Nervous System 2-in-1 challenge puzzle: Part 1

            I tried, I really did, and this puzzle kicked me in the ass.  No image, no difference between front or back, tiny teeth connectors, and very little help from the wood grain, which is much more visible in this photo than in person.  Even though I have done two of these puzzles before, and understand the cut, this one took much longer, due to the ambiguity of front versus back side. 

When I look at my difficulty ratings, the two Amoeba puzzles always stood out as outliers, since they have such small piece counts yet were extremely slow.  I thought, maybe I had been taking my time, savoring the experience?  But no, these puzzles are the real deal if you are looking for a challenge.  

Completed in 3 hr., 10 mins. No image to refer to.  74 total pieces: 154 secs./piece; 23.4 pcs./hr.  Difficulty rating: 15.4/10.  The second most difficult puzzle I've timed.  Part 2 will certainly be even harder.

Taken on: February 5, 2025

Sets appears in: • Completed puzzles • Timed puzzles more » • Laser-cut wooden puzzles • Shaped puzzles « less

Groups appears in: • Traditional Wooden Jigsaws • BCD Just Jigsaws

Camera: Apple iPhone 13, f/1.6, 1/37 sec, 5.1mm, ISO 640 (more info) (hide info)

Camera:	Apple iPhone 13
Aperture:	f/1.6
Exposure Time:	0.027 sec (1/37)
Focal Length:	5.1mm
ISO:	640
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Program AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	Uncalibrated
Software:	18.1.1
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