Did you solve it? Try this triple Tetris teaser
by Alex Bellos from Science | The Guardian on (#6NR42)
The answers to today's puzzles
Earlier today I set you three symmetry puzzles. Here they are again with solutions.
The most entertaining way to solve these problems is to cut the pieces out of paper and do the rearranging by hand. However, a generous reader made an interactive version available here.
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