What are the rules of Tetris puzzle?

The rule of Tetris puzzle is that when S-shaped squares and Z-shaped squares appear alternately at appropriate intervals, more and more indelible lines will inevitably appear in the game area, which will eventually lead to the end of the game.

Tetris has caused a mathematical problem worth thinking about. If the player's technical level is super high, will the game never end? The answer is no.

During the game, you can get 1 00 points by deleting1line once, 300 points by deleting 2 lines, 600 points by deleting 3 lines and 1000 points by deleting 4 lines. It can be found that 100,300,600, 1000, the variation law is 300-100 = 200,600-300 = 300,1000-600 = 400,000. These two laws explain that if the squares are accumulated to 2 lines, 3 lines and 4 lines at a time and then eliminated, the score will be much higher than that of line-by-line elimination.

Seven squares with different shapes can't spell a complete rectangle;

There is a simple reason. Using the dyeing strategy, each square is dyed black and white, and it will be found that each square always occupies two black squares and two white squares, and only the "T" square always occupies an unequal number of black and white squares.

Therefore, the total number of black and white squares occupied by seven squares is not equal, but in a specified rectangular area, the number of black and white squares is the same, so it cannot be completely covered by these seven squares. Therefore, it is impossible to make a complete rectangle with seven kinds of Tetris.