100 Geometric Games |
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16 triangles areas they contain bicycle black square bricks change the position chess queens chessboard Classify the triangles climb concave hexagons consecutive rectangles convex hexagons crossing your path Cut the figure diagonal diagram disappear momentarily drawing is different elementary areas elementary triangles five are identical four matches four points Game 54 horizontal interlocked knotted once knotted twice loop is knotted loop knotted main diagonal MARTIN GARDNER momentarily from sight move any number move reverses multiples of sixty number of elementary number of squares number of walks odd number once without crossing pedal planes point twice points to form reach the tape rectangles 9 roads rook rope rotated by multiples rows of four runs a hundred six drawings five six glasses six straight lines sixth drawing sixty degrees small square Tarot tile tour is impossible triangles 12 triangles they contain Urban runs vertical walk once walks meet white square