Georg Friedrich Kersting (German, 1785–1847)
Caspar David Friedrich in His Studio, 1811
Hamburger Kunsthalle
Caspar David Friedrich in His Studio, 1811
Hamburger Kunsthalle
Algebra, Geometry, International Mathematical Olympiads, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
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