Questions tagged [seven-segment]

A puzzle that involves seven-segment displays, more commonly referred to as "digital" displays.

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2
votes
3answers
238 views

Reversible number problem

These are the reversible numbers In this example we have an operation that on one side gives the result 6 and turning it gives it 12. Is it possible using reversible numbers and mathematical ...
5
votes
1answer
231 views

Seven-Segment Telephone

The ideas and concocted tools I used to solve these two puzzles allowed me to make this puzzle. Credit to TSLF for the inspiration! Light up some of the edges in the grid on the left such that the ...
4
votes
1answer
269 views

Number Box Puzzle

All digits from 0-9 as shown are 1 in. thick and within 3x5 in.dimesion except number 1. The task is to put all the numbers inside the square box with smallest dimension nxn without overlapping of ...
12
votes
2answers
433 views

Square Crayon Sticks

Ten sets of crayons forming all the digits from 0 to 9 can be moved, flipped, rotate and intersect without changing their digital forms. What is the maximum number of 1x1 stick squares that can be ...
12
votes
4answers
446 views

Fitting 7 Segments Digits on Smallest Rectangular Grid

On the 2 x 1 grid all 7- segment digits above can be formed one at a time as seen on clocks, calculators and other digital devices. If we are allowed to flip or rotate and overlap segments, how should ...
6
votes
2answers
434 views

Seven Matches Digits

a) Remove some of the match sticks from the above 2 x 2 x 1 surface grid to reveal the figures below. Rotation, flipping, segment sharing are allowed. b) Place some match sticks on the above 1 x 1 x ...
5
votes
1answer
345 views

Sticking Numbers

Try to figure out the answers from the 2 patterns below. Find all the 10 digits first. Rotate if necessary. A: What is the missing number? [?] [10] [11] [9] [11] B- What is ...
0
votes
5answers
268 views

What is the largest possible positive number on an 8-segment array? (repeated symbols allowed) [closed]

This is a follow-up to the question, What is the smallest possible positive number on an 8-segment array? However, this time repeats are allowed! You are provided with the 8-segment array in the ...
5
votes
7answers
1k views

What is the smallest positive number on an 8-segment array? (no repeats) [closed]

You are provided with the 8-segment array in the picture together with all the necessary electronics to make any combination of lit segments you want. Fillable version for graphics. http://i.stack....
27
votes
1answer
2k views

Smashing Seven Segments

The Setup Consider a 5-by-5 grid of 7-segment displays, "smashed together" so that the peripheral segments of neighbouring displays overlap (see below).             ...
9
votes
1answer
1k views

Seven Segment Cipher

In math class I asked my friend what she did for a job. She simply handed me this note. What does it say? Note: You may need a calculator! Then again, you may not...
12
votes
6answers
8k views

Greatest Digital Clock Number, with a Twist!

7 segments make up a number, some visible, some invisible. Just like on a digital clock: 88:88 or 04:00: There are 2 vertical segments on both sides and 3 horizontal segments in the center. What's ...
15
votes
3answers
2k views

The defective clock

James has a defective clock in his room. The clock is digital, and some of the seven bars on its units digit are broken. A bar that works is on when it should be and off when it should be, whereas a ...