8 queens puzzle
Price:$1.50Downloads:5-10Rating:4 (1)The 8 queens puzzle is the problem of placing 8 chess queens on 8×8 chessboard such that none of them are able to capture any other using the standard chess queen's moves.The ...
Why baby cry
Price:4,58 €Downloads:5-10Rating:1 (1)Crying - the only means that baby can use to inform about his physical discomfort or stress. All babies cry when they are hungry, wet, upset about something or have pain somewhere ...
baby growth and development
Price:$1.99Downloads:5-10Rating:0 (0)Many parents worry, that their children are too short or thin. Some children, naturally, are lower than of medium height as a result of hereditary or another factors; serious ...
Skin rashes (spots). Kids
Price:6,87 €Downloads:5-10Rating:0 (0)Rash in childhood usually is caused by skin inflammation as consequence of infectious disease, of local or general, or this can be an allergic reaction. Rash, when not accompanied ...