Galactoid’s Perfect Clear Guide

Foreword:

[21 June 2020] I noticed a spike of 30 viewers today on this page. Just note that some of the methods (4th, 5th, 6th, and 7th PC bags) are obsolete, and have been updated in part 2 of this guide here: https://galactoidtetris.wordpress.com/2020/05/10/perfect-clear-guide-part-2/

Credits and Attribution

Many sources were consulted in the making of this guide. Attributions are indicated at where the authors or sources were used. Credits go to a combination of: Galactoid, Cosin, Hard Drop, Okeydokey, Nilgiri, Whipemerald, Knewjade, Pwn_by_numbers, Captivate

Introduction

This guide contains patterns for perfect clears from the 1st to 7th PCs (it repeats every 7 bags – well sort of, minus some exceptions).

Yep you heard that right. I did not just cover the 1st PC bag. I covered up till the 7th!

1st Perfect Clear

The patterns for the first perfect clear using the PCO (perfect clear opener) has been extensively covered on many websites such as Hard Drop.

The main problem with these guides, is that they link too many solutions that are mostly redundant.

Therefore, I have taken the liberty of arranging and pruning Hard Drop’s wiki guide on PCO to list only the non-redundant ones.

Above was what I did, by massively pruning the redundancies.

Some of the PCO images below are from Hard Drop wiki. The rest are my own illustrations using Fumen.

The guide below has been arranged mnemonically for easy memorization.

Case 1

Case 1b

Case 2

Case 3

Case 3b

Case 4

Case 4b

Case 5

Sakana’s 1^st PC Patterns

Sakana is a Japanese player who specializes using alternative 1^st PC patterns. Here are the patterns that Cosin and I both worked out in the past:

Cases with Os:

Cases without Os

2^nd Sakana Pattern This is another of Sakana’s 1^st PC patterns

L+J+T=2 Cases

L+J+T=3 Cases

L+J+T=4 Cases

L+J+T=5 Cases

Galactoid’s 1^st PC Alternative Patterns Other than PCO and Sakana’s patterns, I worked out my work 1^st PC patterns as alternatives

Truncated Grace Pattern PC Pattern

Hard Drop has also written a guide on the Grace Pattern, which is an alternative 1^st PC pattern with higher chance to PC.

See: https://harddrop.com/wiki/Grace_System

As I have done with the standard PCO, I have pruned all redundancies.

Note that the images are credited to Hard Drop. I did not create them. I only rearranged and analysed them.

(Source below: Hard Drop wiki)

1^st Perfect Clear Decision Pathway

Because of the plenitude of 1^st PC patterns, I have worked out a decision pathway on which ones to use to ensure the highest PC chances:

2nd Perfect Clear

Knewjade is a Japanese programmer who worked out the 2^nd PC patterns. However, his guide did not categorise them into follow-ups after the 1^st PC pattern.

So in this guide, I helped rearranged all of his patterns into follow-ups based on the 1^st 4 pieces in the 2^nd PC bag.

Just like the Hard Drop 1^st PCO guide, Knewjade’s guide has a lot of redundancies which are not used following the 1^st PCO. Therefore, I pruned them all out.

Knewjade’s 2nd PC patterns Mnemnonic Guide

Knewjade’s 2nd PC patterns have been arranged below to assist learning. All credits to Knewjade.

3rd Perfect Clear

The 3^rd perfect clear patterns were partially worked out by Knewjade, Whipemerald and Nilgiri. However, some of their patterns were not clear enough. For instance, the Knewjade 3^rd PC patterns are all greyed out!!!! In other words, no one knows how to place them!

Therefore, I have refined and contracted their patterns for more practical uses.

Some of the patterns were my own creations, to fill certain voids which the original authors did not come up with.

NOTE TO SELF:

Haven’t included these new patterns yet:

1^st Diagram is Early T = 63%

Early I: 90% chance

4th Perfect Clear

These are still experimentals.

I abandoned the research long ago.

Cosin and I worked out these:

5th Perfect Clear

These are experimental patterns worked out by me and Cosin.

I have abandoned the research long ago:

6th Perfect Clear

I experimented and worked out these 6^th PC patterns myself

7th Perfect Clear

Cosin and I both worked out these. However because of a clash in philosophy, both of us split up in the 7^th PC bag. Cosin wanted 100% PC chance bags but the solutions are hard to see. I wanted to sacrifice some PC chance to make it easier for practice, use, and memorization. Cosin’s 7^th PC patterns are on four.lol.

The ones below are mostly mine: