Observed arrival · 2026-10-23
The Calendar Puzzle
A free daily logic puzzle asks players to place ten pieces so that only today’s month, date, and weekday remain uncovered.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Daily puzzle and spatial-logic players
- Worth noticing
- The ten pieces comprise three tetrominoes and seven pentominoes, covering 47 of the board’s 50 squares.
Field notes
The board combines 12 months, 31 dates, and seven weekdays for 50 squares total. The page describes ten pieces—three tetrominoes and seven pentominoes—that cover 47 squares, leaving the current date’s three markers exposed. Players can rotate with a button or the R key, flip pieces, and stop the timer by solving; leaderboard sections are present, though their extracted text showed a loading state.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue