Sigma | Code Wars

Features Sigma | Code Wars

Sigma is the first app enabling users to compete against each other in coding challenges in real-time.In addition, Sigma has a vast collection of programming challenges, starting from complete beginners level to professional experts level, which you can practice and solve as you want.Check if a string is a palindrome?
Print all the prime numbers between 1 to 100.
Given there are two queens on a chessboard, check if they could attack each other.
Check if 4 points on the x, y plane form a square.Become fast and clever, plus become a part of the coding community.