When the lights go out, simple matters
A power cut has a way of stripping the evening down to basics. No lights, no router, patchy signal if you are lucky, and one phone battery that suddenly looks important. If your 11 year old is already done with staring out of the window, you need something that works now and does not ask much from the device.
That is where Dots & Boxes makes sense. It is plain. You join dots, close boxes, and try to take more squares than the other player. Two people can share one phone or tablet, or one person can play against the computer. A round is usually 5 to 10 minutes, which is useful when you do not know whether the lights are coming back in five minutes or after bedtime.
GameJar is good in this specific sort of minor domestic collapse because the games work with no signal after one online visit. So if the device has opened the game before the router gave up, you are fine. No account is needed to play, which is one less thing to be annoyed by in the dark.
How Dots & Boxes holds up during a power cut
The main question here is not whether the game is good in general. It is whether it is still worth using when the house is quiet, the router is dead, and you are watching the battery percentage with the concentration usually reserved for auction bidding.
Session length
This is one of the stronger points. A game of Dots & Boxes is short enough to fit the situation. If the lights come back halfway through, nobody has committed to a long session. If they do not, you can play another round without making the evening feel like a siege.
That short session length also helps if your child is unsettled by the dark and wants something structured but not demanding. There is a clear start, a clear end, and the rules do not need much explaining. Join dots. Try not to hand the other player an easy square. Close boxes when you can. That is the job.
One hand or two
It works fine with one hand if you are holding a torch in the other, or trying to do three things at once because the freezer is beeping and someone wants a blanket. Tapping lines between dots is not fiddly in the way some puzzle games can be. If two people are playing pass-and-play, each person can take a turn, hand the device back, and carry on.
It is also usable if your child is curled up under a blanket in one corner of the sofa and would rather not move much. You do not need a table. You do not need much space. You just need enough screen to see the grid.
Sound
Sound is not important here, which is helpful. During a power cut you may well want to keep the house quiet so you can hear whether the electricity is back, whether someone is at the door, or whether the child upstairs has decided this is the right moment to become nervous about stairs. Dots & Boxes does not depend on audio cues. You can play in silence.
Battery
This is the big one. No game is free in battery terms, because the screen is on and the device is doing something. But Dots & Boxes is modest. It is a simple pass-and-play board game on one screen, with short rounds and no need for the router. You are not streaming anything. You are not waiting on a connection. You are not signing in. Open it, play a round, close it again.
That makes it easier to ration the phone. A couple of rounds can fill ten or fifteen awkward minutes without feeling wasteful. In a power cut, that matters more than people usually admit.
Getting set up before the signal goes
If you know the weather is looking unhelpful, or the power in your area has a habit of dramatic exits, do the sensible thing before the router has ideas. Open Dots & Boxes while you are still online. Once it has been visited online, the game is stored on the device and will play with no signal, including in airplane mode.
That is the key practical point for GameJar. The game does not need an account to play, and a player profile is only a name and a colour stored on the device. So setup is brief. Open the game once. Make sure the page loads. Then forget about it until you need it.
If you are planning ahead, it is also worth opening one or two other games from the same set, but only if they fit the same low-fuss standard. For another two-player option, Connect Four gives you the same one-device setup with slightly more immediate head-to-head play. There is a useful overview here: Connect Four With No Wi-Fi | GameJar. If your child wants a solo word game instead, Guess the Word With No Wi-Fi | GameJar covers how that works offline.
What you do not need to do is create accounts for everyone, connect to friends, or sort out any online multiplayer. There is none of that. In this context, that is a benefit, not a limitation.
Where it falls short during a power cut
Dots & Boxes is useful here, but it is not magic.
The main weakness is that the best version of it during a power cut is usually two people sharing one device. If your child wants to play alone, they can play against the computer, but the game still feels most natural as a small contest with another person. If you are busy dealing with torches, candles, or the general household mood, you may not be available for repeated rounds.
It can also feel a bit dry if your child wants something more absorbing. The point is to join dots, close boxes, and think a move ahead. That is enough for plenty of children, especially in short bursts. But if they want a puzzle that will occupy them quietly on their own for longer, Dots & Boxes may not be the best fit for this exact moment.
That is where one alternative helps. Guess the Word is solo, quick to grasp, and gives them a daily word plus unlimited practice rounds. It suits the same no-router situation and does not need another person free to play. If you want a fuller explanation first, there is Guess the Word: How It Works | GameJar.
The other reasonable alternative is Connect Four. It covers the gap if what your child really wants is a cleaner two-player duel with very obvious turns and a familiar goal. During a power cut that can be better for siblings, because there is less explaining and less slow circling around the board. Drop a counter, see what happened, pass the device. Simple is useful when the lights are out.
The practical verdict
During a power cut, Dots & Boxes does what you need from it. It works with no signal after one online visit. It does not ask for an account. It is quiet, short, and clear. It uses one device for one or two players, which is often exactly the compromise available when the router is dead and everyone is suddenly interested in the same phone.
It is not the game for every child in every blackout. If they want a longer solo distraction, look elsewhere in GameJar. If they want a quick back-and-forth on one screen without much setup, this is one of the better options.
In other words, it is competent. During a power cut, competent is a high bar.
FAQ
Does Dots & Boxes need Wi-Fi during a power cut?
No. After one online visit, the game is stored on the device and works with no signal. If the router has already gone off, it will still play as long as the device opened it before.
Can my child play Dots & Boxes alone if the power is out?
Yes. Dots & Boxes can be played by one person against the computer, or by two people on one device. If nobody else is free, solo play still works.
Is Dots & Boxes a good choice if my phone battery is low?
It is a reasonable one. The rounds are short, the game does not need the router, and there is no account step to get through first. The screen still uses battery, of course, but this is a fairly restrained way to fill a few minutes.
Do two players need separate devices?
No. Two players use one phone or tablet and take turns on the same screen. There is no online multiplayer.
What should I open in advance in case the lights go out?
Open Dots & Boxes once while you still have internet, so it is stored on the device. If you want a backup, open one or two others you are actually likely to use, such as Connect Four for another two-player option or Guess the Word for solo play.