This puzzle type I created for "Contest for best logic innovation"
Instructions:
Fill the grid with letters A, B, C, so that each row and column contains exactly two instances of all these symbols. Letters outside the grid appear first in corresponding directions. In each row and each column letters form the palindrome string i.e. string will be same while reading forward or backward e.g. ABCCBA is palindrome string. Empty squares (if any) are not considered part of string.

Update your timing for this puzzle in the "Comments" section below this post. Also give your feedback regarding this puzzle there, it will help me to improve the puzzles posted on this site.
Solution of this puzzle can be found here
Check out for "Puzzle Gadgets" created by me.
Instructions:
Fill the grid with letters A, B, C, so that each row and column contains exactly two instances of all these symbols. Letters outside the grid appear first in corresponding directions. In each row and each column letters form the palindrome string i.e. string will be same while reading forward or backward e.g. ABCCBA is palindrome string. Empty squares (if any) are not considered part of string.
Update your timing for this puzzle in the "Comments" section below this post. Also give your feedback regarding this puzzle there, it will help me to improve the puzzles posted on this site.
Solution of this puzzle can be found here
Check out for "Puzzle Gadgets" created by me.