Probably the best chess game review Alternative

Recently I decided to build chess.com game review alternative check demo - povchess.com . What is Game Review ? Chess engine analyze two different position before and after. And then compare "best found move" to actually "played move" by player and return evaluation difference as the number. Engine return evaluation of the position as the number for example: +3 (means 3 centipawns advantage for white) -3 (means 3 centipawns advantage for black) Using these numbers and difference between them allows to give classification for each of the moves. Classification Best Move - if the evaluation difference between the position before and after the move is 0 or very close to 0, it means the most accurate move was played. Blunder - if the evaluation difference is more than 200 centipawns (2.00 in engine terms), the move is considered a blunder. Brilliant - to be classified as brilliant, a move should fulfill a couple of conditions: It is the best move. It is not obviously easy to find. (For exam