Venn Perplexors

Presenting a fast, fun way to help kids build logical thinking and expand their vocabulary.

Presenting a fast, fun way to help kids build logical thinking and expand their vocabulary.

Riddles about deserts, mountains, caves, rainforests, or oceans.

"The essays contained within Conditions show the immense scope and potential of Badiou's extraordinary system."--BOOK JACKET.

" ... offer[s] a challenging exploration of problem solving mathematics and preparation for programs such as MATHCOUNTS and the American Mathematics Competition."--Back cover

In this third Hidato collection we offer challenging puzzles in five difficulty levels with practice and bonus puzzles included. Hidato® is a pure logic puzzle that is easy to learn and difficult to master, making it the perfect challenge. Each Hidato puzzle starts with a grid partially filled with numbers. The goal is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. Hidato can be solved using 100 percent logic and requires no math or guesswork. You need only careful thought and determination to solve Hidato® puzzles. Hidato 3 presents 200 brand-new Hidato puzzles for hours of summer puzzling.

Snowflake Puzzles are a new sudoku-like puzzle comprised of 55 hexagons, 13 Gray and 42 white. Each gray hexagon is surrounded by six white hexagons, three of which "point" to the gray hexagon. There is a number in each gray hexagon. This number is the sum of the three numbers in the three white hexagons that point to it. The objective is to fill in all of the empty white hexagons. In order solve a Snowflake Puzzle, you need to place a number (1 through 6) in each empty hexagon following these simple rules: 1.The number in each gray hexagon is the sum of the three numbers pointing to it in the white hexagons 2.Each gray hexagon is surrounded by the numbers 1 through 6 once and only once in each of the six surrounding white hexagons