PUZZLES

Playable Puzzles

Daily Tridem and CRYPTEM, plus the browser-playable Labs.

Quotidien

Hebdo

Mensuel

Niveaux

Labo

Outils

Les casse-têtes du jour sont-ils durs ?

La difficulté est fixée quand on crée le casse-tête. La voici, avant de jouer.

Aujourd'hui, journée facile

La difficulté des 7 prochains jours

Plus la barre est haute, plus c'est dur. Le jour en couleur, c'est aujourd'hui. Barre de gauche : TRIDEM, de droite : CRYPTEM.

  1. sa2026-09-19 TRIDEM Difficulty 1/5 très facile · CRYPTEM Difficulty 1/5 très facile
  2. di2026-09-20 TRIDEM Difficulty 3/5 normal · CRYPTEM Difficulty 2/5 facile
  3. lu2026-09-21 TRIDEM Difficulty 2/5 facile · CRYPTEM Difficulty 1/5 très facile
  4. ma2026-09-22 TRIDEM Difficulty 2/5 facile · CRYPTEM Difficulty 1/5 très facile
  5. me2026-09-23 TRIDEM Difficulty 2/5 facile · CRYPTEM Difficulty 2/5 facile
  6. je2026-09-24 TRIDEM Difficulty 2/5 facile · CRYPTEM Difficulty 1/5 très facile
  7. ve2026-09-25 TRIDEM Difficulty 2/5 facile · CRYPTEM Difficulty 2/5 facile
  • TRIDEM
  • CRYPTEM
  • aujourd'hui

Puzzle Lineup

Morning TRIDEM, noon CRYPTEM, evening Math?, plus the weekly and the monthly. Play whenever you like.

This Month

A day fills in once you solve at least one puzzle. All three games get a bold outline.

1+ solvedAll 3 solved

Puzzle meets YouTube

All videos →

Videos around our puzzles — the ideas and stories behind them.

"Only 3 left" and "5 minutes to go" — those messages are deliberate [Dark patterns and design ethics]

People can't play rock-paper-scissors at random — the habit experiments revealed, and what it teaches game design

That vast world isn't stored anywhere — procedural generation, and the 1985 paper behind it