Loopy Logic Problems and Other Puzzles Paperback Ivan Moscovich

Knotty Number Problems & Other Puzzles by Moscovich, Ivan

Loopy Logic Problems & Other Puzzles (Mastermind Collection) By

Cunning Combination Problems and Other Puzzles Paperback Ivan Mos

Perplexing Pattern Problems & Other Puzzles by Moscovich, Ivan

Leonardo's Mirror and Other Puzzles (Ivan Moscov... by Moscovich, Ivan Paperback

Peerless Probability Problems and Oth... by Moscovich, Ivan Paperback / softback

Brainmatics : Logic Puzzles Paperback Ivan Moscovich