28 August 2016

435. Move 4 to create 4 unequal squares

Easy Medium Hard Extreme


There are 4 equal squares in the figure above. Move 4 matchsticks so that you still have 4 squares, but now all squares don't have to be equal in size.

27 August 2016

434. Matchstick heads only

Easy Medium Hard Extreme


It's easy to create a square with 4 matchsticks, but can you do it in such a way that only the 4 matchstick heads touch the surface?

26 August 2016

433. Mathematical: 8 plus 9 is not 4

Easy Medium Hard Extreme


Take away 3 matchsticks to make the above equation true. There are 3 correct solutions. Can you find them all?

21 August 2016

432. Triangle 3X3: Take away 2 leaving 8 triangles

Easy Medium Hard Extreme


Take away 2 matchsticks to form 8 triangles. Your solution must have triangles of 3 different sizes.

20 August 2016

431. Dominoes in a rectangle

Easy Medium Hard Extreme


Shown above are 5 domino tiles placed in such a way that it forms a big rectangle.

In how many different ways can you fit the 5 domino tiles into the big rectangle? You may only move the matchsticks on the inside of the big rectangle.

Show Answer

There are 8 ways to fit the domino tiles into the big rectangle.

Solutions A, B and C: 1 vertical- and 4 horizontal domino tiles.
Solutions D, E, F and G: 3 vertical and 2 horizontal domino tiles.
Solution H: 5 vertical domino tiles.

Hide Answer

19 August 2016

430. Move 3 to create 5 squares

Easy Medium Hard Extreme


Move 3 matchsticks to form 5 squares equal in size. All the squares don't have to be linked.

18 August 2016

429. Rectangle 4X2: Take away 5 to create 4 squares

Easy Medium Hard Extreme


Take away 5 matchsticks to create 4 squares. Your solution must have at least 1 square of size 2X2.

Show Answer

There are many other solutions.

Hide Answer

14 August 2016

427. Form 8 rows of 5 matchsticks

Easy Medium Hard Extreme


Use 24 matchsticks to form a shape with 8 rows of 5 matchsticks per row. The figure above shows the different ways of forming rows. (You should have 5 matchsticks per row and not 3 as in the examples.)

13 August 2016

426. Convert the snake into 2 squares

Easy Medium Hard Extreme


This puzzle is similar to but different from Number 425.

Move 2 matchsticks to create 2 squares. The 2 squares must be different in size.

12 August 2016

425. Convert the snake into 3 squares

Easy Medium Hard Extreme


This puzzle is similar to but different from Number 426.

Move 3 matchsticks to create 3 squares. The 3 squares must be different in size.

11 August 2016

424. Reduce from 4 to 2 square matchsticks

Easy Medium Hard Extreme


This puzzle is similar to but different from Number 412.

In the figure above 12 matchsticks are used to form 4 square matchsticks. Make sure to understand that A plus B is exactly 1 square matchstick.

Your challenge now is to rearrange the 12 matchsticks to form 2 square matchsticks. All matchsticks must be used and all matchsticks must be flat on the surface.

Solving this one without cheating means you are a genius!

Show Answer

It should be clear that A plus B is 1 square matchstick as well as C plus D.

Hide Answer

09 August 2016

08 August 2016

07 August 2016

421. Move 3 to create 6 squares

Easy Medium Hard Extreme


There are 9 squares in the layout above: 7 of size 1X1 and 2 of size 2X2.

Move 3 matchsticks to create 6 squares. All squares must now be equal in size.

06 August 2016

420. Mathematical: 7 minus 9 is not 3

Easy Medium Hard Extreme


The equation above is not true. Take away 2 matchsticks to make it true.

05 August 2016

419. Move 2 to create 3 triangles

Easy Medium Hard Extreme


Shown above are 2 triangles of sizes 2X2 and 4X4 respectively.

Move 2 matchsticks to create 3 triangles. The 3 triangles don't have to be equal in size, but you are not allowed to create 1X1 triangles.

03 August 2016

418. Two small and one big triangle

Easy Medium Hard Extreme


Shown above are 2 small and 1 big triangle. Move 3 matchsticks to change it into 2 big and 1 small triangle.

02 August 2016

417. Double the area

Easy Medium Hard Extreme


An area of 6 square matchsticks is formed with 14 matchsticks. Rearrange the matchsticks to double the area.

01 August 2016

416. The 100 metres

Easy Medium Hard Extreme


The above layout shows a distance of 100 metres. Move 2 matchsticks to convert it to the smallest possible distance.

Show Answer

10 millimetres. There are 1000 millimetres in 1 metre.

Hide Answer

31 July 2016

415. Triangle 3X3: Remove 7 leaving 4 triangles

Easy Medium Hard Extreme


Remove 7 matchsticks to leave only 4 triangles. The 4 triangles don't have to be equal in size.

Show Answer

There are also other solutions.

Hide Answer

30 July 2016

414. Add 4 to create 10 squares

Easy Medium Hard Extreme


Add 4 matchsticks to the layout above to form 10 squares. All matchsticks do not have to be flat on the surface and all squares don't have to be equal in size.

Show Answer

There are 4 squares of size ½X½, 5 of size 1X1 and 1 of size 2X2.

Hide Answer

29 July 2016

413. Break the ladder

Easy Medium Hard Extreme


Move 4 matchsticks to create 4 squares. The squares don't have to be linked, but must all be equal in size.

28 July 2016

412. Reduce from 4 to 3 square matchsticks

Easy Medium Hard Extreme


In the figure above 12 matchsticks are used to form 4 square matchsticks. Make sure to understand that A plus B is exactly 1 square matchstick.

Your challenge now is to rearrange the 12 matchsticks to form 3 square matchsticks. All matchsticks must be used and all matchsticks must be flat on the surface.

Show Answer

It should be clear that A plus B is 1 square matchstick as well as C plus D.

Hide Answer

27 July 2016

411. Triangle 3X3: Reduce size to one third

Easy Medium Hard Extreme


Reduce the size of the triangle to 1/3 of it's original size by moving 6 matchsticks.