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The Sunday Problem

Cover art © jenfri, via itch.io
Introduction
The Sunday Problem is a short browser simulation by developer jenfri about fitting a three-country trip into one weekend. The brief is tight: leave after work on Friday, return to your desk on Monday morning, visit three countries, sleep in a bed every night, and keep the total cost under budget. The board shows legs that can be caught, while options that fail a rule are still visible with the rule they break, such as an airport's minimum connection time or a 02:40 layover that does not count as a night. After a valid route is submitted, a solver compares it with the cheapest route it can find, points out an overlooked move, and offers one lesson. The experience is described as about eight minutes long, free, browser-based, with no account and nothing to install.
Games like The Sunday Problem
- 80 Days: Travel planning under time and money pressure, with route choices and trade-offs.
- Ticket to Ride: Route-building around connecting legs and committing to paths under constraints.
- Mini Metro: Planning efficient routes under constraints, with a focus on network layout.
Similar picks are based on the public description and tags, not playtesting.
Who it is for
Good fit if you are:
- Fans of travel puzzles
- Budget-focused planners
- Short browser breaks
May not suit:
- Players seeking long sessions
Highlights
- Plan a Friday-to-Monday trip across three countries.
- Stay under budget and sleep in a bed every night.
- Rule-breaking legs are shown with the rule they break.
- A solver compares a valid route with the cheapest option it finds.
- Free browser game with no account, about eight minutes long.
Screenshots

Questions about The Sunday Problem
What platform is it on?
It is a browser game, so it runs in the browser and nothing needs to be installed.
How much does it cost?
It is free, with no account required, according to the developer.
What is the main goal?
Plan a Friday-to-Monday trip through three countries, keep within budget, and sleep in a bed each night.
Does the game give feedback on routes?
Yes. A valid route gets compared by a solver, which shows the cheapest option it found, a missed move, and one lesson.
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