1. The square, the circle, the rhombus and the triangle are carved from white, blue...
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Challenges Kaleidoscope of logical problems
Zhukova Z.P. The proposed problem is designed to work with students 2 ...
0 2k 0August 10, 2010 -
Challenges "Table of Ranks" - a logical task
Once representatives of five arms of the troops - sapper, signalman, border guard, tankman.
0 2k 0August 10, 2010 -
Challenges Interesting logical problems
Five friends – Andrei, Boris, Victor, Grigory and...
0 4k 0October 5, 2009 -
Challenges Logical problems - the principle of logical square
Our whole life is a continuous solution of the big and the small.
0 2k 0August 15, 2009 -
Challenges Logical problems
Many of the tasks on this page are easily solved.
0 3k 0September 9, 2008