Conceptis addict: Congratulations Tetris -25 years
www.puzzlingqueen.com/2009/06/congratulations-tetris-25-years.html
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
The blog of a person who loves Japanese puzzles and mathematics and wants to share the wonderful experiences these addictions can give. Also introducing Finnish habits and the life of a dog owner. ...
Conceptis addict - http://conceptisaddict.blogspot.com/