Frequently Asked Questions

We do, by hand, in plain JavaScript. No game engine, no third-party library, no build step. The site's entire script fits in a single readable file.

Yes, each one is drawn at random for every game and verified before it is shown: a solver confirms that a solution exists, and only one. Nothing that requires guessing, nothing unsolvable or ambiguous.

A Kakuro of this size, with sums alone, doesn't always have a unique solution. We reveal the smallest number of cells needed — two or three — to guarantee uniqueness. The other three games don't need them.

Your decision about the cookie categories, and, if you accepted the “preferences” category, your best times, your challenge streak, and the last setting of each game. None of it leaves your browser.

All four games work exactly the same, daily challenge included. Simply, no best score is kept from one visit to the next, and the streak starts over from zero.

Open “Manage my choices” at the bottom of any page and uncheck “Preferences”. Times, streak, and settings are erased on the spot.

Because it isn't drawn at random: it is computed from the date. The same date gives the same seed, the same seed gives the same grid, on any device. No network request is needed.

Completing the daily challenge in at least one of the four games. Completing all four on the same day doesn't count four times: the streak is measured in days, not games. It breaks if a whole day goes by without a single success.

The daily challenge can be completed once per day per game. A second success on the same day adds nothing to the streak. The game tells you so clearly.

You'll get the challenge for the date your device shows. Since nothing is checked server-side, there being no server, the streak is a commitment to yourself and not a ranking to defend.

We detect them and record them in your consent record. Since no optional category is on by default, a GPC signal changes nothing about what the site does today: there is nothing to turn off.

None today. If that were to change, the advertising disclosure page already describes the rules that would apply, and advertising cookies would remain conditional on your explicit consent.

Once the page has loaded, yes: nothing more is requested from the network. We don't install a service worker, so a full reload requires a connection.

Yes, all four games included. The accessibility page details the keys for each game, one by one.

The site is aimed at a U.S. audience. The privacy policy is written with U.S. federal and state privacy law in mind, including the CCPA/CPRA and COPPA.