Meaning of terms used in this HP

Cell

This is the place to put 16 numbers of 4 * 4. The squares are pre-filled with numbers from 1 to 4, 4 types of pictures, 4 types of symbols, and 4 color tiles. ?? Fill in the squares according to the rules and proceed with the game. The game is over when all the squares are filled.

Line

There are 4 squares lined up side by side. There are 4 lines in total.

Column

There are 4 squares lined up vertically. There are 4 rows in total.

Block

There are 4 squares of 2 * 2. There are 4 blocks in total.

Unit

Use units when calling rows, columns, and blocks together. When we say "a row, column or block contains a circle", we say "a unit contains a circle."