"Rook and Other Endgames" have A LOT of duplications

Silex777

A lot of lessons in the category "Rook and Other Endgames" are duplicates. That probably explains why there is 250 puzzles in that category, when it's probably around 50 being duplicated 5 time each.

For example the following are the same puzzle:

http://www.chess.com/chessmentor/view_lesson.html?id=2091&c_id=9
http://www.chess.com/chessmentor/view_lesson.html?id=2093&c_id=9
http://www.chess.com/chessmentor/view_lesson.html?id=2096&c_id=9

You can also see it for other puzzles if you start at the beggining of the category and you skip the lessons quickly, you'll notice a lot of puzzles are repeated.

RonaldJosephCote

Hey Silex777;   I agree, some lessons are duplicated for retention purposeses; but not all are. In some problems, they want you to play white. Then the same position comes up later, and they want you to play black