The resulting puzzles were then automatically tagged. We went through 300,000,000 analysed games from the Lichess database,Īnd re-analyzed interesting positions with Stockfish 12/13/14/15 NNUE at 40 meganodes. The Opening fields are only set for puzzles starting before move 20. You can find a list of themes, their names and descriptions, in this file. It is calculated as (upvotes - downvotes)/(upvotes + downvotes), although votes are weigthed by various factors such as whether the puzzle was solved successfully or the solver's puzzle rating in comparison to the puzzle's. Popularity is a number between 100 (best) and -100 (worst). The second move is the beginning of the solution. The position to present to the player is after applying the first move to that FEN. Any move that checkmates should win the puzzle.įEN is the position before the opponent makes their move. playing any other move would considerably worsen the player position.Īn exception is made for mates in one: there can be several. Use a chess library to convert them to SAN, for display.Īll player moves of the solution are "only moves". Click the dropdown where it says “Master Games” and you can select your games, or games of everyone on (not just grandmaster games)Ĭurrently, the Explorer does not index Live Chess games shorter than 5 | 0, Chess960 games, or any games of fewer than four moves in length.3,080,529 chess puzzles, rated and tagged.ĭownload lichess_db_ Format You can also explore the games that YOU play on to see your strengths and weaknesses in how you play in the opening. This database is updated regularly, with current games being added each week. The opening database contains nearly 3 million games, all played by masters! You can be sure that each line you are looking at was played by a high level player. Click on the move you want to see, and the chart will update to show the choices for the move after that. This shows the range of possible next moves, the number of games that next move happened in, and the win percentages for white and black. This will take you to the explorer for all games with this sequence of moves.įor each position in the opening, you can see the full range of viable moves to make next - and see the cumulative results from thousands of high-rated games in a simple table. To use the Game Explorer, click on the name, or list of moves above your game record. Then study the games to see the themes and ideas played by Grandmasters in similar games! Search through millions of games played by top players and see the most popular openings and moves.
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