The 4x4x4 King Snake has 64 blocks ( vs. the 27 of its shorter 3x3x3 Snake puzzle cousin) The degree of difficulty climbs through the roof! Oh so tough! If you solve this in under 3 hours without the instructions, we will be quite impressed. (The fastest time to solve we know of is two hours). This King pattern with the checkerboard blocks is very tough even though there are 2 possible solutions, as the cube colors give very little hints as to the correct solution path.
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