Every Secret Achievements

Secret Achievements List-

Castle Victory:
Checkmate your opponent by castling. This is a very rare and difficult achievement. You can ask a friend to help in an unrated friendly match.

Full House:
Win a game without losing any pieces. Usually achievable at lower levels or against weaker opponents.

Killer King:
Deliver checkmate by moving your king. Requires a specific tactical setup where the king moves to checkmate.

Nick of Time:
Win a game with less than one second left on your clock, commonly done in fast time controls like bullet chess.

Full Day:
Spend a total of 24 hours solving puzzles (cumulative time, not continuous).

Searching for Bobby Fischer:
Search for "Bobby Fischer" in the Games Database on Chess.com.

Happy Anniversary:
Remain a Chess.com member for one year or more (earned naturally).

Juggler:
Play 20 daily games simultaneously (accept 20 daily games at once; you can abort some after achievement unlock).

Chess Marathon:
Play a game with over 100 moves.

Good Read:
Have 100 different people read your blog post.

Pen Pal:
Have friends in 10 different countries.

Good Habit:
Solve puzzles for 7 consecutive days.

Quick Knockout:
Checkmate your opponent within 10 moves in rapid, blitz, or bullet games.

Christmas Achievements (Available Only December 3 to January 6)-

Nutcracker:
Defeat Eve the Elf (800 Elo bot)

Full Stocking:
Defeat Santa (1200 Elo bot)

Precious Snowflake:
Defeat Powder the Snowman (800 Elo bot)

Jingle Bell:
Defeat Dash the Reindeer (1600 Elo bot)

Holly Berry:
Defeat Mrs. Claus (2000 Elo bot)
You get the achievement even if you win by one crown in these matches.