Barry R Clarke

Barry R Clarke is the author of books such as Challenging Logic Puzzles.

Books by Barry R Clarke

Challenging Logic Puzzles

Challenging Logic Puzzles

Puzzles For Pleasure

Puzzles For Pleasure

Brain Busters Mind-Stretching Puzzles In Math and Logic

Brain Busters Mind-Stretching Puzzles In Math and Logic

Extreme Logic Puzzles

Extreme Logic Puzzles

Brain-Stretching Logic Puzzles

Brain-Stretching Logic Puzzles

Supergenius Logic Puzzles

Supergenius Logic Puzzles

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The Quantum Puzzle

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The Vortex Atom