The Short Circuit

Mike Morgan's technical journal

My son noticed some errors in Dan Harris' book, "Speedsolving the Cube:  Easy-to-Follow, Step-by-Step Instructions for Many Popular 3-D puzzles."

The book has an errata, but the website where the errata was published is down and has been for some time.  So I am going to republish it here, for the benefit of others who may have the book and no list of errors.

Corrections

Page 12 - Table 3.4 Move Notation Scheme - Cube Rotations

In the book: "...z2 means rotate the cube 180 clockwise so that the U-face becomes the D-face, and the R-face stays the same."
Correction: "...z2 means rotate the cube 180 clockwise so that the U-face becomes the D-face, and the F-face stays the same."

Simple oversight.

* * *

Page 31 - Table 4.5b Adjacent Edge Swap Algorithm

In the book: R U2 R' U' R U' R' 1 U2 1 R U R' U R U2 R'
Correction: R U2 R' U' R U' R' + U2 + R U R' U R U2 R'

The 1's should be replaced with + signs to indicate that the algorithm comes in three parts. First you do the Permute Edges Clockwise algorithm, then a U2, and finally the Permute Edges Counter Cockwise algorithms.

* * *

Page 36 - Table 4.8 Swap Adjacent Corners Algorithm

In the book: R' F9 L' F R F' L F R' F' L F R F' L' F
Correction: R' F' L' F R F' L F R' F' L F R F' L' F

F9 should be written as F'

* * *

Page 43 - Table 5.1

In the book: 0.00005
Correction: 0.0005

The % of total cross cases that can be solved in 0 moves is 0.0005, or 5*10^-4.

* * *

Page 56 - Tables 5.8 and 5.9

The table titles have been switched by mistake. Where it says "Counterclockwise" in the title of Table 5.8 read Clockwise, and vice-versa in Table 5.9

* * *

Page 125 - Table 8.3 Both Algorithms

In the book: Corner-Center at Front: (R r) U (R' r') U (R r) (U2 u2) (R' r') (R r)
Correction: Corner-Center at Front: (R r) U (R' r') U (R r) U2 (R' r')

In the book: Corner-Center on Bottom: (R2 r2) U (R2 r2) U (R2 r2) (U2 u2) (R2 r2)
Correction: Corner-Center on Bottom: (R2 r2) U (R2 r2) U (R2 r2) U2 (R2 r2)

Both algorithms are written slightly wrong, please study the corrections carefully to see how they should be written.

* * *

Page 126 - Table 8.4 Wing Edge in bottom layer, on the left.

In the book: Move: D F D' (D' d')
Correction: Move: D F D' F' (D' d')

An F' has been omitted in printing.

* * *

Page 127 - Table 8.5 Both Algorithms for Centre-Edge piece in the bottom layer, and Right-hand diagram

In the book: Colours on Front Face are Nonmatching: R' F' U F (U' u') (D d)
Correction: Colours on Front Face are Nonmatching: D F D' F' (U' u') (D d)

In the book: Colours on Front Face are Matching: R U' R (U' u') (D d)
Correction: Colours on Front Face are Matching: R' D R (U' u') (D d). Please note the Orange sticker on the D slice should be on the Center-Edge NOT the WIng-Edge

Some typing errors, please study corrections carefully.

* * *

Page 132 - Missing Sentence at end of page

In the book: "If you don't know how to solve the 3x3x3, "
Correction: "If you don't know how to solve the 3x3x3, please see the beginner method described in chapter 4 for guidance"

Printing error.

* * *

Page 151 - Second algorithm from top (Cube in cube in cube pattern)

In the book: U' L' U' F' R2 B' R F U B2 U B' L U' F U R F
Correction: U' L' U' F' R2 B' R F U B2 U B' L U' F U R F'

Final move should be F' not F.

Sources

  • Dan's Cube Station! Corrections via wayback machine
  • Harris, Dan (2008) Speedsolving the Cube: Easy-to-Follow, Step-by-Step Instructions for Many Popular 3-D Puzzles Sterling Publishing

4 Comments »

  1. This is exactly what I was looking for after reading some Amazon reviews pointing out there are mistakes in the book. Thanks so much!

  2. Ditto for me, John. Thanks, Mike, for taking all the time to write this and program the HTML. I'm currently writing a program for family members that will time solves, calculate averages (both regular and competition types), and save a summary of each session to a history file. I have made these corrections to that excellent book available in the Help section of my program, and added a link to this page (is that okay, Mike?) I would like to share my utility (freeware) with anyone who wants it. I put my email address in the required box needed before I could make this comment.

    jrwilson229@gmail.com

  3. No problem Robb. Glad that you and John found it useful.

  4. The errata has an error...
    Page 127, "In the book: Colours on Front Face are Matching: R U' R (U' u') (D d)"
    should read: "In the book: Colours on Front Face are Matching: R U' R' (U' u') (D d)"
    (there is an apostrophe on the second R in my copy of the book)
    This is before the correction line. (pretty minor point)

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