a1 is a black square isn't it??
who invented the rule that the a1 square must be a dark color?

Who invented the rule that a1 must a dark colored square?
ie;:
Tilt the chessboard 90 degrees and you no longer have dark light colored square on a1.
Was it some guy with dyslexia?

Who invented the rule that a1 must a dark colored square?
ie;:
Tilt the chessboard 90 degrees and you no longer have dark light colored square on a1.
OP has edited post...

Who invented the rule that a1 must a light colored square?
ie;:
Tilt the chessboard 90 degrees and you no longer have dark light colored square on a1.
so awesome...

Nobody. It's just a natural result of the rule that a white square must be in the right hand corner.
That rule, of course, was invented by Ruy Lopez' twin brother, Dewey Lopez, who never had the skills or piety of his brother, but was quite persuasive and terribly bossy.

Nobody. It's just a natural result of the rule that a white square must be in the right hand corner.
That rule, of course, was invented by Ruy Lopez' twin brother, Dewey Lopez, who never had the skills or piety of his brother, but was quite persuasive and terribly bossy.
I have never thought about this question before, and I am interested as to where the proof of it can be found. Does anyone know for certain?

who invented the rule that the a1 square must be a light color?
Which one is this... mouse slip or lag?
Nobody. It's just a natural result of the rule that a white square must be in the right hand corner.
That rule, of course, was invented by Ruy Lopez' twin brother, Dewey Lopez, who never had the skills or piety of his brother, but was quite persuasive and terribly bossy.
LOL

Which one is this... mouse slip or lag?
The odds were 50-50. Sometimes it just doesn't work out.

Who invented the rule that White always starts first? Eo, did you invent sliced bread?
No doubt a hungry cossack who liked his bread to be neat.
Who invented the rule that a1 must a dark colored square?
ie;:
Tilt the chessboard 90 degrees and you no longer have dark colored square on a1.