Thank you, Cool Rom.com!!!! Go to http://www.coolrom.com/roms/mame/.
One of the levels of Klax says "Play Klax every day!" Well, actually, I'm working up to it, slowly but surely! One of the hints that they don't give, conveniently enough, is to use the musical interlude when you make a row... I'm sorry, a "klax"... to get right away to the next few moves ahead, especially when the tiles start piling on more and more, as they are wont to do.