# Perfect Clear Guide

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Perfect Clear Guide

Originally on harddrop community.

## What is perfect clear ?Edit

Perfect clear is a bonus that is rewarded if and only you clear all the minoes.

## How to make a perfect clear ?Edit

This guide tries to give a higher chance of successfully performing a perfect clear. The best scenario is to attempt it at the beginning of the game, when your opponent hasn't finished building up their stack. If you succeed, this usually becomes a K.O.

Note that this guide does not guarantee a 100% chance of success in making a perfect clear. It also requires a lot of understanding and practice to make it work in a game. However, failure is not as bad because you can continue making a stack for T-spin or Tetrises.

The process contain 2 steps.

- Create a stack that makes a perfect clear more possible
- Look for termino combinations that will make it succeed.

## Stack for perfect clearEdit

This is a stack that makes a perfect clear much more likely, since it is built from a combination of every termino and has 12 holes in which fit the next combination of 3 terminos.

It consists of two parts that can be split. First is the 4x4 termino block. You can also split this part into 4x3 and 4x1, which works the same.

Second is the combination of TSZ, which is very important here. Note that you should get T before Z to make this shape.

Which means it is possible to create a shape like this.

or like this

or this

or a mirror one applies to the similar theory(but not the same). Note the difference in TSZ combination.

## Combining the Next Terminos for SuccessEdit

Now lets assume you finished building your stack like the one below:

The next thing to worry about is what your next 3 terminoes will be. Note that you can use the queue to hold one unused termino. As a tetris player, you should know that the sequence is very important in many cases.

### LTIEdit

One successful positioning is shown here. This combination will work regardless of the order of terminoes. But L before T is easier, since otherwise you must use an L spin technique.

first, insert L into the position by soft dropping it:

Then spin it clockwise once.

then insert the i termino (or t if it comes up next)

resulted in a line clear making a perfect clear position for the T termino