# 7th PC Patterns

Let's assume that you are attempting consecutive 4-height PCs. Each 4-height PC requires 10 pieces and each bag has 7 pieces. Therefore you have a potential to complete a full loop on your 7th PC because 70 pieces (10 pieces × 7 PCs) are divisible by 7, a full bag. This makes the 7th PC unique—the 7th PC being on the end of the loop means that it can be thought of 3 residual pieces + 7 pieces from the 10th bag.

This page lists some 100% patterns that you could use for your 7th PC. However, it is by no means comprehensive, i.e., it will not cover every possible 3 piece combination. If interested, a good supplementary page to look at could be knewjade's Best Chance Field.

## Patterns

Every pattern shown here has a 100% chance of PC.

### 1

OST: 1 solution

### 2

ITZ: 1 solution

### 3

IST: 2 solutions

### 4

IJT

JLT

JST: 4 solutions

### 5

JLO

JLS

JJO

JJZ: 8 solutions

### 6

JLO: 3 solutions

### 7

IOT: 2 solutions

### 8

JOT

JTZ: 5 solutions

### 9

IOS: 5 solutions

### 10

STZ

ZZT: 3 solutions

### 11

LOZ

TTO

ILZ

IJO: 5 solutions

### 12

JOZ

IJZ

IJS

OOJ: 5 solutions

### 13

IIT

JJT

OOT: 3 solutions

### 14

JJS

IJL

TTJ: 5 solutions

### 15

IIO

JJO: 9 solutions

### 16

IIL

JJL

OOL

IJO: 10 solutions

## See Also / References

Nilgiri's tweet on ITZ