FOUR

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.

No.HoldCurrent Bag (Leftover)Next BagSubsequent Bag
1st
2nd
3rd
4th
5th
6th
7th

Summary

With T


IJT 1    IJT 2    IJT 3    IOT    IST    JLT    JOT 1    JOT 2    JTZ    JST    OST    STZ

Without T


IJO 1    IJO 2    IJS 1    IJS 2    IJZ    IJL 1    IJL 2    IJL 3    IJL 4    IOS    JLO 1    JLO 2    JLS    JOS 1    JOS 2    JOZ   

Duplicate Pieces

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

100% Patterns

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

1

OST


2

IST


3

IOT



4

IJT
JLT
JST



5

IJL
JLO
JLS
JJO
JJZ



6

JLO
IJJ



7

IJT
JOT
JLT



8

JOT
JTZ



9

IOS
LLS
IJL
JJS



10

STZ
TZZ



11

LOZ
OTT
ILZ
IJO
JTT

12

IJS
IJZ
JOZ
LOZ
JOO


13

IIT
JJT
OOT


14

JJS
IJL
JTT



15

IIO
JJO


16

IIL
JJL
LOO
IJO



17

IJT



18

IJL
IJJ



Non-100% Patterns

1 (97.38%)

JSZ
ILZ has a corresponding 100% pattern.



2 (99.52%)

ISZ



3 (89.13%)

OSZ



See Also / References

  • Credit to cosin307 for all patterns except:
    • Credit to stickmancomic for JOT 1 +, JLS +, and IOT (and Ogonkek:Macron for the original DPC pattern that results in that field)
    • Credit to Nilgiri for ITZ (tweet)
    • Credit to Ogonek:Macron for ILT (tweet)
    • Credit to JimothyJimothy for IJL 1 +
  • Duplicate Piece 7ths Google Sheet by smolfeesh
  • Extra patterns: IOT, IST, and JLS + that were previously on this page.

thanks to stickmancomic, JimothyJimothy, and Bladewood for the help on this page

Perfect Clears

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