Show HN: We used 890M chess games to make an interactive opening graph
Using the Lichess Database containing every live Lichess game ever played, we created a website to visualize chess openings. Each move on the graph is colored by the average Lichess rating of a player who makes it, you can use the graph to visualize several games at once and find transpositions between games. Transpositions are particularly interesting on a graph as they can be hard to spot otherwise.<p>You can see data from players similar to you by filtering the graph by Elo or time control. If you are interested in really high rated games you can swap the database and see tournament games with >2000 Elo from the Kingbase dataset, or to go even higher you can view a dataset from chess engines playing each other. It can be surprising how different the graph looks in tournament games compared to even high rated Lichess games, to swap or filter the dataset click the graph button at the top of the screen.<p>If you want to see the opening from a specific game on the graph you can use the "Trace Game" feature, then you can paste a PGN in, or if you are a Lichess player you can grab games from your Lichess account. To find a position you are interested in you can click search and enter it into a chessboard.