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'''[[Main Page|Home]] * [[Chess]] * [[Squares]] * Intersection Squares'''
[[FILE:Two_Intersecting_Planes.jpg|border|right|thumb|link=http://www.mcescher.com/Gallery/back-bmp/LW377.jpg|[[Arts#:Category:M. C. Escher|M. C. Escher]] - Two Intersecting Planes, 1952 <ref>[http://www.mcescher.com/Gallery/gallery-back.htm Picture gallery "Back in Holland 1941 - 1954"] from [http://www.mcescher.com/ The Official M.C. Escher Website]</ref> ]]
'''Intersection squares''' are the result of the [https://en.wikipedia.org/wiki/Line-line_intersection intersection of two lines] from two different squares with two disjoint directions, either [[Ranks|rank]], [[Files|file]], [[Diagonals|diagonal]] or [[Anti-Diagonals|anti-diagonal]], in total 2*(3+2+1) = 12 possible combinations. Those lines (may) have up to one square, where both lines intersect - a square where two appropriate sliding pieces were able to move to in one step (assuming no obstructions).
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* [https://en.wikipedia.org/wiki/Linear_equation Linear equations from Wikipedia]
* [https://en.wikipedia.org/wiki/Crossroads_%28culture%29 Crossroads (culture) from Wikipedia]
* [[Videos#SunRa:Category:Sun Ra|Sun Ra]] - Where Pathways Meet, from [https://en.wikipedia.org/wiki/Lanquidity Lanquidity] (1978), [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=L5vRHbQoTlc|alignment=left|valignment=top}}
'''[[Squares|Up one Level]]'''
[[Category:M. C. Escher]]
[[Category:Sun Ra]]
