When the lights go and the router goes with them
Daily puzzles are a decent fit during a power cut, with one obvious condition. The games need to be on the device already. If you have opened them once while you still had a connection, they will work with no signal after that. If not, a power cut is a poor moment to discover how much you were relying on the router.
The other issue is battery. When you do not know whether the lights will be back in ten minutes or four hours, a phone stops being a toy and becomes the thing you may need later. That makes short, quiet games useful. One puzzle a day helps here. There is a clear stopping point. Your kid can do the puzzle, be done with it, and hand the phone back without drifting into an endless scroll they did not mean to start.
For this particular category, the good news is simple. The daily puzzles in GameJar are solo, quiet, and small enough to fit into a strange half hour in a dim room. They also give everyone in the house the same puzzle on that day, which is useful if siblings want to compare answers later without needing to share a screen at the same time.
What a game needs during a power cut
A game during a power cut has to clear a more practical bar than usual.
First, it should work with no router. That rules out anything that needs a live connection. The daily-puzzles set here does not. After one online visit, the games are stored on the device and will play in airplane mode.
Second, it should be easy on battery. Bright, busy games are less appealing when the phone charge is at 23 percent and dropping. A single puzzle with a defined end is better than something that keeps asking for one more round.
Third, it should be quiet. If you are already dealing with torches, confused clocks, and a child asking whether the freezer is ruined, you do not need a game making its own contribution to the atmosphere.
Fourth, it should not need much setup. During-a-power-cut is not the moment for account creation, sign-in problems, or trying to remember a password by candlelight. Nobody needs an account to play these. A parent can optionally sign in to sync scores across devices, but nobody has to.
Last, it helps if the game still makes sense when attention is broken. Power cuts tend to involve interruptions. Someone is checking the fuse box. Someone else wants the portable charger. A good puzzle can survive being put down and picked back up without a full mental restart.
How the daily puzzles hold up
Mini Crossword
This is a strong fit. A 5x5 crossword is short enough to finish before the next household discussion about where the matches are, but not so short that it feels pointless. The clues give it structure, and the grid is small enough that an 11 year old can make progress without staring at a large blank expanse.
It is also useful that it has check and reveal helpers. During a power cut, patience is not always at its peak. If your kid gets stuck on one clue and starts spiralling into annoyance, those helpers keep the puzzle moving. That matters more than usual when the room is dim and everyone is already slightly off balance.
Battery-wise, this is about as sensible as screen time gets. It is mostly reading and typing, not rapid movement or long sessions. It is silent. It pauses cleanly. If the phone needs to be taken back for actual practical reasons, nobody loses much.
The limitation is obvious enough. If your child dislikes word clues, a crossword in low light may feel more like admin than relief. But as a one-puzzle-per-day option, this one earns its place.
Guess the Word
This may be the best match of the three for low battery and uncertain timing. The format is simple. There is one word for the day, and the player has six tries to find it. That gives the puzzle a natural boundary, which is exactly what you want when you are rationing charge and patience.
It also has a useful social feature without being a multiplayer game. Because the same puzzle appears for everyone on that day, people in the house can compare how they got on. One child can finish, hand the device over, and another person can try later on their own profile. No leaderboard, no chat, no online fuss, just the same word for the day.
If you want the details, Guess the Word: How It Works | GameJar explains the setup plainly. If your concern is the missing router, Guess the Word With No Wi-Fi | GameJar covers that directly.
The one catch is that unlimited practice rounds exist, so this can drift beyond the daily puzzle if you let it. During a power cut, the daily one is the sensible choice. Do that, stop there, keep some battery in reserve.
Picture Logic
This is the most variable fit. Picture Logic is a nonogram, where the numbers on each row and column tell you which squares to fill, and a picture appears as you solve it. One new puzzle appears each day, and every puzzle can be solved by working it out, with no guessing needed.
That last part matters. During a power cut, a puzzle that can be solved logically is better company than one that starts to feel arbitrary. Your kid can chip away at it, stop, come back, and continue from what they already know. There is less risk of the whole thing turning into random tapping because concentration dipped for a minute.
Where it is less ideal is length. Depending on the player, this can take longer than the other daily puzzles. If the battery is low-low rather than merely low, this may not be your first pick. It also asks for a bit more visual attention, which is fine on a charged phone in daylight and less appealing in a gloomy room with one lamp gone and everyone pretending they are calm about it.
Still, if your child likes methodical puzzles, this is a good use of dead time. It is quiet, solo, and it does not need the router once loaded. As daily puzzles go, it is the one most likely to keep a patient kid occupied without feeling flimsy.
What to do first, while you still have a connection
If the weather looks questionable, or your area loses power often enough that nobody acts surprised anymore, do the boring useful step in advance. Open the daily puzzles you might want to use later. In practice that means Mini Crossword, Guess the Word, and Picture Logic. Once they have been visited online, they are stored on the device and can be played with no signal.
It is also worth setting up a player profile before you need it. A profile is just a name and a colour stored on the device. No account is needed to play. That removes one more small irritation from a moment that will already have enough of them.
Then, when the lights go, keep the plan modest. Put the phone brightness down. Use airplane mode if you want to avoid the device wasting charge hunting for a connection that is not there. Pick one puzzle for the day, not a marathon. The point is to give your kid something calm and finite to do, not to discover how much battery a determined 12 year old can burn through in the dark.
If your child decides they would rather play with someone else than do a solo puzzle, that is a different category entirely. In that case, Connect Four With No Wi-Fi | GameJar is the relevant page, though it is not one of the daily puzzles covered here.
The short version
Daily puzzles suit a power cut better than most phone games do. They are quiet, bounded, and they do not ask much from the device once already loaded. The same puzzle for the same day also gives the house a shared reference point, which is surprisingly useful when normal routines have gone sideways.
The best fit is probably Guess the Word if you want the shortest session, Mini Crossword if your child likes clue-based puzzles, and Picture Logic if they prefer something slower and more methodical. None of this solves the lack of lights, obviously. But it does make the in-between time less tedious, which is often enough.
That is the practical case for GameJar during a power cut. Open the games once before you need them. Then, if the router gives up and the house goes oddly quiet, you still have something usable on the phone.
FAQ
Do the daily puzzles work if the router is off?
Yes, after one online visit. Once the games have been opened while connected, they are stored on the device and will play with no signal, including in airplane mode. If the power cut has already happened and the game was never opened before, that is less helpful.
Are the daily puzzles the same for everyone in the house?
Yes. In this category, one puzzle appears each day, and it is the same one for everyone in the house. That applies to Mini Crossword, Guess the Word, and Picture Logic.
Which daily puzzle is best when battery is low?
Guess the Word is usually the safest pick because it is short and has a firm end after six tries. Mini Crossword is also a good choice. Picture Logic can take longer, so it is better when the battery is low but not alarming.
Do we need an account to use GameJar during a power cut?
No. Nobody needs an account to play. A parent can optionally sign in to sync scores across devices, but that is not required. For just handing over a phone so your kid can do the puzzle of the day, there is nothing else to set up.
Are these daily-puzzles noisy or multiplayer?
No. They are solo puzzles. They do not have online multiplayer, chat, or a leaderboard outside the household. During a power cut, that is mostly a benefit. One person can do the puzzle quietly, finish, and pass the phone back.