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PUZZLE

Contents
Each triskele has a central hub with three spiral arms extending from it. Usually the spirals would be uniform, but Murray was inspired, and likes a challenge! So he invented these unique triskeles with three different spiral sizes: small (indicated by 1 dot), medium (2 dots) and large (3 dots). We shall refer to the spirals hereafter as either 1, 2 or 3 dots. There is also one centre marker.
The set of 13 triskeles (marked A-K on the backs) comprise all 11 permutations of the 1, 2 and 3 dot spiral arms, plus two duplicates (A-B), fig. 1. The number 13 was revered by the ancient Celts as their year was divided into 13 lunar cycles and birth trees. And furthermore, many cultures consider 13 a lucky number.

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123 x 2
(One arm of
each size)

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132 x 2
(One arm of
each size)

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111 x 1
(All arms the
same size)

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222 x 1
(All arms the
same size)

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333 x 1
(All arms the
same size)

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211 x 1
(Two different
size arms)

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311 x 1
(Two different
size arms)

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122 x 1
(Two different
size arms)

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322 x 1
(Two different
size arms)

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133 x 1
(Two different
size arms)

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233 x 1
(Two different
size arms)

fig. 1: Complete set of 13 triskeles.

Connecting Triskeles
When connecting triskeles, all spiral arms must have similar sizes, so 1 dot only match with 1 dot, 2 dots with 2 dots etc., like dominoes.

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Fig. 2:
The size of spiral arms must match.

Puzzle
There are 55 puzzles in each set of Trisko, ranging from an easy Level 1 to difficult Level 5, fig. 3.

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Level 1

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Level 2

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Level 3

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Level 4

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Level 5

Fig. 3:
55 puzzles to solve, each time with a different triskele (A-K) at the centre, placing the marker on top to avoid it getting replaced.