PGN Chess Editor is the perfect instrument to analyze chess games.
Online database with thousands of games.
Share your games with other users.
Load and save games in PGN format.
Search games by position, players name, player elo, date, eco code.
Statistics and dossier on players and tournaments.
Openings database.
Analyze games with Stockfish 12.
And much more.

Stockfish 12 is an engine developed by Tord Romstad, Marco Costalba, and Joona Kiiski. It is available on https://stockfishchess.org/

Chess pieces are made by Maurizio Monge, http://poisson.phc.dm.unipi.it/~monge/chess_art.php