Mind Loft
Logic · Sunday, October 11, 2026

ErgoSunday Edition

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A few rules, one fact, 12 statements.

Today it is The Summit Team. Each person either does the day’s one thing or does not, the rules always hold, and one fact is given. File each statement as must be true, could be true or cannot be true, then rule on it once.

Ergo, in short

How do you play Ergo?

A small cast, a handful of if-then rules about who does what, and one fact for today. Sort nine statements into must be true, could be true and cannot be true. Twelve on Sundays.

Is Ergo free to play?

Yes. Ergo is free to play in your browser on Mind Loft, with no app to install and no account required.

When does a new Ergo puzzle come out?

A new Ergo arrives every day at midnight Eastern time, and Sundays bring the Sunday Edition, the biggest or hardest board of the week.

What kind of puzzle is Ergo?

Ergo is a daily logic puzzle from Mind Loft: must, could or cannot. Puzzle type: if-then reasoning. It is part of the daily logic puzzles lineup.

Can I play past Ergo puzzles?

Yes. Every past Ergo board is in the puzzle archive, a tap away by day.

What other daily logic puzzles does Mind Loft have?

Docket, Plot, Alibi and Jesters, among others. The Logic puzzles page lists every one, with a new board for each every day.