Oak Logic Puzzle

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Project by Peter Brown posted 11-07-2013 06:09 PM 3021 views 44 times favorited 12 comments Add to Favorites Watch
Oak Logic Puzzle
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Here is great project for your scraps. I made a bunch last year as stocking stuffers. They were very well recieved.

First, I drilled a 1 3/8” hole in the face, then cut the shape on the bandsaw. It doesn’t need to be perfect.

The rope is just nlyon rope from the BORG

I then bough 2 – 1 1/2” welded steel rings. (As long as they are just too big to pass through the hole.)

The closer they are the more infuriating for the puzzler solver and the more joy you get while watching.

I then drilled out a 1/2 hole on either side about an inch deep.

Next to the lathe, where I turned some oak to 1/2” and then drilled from the tailstock at 9/32.

Thus creating an oak collar.

I forced the rope through the collar and knotted it.

Then shoved the knot into my 1/2” hole and glued the plug in place.

This is a tight connection, as your recipent will spend time tugging on the rope.

Next put on the rings and route the rope through the puzzle, then secure the second end just like the first.

The object is simple. Get the two rings together. It’s surprisingly tricky…

-- Peter Brown - Collector of WD-40 and wood splinters

12 comments so far

View Diggerjacks's profile


2299 posts in 3524 days

#1 posted 11-07-2013 06:31 PM

Hello kludge

Welcome to LJ’s

A nice project

I like all these logic puzzle

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind has no limit

View JanKrompan1's profile


60 posts in 2211 days

#2 posted 11-07-2013 06:52 PM

Hi Kludge

I’ve tried to figure it out….......... unsuccessful, will you give us the solution later on?

Thanks for sharing.

-- Jan, Free State Province, South Africa

View Peter Brown's profile

Peter Brown

196 posts in 2062 days

#3 posted 11-07-2013 08:52 PM

The solution is like most good puzzles, simple once you know.

Most people get it in an hour or so. I borrowed this design from a puzzle enthusuist who would not like me blasting it’s solution on the web. But it is solveable and fairly simple.

-- Peter Brown - Collector of WD-40 and wood splinters

View exterminate's profile


136 posts in 2412 days

#4 posted 11-07-2013 09:19 PM

I’m planning on making some of these for christmas this year. Is there any particular length the rope needs to be compared to the block? Nice job! I like the collared plugs. Most of these that I have seen, the rope is just glued into the hole. Thanks for sharing!

-- Albert Einstein - "I'd rather be an optimist and a fool than a pessimist and right."

View Peter Brown's profile

Peter Brown

196 posts in 2062 days

#5 posted 11-07-2013 10:25 PM

I din’t measure it, I just made it look pleasing. I don’t think the lengh effects the process too much. As long as it has room to move the rings around the edges.

-- Peter Brown - Collector of WD-40 and wood splinters

View HillbillyShooter's profile


5811 posts in 2677 days

#6 posted 11-07-2013 11:48 PM

Cool! Thanks for sharing.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View clieb91's profile


3620 posts in 4320 days

#7 posted 11-08-2013 03:45 AM

Welcome to LumberJocks. Great puzzle, the shape you used is good. Seems to be very compact.


-- Chris L. "Don't Dream it, Be it."- (Purveyors of Portable Fun and Fidgets)

View eddie's profile


8565 posts in 2999 days

#8 posted 11-08-2013 06:05 AM

i see a head ache coming on ,:) welcome to LJs

-- Jesus Is Alright with me

View oldnovice's profile


7482 posts in 3753 days

#9 posted 11-08-2013 06:28 AM

Love puzzles made out of wood and scraps makes it even better!

Thanks for sharing and the headache this one will cause!

-- "I never met a board I didn't like!"

View hunter71's profile


3392 posts in 3571 days

#10 posted 11-08-2013 11:37 AM

Great build. I have made a lot of similar puzzles for the kids. They all LOVE/HATE them.
Adults do too.

-- A childs smile is payment enough.

View Peter Brown's profile

Peter Brown

196 posts in 2062 days

#11 posted 11-08-2013 03:50 PM

Thanks guys I appreciate all the feedback!

-- Peter Brown - Collector of WD-40 and wood splinters

View Underdog's profile (online now)


1325 posts in 2420 days

#12 posted 12-06-2013 04:48 PM

The thing that bugs me about this puzzle is that I know I’ve figured it out before, but can’t remember how it’s done….

I hate it when that happens.

I like your variation on this old puzzle though. Nicely done.

-- Jim, Georgia, USA

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