Puzzle sunday (16)
A relaxing permutation puzzle keeps nerves in a sound state. And now for a real challenge, puzzles of geometry, but in spanish. And if you like touchable puzzles, here a DNA puzzle, on a fun to be site about DNA.
Thinking café to scaffold
A relaxing permutation puzzle keeps nerves in a sound state. And now for a real challenge, puzzles of geometry, but in spanish. And if you like touchable puzzles, here a DNA puzzle, on a fun to be site about DNA.
Geplaatst door Odile S op 5:09 PM
Labels: permutation puzzle, puzzle de geometria, spanish geometry puzzles
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