Buo Lai En
In the days when I played chess obsessively -- er, regularly -- I developed a version of this condition. I used to look at people and objects and visualize them as pieces, and then start calculating what might happen if they were moved in various ways: "Let's see. Kyra takes lamp, check. No, that would be met by Michele to desk three, discovering check and winning the stereo. How about teacher to vice-principal six, threatening mate in two? Looks good so far ... no ... wait ... that fails against cat to bookcase four, and I can't avoid losing my Kyra. Aha! There it is: fern to oscillating fan six, forcing mate in five after the compulsory interposition Moby Dick to Tale of Two Cities two, leaving the Complete Works of William Shakespeare undefended at dining room table five."