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PUZZLE CLASSIC #156

A Crystal
A Crystal

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PUZZLE CLASSICS MATCHSTICK PUZZLES
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Today's Puzzle

A Crystal

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EXPLANATIONS
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5
15
5
15
1
2
3
4
5
6
7
8
10
11
12
1
2
3
4
5
6
7
8
10
11
12

Place the numbers 1-12, sans 9, into the "atoms" of this crystal lattice so that each row totals 20. Two additional numbers are already placed in it - 5 and 15.