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 can complete a full loop on your 7th PC because 70 pieces (10 pieces × 7 PCs) are divisible by 7, a whole 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 leftover pieces + 7 pieces from the 10th bag.

This page lists some 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.

Summary

Non-Duplicate Pieces

With I

IJO ¹    IJO ²    IJT ¹    IJT ²    IJS ¹    IJS ²    IJZ    IJL ¹    IJL ²    IOS    IOT    ITS ¹    ITS ²

No I

JLO ¹    JLO ²    JLS    JLT    JOT    JOS    JOZ    JTZ    JST    OST    STZ

Duplicate Pieces

IIJ    IIO    IIT    IJJ    JJL    JJO ¹    JJO ²    JJS    JJT    JJZ    JOO ¹    JOO ²    JTT ¹    JTT ²    OOT    OTT    TZZ

100% Patterns

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

1

2

3

4

See below for an alternate pattern that you can use for IJT

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Non-100% Patterns

1 (97.38%)

2 (99.52%)

3 (89.13%)

See Also / References

• Nilgiri's tweet on ITZ. Ogonek:Macron's tweet on ILT. Credit to JimothyJimothy for the second IJL. Rest of the patterns found by cosin307.
• All Duplicate Pieces Patterns: Thanks JimothyJimothy for the fumen