightly harder with each clear.

Start at Easy, progress through Normal and Hard, and work your way up to Expert. Cleared levels are saved so you can continue playing at any time.

■ Hints and Mistakes

· If you get stuck, use a hint to fill in a blank with the correct answer. You are given 5 initially, and once you use them all, you can watch an ad to receive one more.

· Filling in an incorrect equation adds one mistake. The level ends after three mistakes.

■ Records and Awards

Views your play count, win rate, best record, and average time by difficulty level.

Collect awards such as First Win, Perfect Game, and Daily Consecutive to fill your trophy display case.

■ Other

· Unfinished levels are automatically saved so you can resume them at any time.

· Bright and dark screens
· Turn sound effects and vibration on and off

· No login, no sign-up. Progress is saved only on the device.