About MinCalc

MinCalc is a small site of calm daily puzzle games. Each one takes about two minutes. They reset at 00:00 UTC, so the whole world plays the same puzzle on the same date. There are no accounts, no email walls, no streak guilt-trips, no ads. Open the page, play the day's puzzle, share the result if you want, come back tomorrow.

The five games

Each game has its own twist, its own colour identity, and its own shareable so a friend scrolling past your result in a group chat can tell which game you played at a glance.

• Targle — the target number is given. Find the six-character equation that hits it, in six guesses or fewer.
• Sumrex — place six rexes on a six-by-six grid whose digits sum to today's target. One per row, column, and coloured region. No two rexes touch.
• Quackle — drop ducks into a 7×7 pond so each region holds one connected flock and no two ducks from different ponds sit side by side.
• Toadle — guess the hidden four-letter word in ten tries. Each guess returns one number — a score, not a per-letter colour grid.
• Peerkle — order eight items from smallest to largest by some hidden measure. Five tries, one tile-locking step at a time.

Why it's calm

We don't think a puzzle should make you feel bad if you skip a day, and we don't think every session has to be a streak-defending event. MinCalc keeps streaks because some players like them, but the design is two minutes, one cup of coffee, no friction.

Anonymous play is the default. Your progress lives in your browser. If you want to clear a day and try again, the settings cog at the top of every page lets you reset any past puzzle — streaks stay intact.

How streaks work

Each game has its own streak — Targle, Sumrex, Quackle, Toadle, Peerkle, five separate counters — plus a cross-game streak that ticks up on any day you played one of the five. The per-game number sits next to that game's masthead while you play; the cross-game number appears at the top right of every page.

Skipping a day doesn't permanently break a streak. Every past puzzle stays playable from the archive, and completing a backfill day extends your streak through the gap — the same way Microsoft Solitaire daily challenges work. Tapping Reveal still counts as completing the puzzle, so a stuck day doesn't lose you the streak either.

How to play any game

On any game page, the ? in the top bar gives you that game's three-bullet rules. The lightbulb gives you progressive hints if you're stuck. Each game also has a comprehensive instructions page (for example, the Sumrex how-to) and a daily hints article at /<game>/hints/<date> if you want a deeper explanation without giving up the answer.

Daily archive

Every past puzzle is reachable. The home page calendar shows the month at a glance with completion status; you can jump to any day and play it as if it were today. The full archive lives at /archive.

Made with

Blazor WebAssembly on .NET 10, hosted as a Docker container on Azure. Code is small and the payload is small — the goal is to get to the puzzle as fast as possible.

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