Before you see the question, pick 1, 2 or 3 bids. Fewer bids, more points: up to 2,000, 1,600 or 1,400. More bids buy hints.
Each question hides a number. Bid a number you think is lower. Under? It holds. Over? Round lost.
Bank to keep the points, or Raise to bid higher. Each bid must beat your last. The closer you stop to the answer, the more you get.
One bid above the answer and the round pays nothing. The answer shows when the round ends.
A round pays up to 2,000, 1,600 or 1,400 by the bids you chose, times (bid ÷ answer)1.5. Stopping early is safe, but it pays less. Pushing is where the points are.
Because that is the game. A surviving bid only tells you the answer is higher. The one exception is a hint, which a second or third bid can buy. Every raise is still a real decision.
The floor. The answer is guaranteed to be at or above it, so a bid at the floor would be a free score. That is why your first bid has to be above it.
You declare before you see the question, knowing only the category. One bid plays for up to 2,000 but gives you no information. Three bids let you feel your way up, with a hint after each of the first two bids that hold, for up to 1,400.
A hint. After each bid that holds with a raise left, you get one: a figure from the question's workings, or whether the answer is at most double your bid.
Dead on. The round ends immediately with the full 2,000, 1,600 or 1,400 your bids allowed. There is nothing left to climb.
No. Daily is five questions, the same for everyone, once a day. Once you have seen an answer you cannot bid against it honestly, so replaying it would only be a way to lie to yourself. When you are done you can review what you did, and the next five arrive at midnight UTC.
Every question has a named source, shown when the round ends. If you think an answer is wrong, the source is where to check.
Open Match, start a challenge, play your run, then send the link. They play the same questions blind, and your climb is drawn next to theirs after each round they resolve. Live rooms, where everyone plays at once, come later.