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Tchisla is a really absorbing number puzzle from the creators of Euclidea. Explore the magic world o

Learn how to construct cross sections of polyhedrons. Study different techniques, train yourself, an

How hard can you kick a soccer ball? The world record exceeds 124 MPH (200 km/h). Do you think you c

Euclidea is geometrical puzzles based on classical Euclidian constructions.> 145 Levels: from very e

Study geometry while playing on squared paper.> 350+ tasks: from very simple to really geometric puz

Check how well you know the geometry by solving construction problems on a triangular grid.> 300+ ta

Euclidea: Sketches is an interactive geometry app intended for creating and exploring geometrical co

Connect bubbles with the shortest line."Graphics are simplistic and outstanding; we don't need a