There are, however, five (generally accepted) golden rules:
• One-hand one-bounce (no fumbles)
• Six and out
• No LBWs
• When asked, there is always "two to come"
• You can always make new rules – BYC is about evolution
But each backyard carries its own sets of rules, which must always be respected, says Beige Brigade co-founder, Alternative Cricket Commentary (ACC) Head and now Hauraki Head Grot, Mike Lane.
When he was growing up, his father's orchids meant leg-side shots were off limits.
"As a result in the real game, I was shocking off my legs," Lane says.
Captain of the ACC and Hauraki radio host Jeremy Wells once flatted in Kingsland, Auckland where the backyard sloped fiercely from off to leg to the right-handed batsman.
"It also had a group of fa'afafine who lived next door who would bend over to pick up balls, proudly displaying the under contents of their dresses to us," the tall elegant batsman recalls fondly.
Wells waxes rhapsodically about the joys of BYC and its importance in a person's life, which can vary greatly depending on their age, marital status, number of physical dependants (both human and substance) and environment.
"It has the ability to make ordinary players into cricketing giants," he says.
The memories, not always positive, can last a lifetime.
Lane's finest moment came after blocking a mate's dad for 90 minutes which resulted in him storming off and banning him from the backyard.
His greatest BYC memory stems back to the same venue, where he "creamed a cover drive and removed the one lemon that the dad was nurturing on a struggling lemon tree".
For Wells, his proudest BYC moment was in making history as part of the first five day/night backyard test at his mate Matt Nicholls' house.
"We lit the backyard with floodlights magnificently but unfortunately couldn't light the garden ... so we lost 25 balls over five days in a flowering native flax bush (Phormium Tenax)."
BYC is never short of controversy either, and that's part of its rare beauty.
Many BYC venues have a back fence or upturned trampoline as an automatic wicketkeeper and debate often rages over whether edges carried, or whether there were edges at all.
Other debates can ignite before the coin is even tossed: length of pitch, for example; the enforcement of tippity runs; choice of projectile; to tape the tennis ball for maximum swing or not? Can you be given out first ball?
They are ethical and sporting battles that will rage beyond twilight in backyards across this New Zealand golden summer of BYC.
• Competition: Here's your chance to win an Alternative Commentary Collective limited edition Thirst Bat. More than just a bat, it's a drinking vessel, perfect for holding and consuming your favourite cold beverage, and destined to bring a new dimension to backyard cricket. To enter, send a photo of your BYC set-up to: Jesse.Williamson@nzme.co.nz