Today’s Mancala Duel
The same starting position for everybody, generated from today’s date, and the same opponent across the board from all of you.
Both sides begin with the same number of stones, arranged differently. That is on purpose: scattering each side independently would hand somebody the better half of the board, and “did the seed like you today” is not a measurement of anything.
The opponent plays identically for everyone
Playing against a computer would normally disqualify a game from being a daily. If the opponent behaved differently for different people, two scores could not be compared, and the leaderboard would be measuring the opponent rather than the players.
This one contains no randomness at all. It works out its reply purely from the position in front of it, so every player in the world meets the same opponent giving the same answers to the same moves. Play the same line as somebody in another country and you will see the same game, move for move.
It is also tuned to be beatable rather than impressive. A thoughtful first attempt lands somewhere around even — the aim is a result worth comparing, not an opponent that wins.
Undo is a real second look
Because the opponent is entirely predictable, taking a move back shows you what would genuinely have happened rather than rerolling it. Undo reaches back past their reply to your own decision, so you can try a different branch and see the true consequence.
That makes exploring cheap. If a promising chain fizzles out, wind back and take the other route.
How it is scored
The final margin — your stones minus theirs.
A narrow loss records a real result and ranks above a heavy one, so a close game is always worth playing out rather than abandoning. Time only breaks ties between equal margins.
Winning is what keeps your streak, which is a higher bar than the solitaire games here. That is only fair because undo reaches back as far as you like: a winning line exists to be found, and the margin and the clock are what separate one player from another.
The streak
Any single daily on the site keeps your streak alive — there is one streak covering every game. On a day when this one is not going your way, something shorter will do the job just as well.
Past boards stay playable in the archive, regenerated from their own dates.
New to chaining extra turns, or unsure what to keep out of their reach? The Mancala Duel strategy guide covers both, with unlimited practice games beneath it.
Prefer no opponent at all? Mancala Solitaire is a pure planning puzzle where every layout can be cleared completely.