When Does Chessguessr Release a New Puzzle and Where Do the Games Come From?

Chessguessr publishes one new puzzle every day at midnight UTC, and each puzzle is built from a real chess game. The page shows the two players and their ratings, for example "Amirfer (2190) – Cybermemere (2277)", so you can see whose game you are reconstructing. There is only one puzzle per day, so once you finish it you have to wait for the next midnight UTC reset.

The daily release schedule

The site states plainly that "a new position will appear every day at midnight UTC." That single sentence answers the timing question:

• One puzzle per day. You are not working through a queue or a set of levels; there is a single daily position.
• Reset time is midnight UTC. This is a fixed reference point, not tied to your local time zone. If you are in New York (UTC−5 in winter), the new puzzle lands at 19:00 the previous evening; in Tokyo (UTC+9) it arrives at 09:00.
• After you finish, you wait. Because there is only one puzzle per day, completing it means the next fresh position is the next midnight UTC.

If you want to know exactly when the next puzzle drops in your area, convert midnight UTC to your local clock rather than assuming it matches your own midnight.

Where the games come from

Every puzzle is drawn from a real chess game, not a composed study or an engine line. The page header names the players and their ratings, as in the example above: Amirfer (2190) against Cybermemere (2277). That tells you a few useful things:

• The games are actual played games between named opponents, with ratings attached.
• The ratings are shown on the puzzle itself, so you can gauge the level of play you are trying to reconstruct.
• The task is to guess the moves that were actually played, not the best moves a computer would choose.

This matters for how you approach it. Because the source is a real game, the "correct" answer is whatever the players actually did, which is not always the engine's top choice.

What you are actually guessing

The puzzle shows you a position and asks for the next five moves from that game. The rules page describes it as "like Wordle, or Chessle, but for chess games." Your job is to reconstruct the continuation, and the tile colors tell you how close each guess was.

Tile colors and what they mean

The examples on the site define the feedback precisely:

The third case is the subtle one. If you guess a knight move and the tile signals a piece-type match, a knight did move at that spot — but not necessarily the same knight and not necessarily that move.

Notation has to match exactly

One rule trips people up: "The notation has to be identical for the moves to be considered the same." The site gives a concrete example — Nxf7 and Nxf7+ are not treated as the same move. A check symbol, a capture marker, or any other notation difference can make an otherwise correct move register as wrong. So write the move exactly as it would appear in the game's notation.

Practical takeaways

• Set a reminder for midnight UTC if you want to solve the puzzle as soon as it appears, converted to your local time.
• Expect one puzzle, not many. There is no backlog to catch up on.
• Read the player names and ratings at the top to understand the level of the game you are reconstructing.
• Match notation exactly, including check and capture symbols, or a correct move may be marked wrong.

The combination of a daily midnight UTC release and real, rated games is what gives Chessguessr its rhythm: a single fresh position each day, drawn from an actual game between named players, waiting for you to rebuild the next five moves.