There are many different specifications in cricket as to how the game is played, however the MCC has created an official list which are known as "The 42 Laws of Cricket", in addition to which there are five appendixes.
there are lots of rules
As there are many rules, requirement and terms please see the Related Link for the MCCs Cricket laws of the game
They are not different, all rules of Cricket are the same.
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Why does cricket have rules? All sports have rules. That's the nature of sports. They have rules, or they can't work.
Many rules and regulations changed. The method of playing cricket changed.
Many rules and regulations changed. The method of playing cricket changed.
Cricket
Latest changes in rules of cricket include UDRS decision,Super Over when the match ties,Powerplay overs,etc.
Latest changes in rules of cricket include UDRS decision,Super Over when the match ties,Powerplay overs,etc.
The rules are the same everywhere.
Aussie Rules and Cricket