04-06-2010, 12:23 PM

It might be handy to share tips and techniques regarding tameshiwari, the art of breaking stuff.
To kick off: If I remember correctly, there are three boards: yellow (easy), red (medium), black (hard). I presume that two superimposed boards are harder to break than the sum of the single boards. Would two yellows boards be harder or easier to break than a single black board?

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