A duel is a logic puzzle contest for two: you challenge one person online with a link, you both play the same puzzles, each on your own and whenever you like, and only at the end do you see who won which round. Below you can create a duel or open the ones you have running — it all happens right here in your browser, free and without signing up, and nothing starts on its own.
A duel is three decisions and a link. You choose the puzzle type (for example Paritu, Minesweeper, Code or Pipsum), the difficulty (Easy, Medium or Hard) and the length – 3 or 7 rounds. The link you get to send is meant for exactly one person: whoever opens it sees who the invitation is from and how a duel works, and only then decides whether to accept.
The clock starts when the invitation is accepted, not when the link is opened. From then on you both have 48 hours. You get the same puzzles in the same order, one task per round, and each has exactly one solution that can be found by reasoning. Between rounds you can stop at any point and carry on later.
Scoring is by round: one point per round goes to the shorter time, measured on the server. A wrong answer carries no penalty seconds, only the time it took. Giving up on a round loses it. If two times match to the millisecond, the round goes to nobody; equal points mean the duel is a draw. There are no hints – both sides should have the same means.
Before the end you see nothing of your opponent except “not finished yet” or “finished”: no times, no round count. Only once both are through are all rounds revealed at once. Rounds still open after 48 hours count as lost.
A logic puzzle contest for two people, free in the browser and without signing up. You do not sit in front of a shared board at the same time: each side gets the same brain teasers and works through them alone. There is no computer opponent — without a second person to accept the link, no duel begins.
No. Before the end you only learn whether the other side has finished. Times and points become visible to both of you once both are through – all rounds at once. For a round someone gave up on, the result shows a dash instead of a time.
Nothing runs until someone accepts. As the creator you can find the link again in your list of duels for as long as it is open. An invitation that nobody accepts for a while is deleted; how long which data is kept is set out in the privacy statement. Once accepted, the link is used up; a second person cannot redeem it.
No. Opponents are never assigned, there is no searching for names and no chat. A duel comes about only by sending someone the link.
No. The streak belongs to the Daily Sprint, and a duel result appears on no public board.
The round times of a finished duel are deleted after a while — how long is set out in the privacy statement, in the section “Storage periods and deletion”. What remains is a single line: two names, the result and the date.
No and no. A duel runs free of charge in your browser, and you play without signing up. You do need saved progress on this device, though, and so does the other side. A duel runs over two days, so striduel has to remember this browser; otherwise your duel would be gone the moment you close the tab. It is the same random key that “save progress” already uses: no second identifier, no email address, nothing to type in. It changes nothing about the leaderboard. You are asked when you create or accept a duel.