More than seven (!) years ago the Oneliner Challenge generated an outburst of creativity and diversity with no less than 36 single-lined MSX-BASIC listings - ranging from complete games and demos to character and sprite editors. All entries of that challenge, won by Germán Gómez Herrera, can still be enjoyed over here."If such nice and inspiring releases can already be made with one single line of BASIC, how much should be capable with ten times as much?", we wondered, and that is why we now start the MRC Tenliner Challenge.