On the Subject of Chess

Without pressure, chess can feel more like a game of tic-tac-toe.

		#1	#2	#3	#4	#5	#6
Coordinate #5 is even *	Serial # ends in even	B	N	K	R	R	Q
	Serial # ends in odd	B	R	K	R	R	Q
Coordinate #5 is odd *	Serial # ends in even	K	N	Q	R	Q	B
	Serial # ends in odd	K	R	K	R	Q	N

* Add the coordinate’s letter (a–f = 1–6) and its number and see if the result is odd or even.