Chess for fun...
I bought this book (first published 1942) secondhand for $1 and I enjoy dipping into it now & then. Edward Lasker was a lover of chess for its own sake.
One chapter is devoted to The Chess Problem -
'...the problem offers a type of pleasure which, though different from the pleasure found in games, is just as intense for anyone gifted with aesthetic sensibilities'
Here is a classic problem to get your head around (composed by H Weenink):