Challenge Questions Blog

Challenge Questions

Stop in and exercise your brain. Talk about this month's Challenge from Specs & Techs or similar puzzles.

So do you have a Challenge Question that could stump the community? Then submit the question with the "correct" answer and we'll post it. If it's really good, we may even roll it up to Specs & Techs. You'll be famous!

Answers to Challenge Questions appear by the last Tuesday of the month.
Previous in Blog: The Line Illusion (September 2026 Challenge Question)  
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Breaking up a horseshoe (Oct. 2026 Challenge Question)

Posted October 01, 2026 12:00 AM
Pathfinder Tags: challenge question

You have this iron horseshoe. You are also a talented machinist.

1. Can you cut this horseshoe into 6 different pieces, using two straight cuts, without repositioning the workpieces?
2. Can you cut this horseshoe into 6 different pieces - each piece with a hole - using two straight cuts? Yes, you can reposition the workpieces.

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Previous in Blog: The Line Illusion (September 2026 Challenge Question)  

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