24 June 2017

526. Move 4 to create 2 squares

Easy Medium Hard Extreme


Move 4 matchsticks to create 2 squares. The 2 squares don't have to be equal in size.

23 June 2017

525. Move 3 to create 9 squares

Easy Medium Hard Extreme


Move 3 matchsticks to create 9 squares. The squares must be equal in size.

17 June 2017

524. Invalid Roman numeral

Easy Medium Hard Extreme


Think out of the box...

What you see above is an invalid Roman numeral. Move 5 to form TWO.

16 June 2017

523. Balance the scale: Add 1

Easy Medium Hard Extreme


The vertical matchsticks on the scale all have the same weight. To balance the scale you need to add 1 more matchstick. Where would you place it?

Show Answer

In the original puzzle:
Left of balancing point: 4 + 2 + 1 + 1 = 8 units
Right of balancing point: 3 + 3 + 4 = 10 units

From the above we can see we need to add 2 more units to the left of the balancing point. This is done by placing the matchstick as shown in the solution.

Hide Answer

10 June 2017

521. Three numerical rows

Easy Medium Hard Extreme


The letters in each of the 3 rows represent a series of numbers. Can you figure out the numbers of each row?

Show Answer

The letter in each row is the FIRST letter of:

Row 1: One, Two, Three, Four
Row 2: Ten, Twenty, Thirty, Forty
Row 3: Hundred, Two hundred, Three hundred, Four hundred

Hide Answer

03 June 2017

520. Equal to two

Easy Medium Hard Extreme


Another sneaky one...

Move 1 matchstick to equal the number two.

02 June 2017

519. Move 1 to create 2 squares

Easy Medium Hard Extreme


This puzzle is really easy, but many people struggle to see the answer immediately! How long does it take you?

Move only 1 matchstick to create 2 squares.

27 May 2017

518. Rectangle 4X3: Remove 3 to leave 9 squares

Easy Medium Hard Extreme


Remove 3 matchsticks to form 9 squares. The 9 squares must all be of size 1X1. There may not be any squares of size 2X2 or 3x3.

Show Answer

There are also other solutions.

Hide Answer

21 May 2017

517. Increase the inner triangles

Easy Medium Hard Extreme


In the figure above 10 matchsticks were placed on a grid to form 8 inner triangles.

What is the maximum number of inner triangles you can create by rearranging the 10 matchsticks?

Show Answer

The maximum number of triangles is 14.

Hide Answer

19 May 2017

516. Triangle 3X3: Take away 3 to leave 6 triangles

Easy Medium Hard Extreme


TAKE AWAY 3 matchsticks to leave 6 triangles. The triangles must all be equal in size.

07 May 2017

514. Divide square into 4 equal parts

Easy Medium Hard Extreme


This puzzle is similar to but different from Number 507.

Add 10 matchsticks to the 4X4 square above to divide it into 4 equal parts. The 4 parts are allowed to have different shapes but the sizes must be exactly the same. No matchsticks may be broken.

Show Answer

There are also other solutions.

Hide Answer

06 May 2017

513. Rectangle 4X3: Remove 4 to create 8 squares

Easy Medium Hard Extreme


There are 20 squares in total in the layout above:

2 of size 3X3 (ADUR and BEVS)
6 of size 2X2 (ACNK, BDOM, CEPN, FHTR, GJUS and HLVT)
12 of size 1X1

Take away 4 matchsticks to leave only 8 squares all equal in size.

05 May 2017

512. The 7 small triangles

Easy Medium Hard Extreme


Shown above are 3 triangles of size A and 1 small triangle of size B.

ADD 3 matchsticks to create 7 small triangles of size B and 3 of size A. The full length of each matchstick must form part of a triangle or triangles. All triangles don't have to be flat on the surface.

01 May 2017

511. Only 1 head in each node

Easy Medium Hard Extreme


The place where 2 or more matchsticks meet is called a node. How many matchsticks can you add to the grid above so that you only have 1 matchstick head in each node?

Show Answer

You can add 5 more matchsticks (in grey).

Hide Answer

30 April 2017

510. Take away 4 to leave 5 squares

Easy Medium Hard Extreme


TAKE AWAY 4 matchsticks to leave only 5 squares. All squares must be linked.

23 April 2017

22 April 2017

508. Move 2 to create 6 squares and 4 rectangles

Easy Medium Hard Extreme


Move only 2 matchsticks to create 6 squares and 4 rectangles. The following rules apply:

1. Squares must be equal in size
2. Rectangles must be equal in size
3. Not all squares or rectangles have to be connected

Show Answer

It is easy to see the 6 equal squares. The 4 equal rectangles are ACGE, BDHF, JLPN and KMQO.

Hide Answer

17 April 2017

507. Divide square into 4 equal parts

Easy Medium Hard Extreme


Add 9 matchsticks to the 4X4 square above to divide it into 4 equal parts. The 4 parts are allowed to have different shapes but the sizes must be exactly the same. No matchsticks may be broken.

14 April 2017

506. Triangle 3X3: Take away 6

Easy Medium Hard Extreme


Take away 6 matchsticks to leave only 4 triangles. Triangles don't have to be equal in size.

05 April 2017

504. Move 2 to create 9 squares

Easy Medium Hard Extreme


Move 2 matchsticks to create 9 squares. All the squares don't have to be equal in size.

Show Answer

Shown above are 8 squares of size 1X1 and 1 of size 2X2.

There are also other solutions.

Hide Answer

01 April 2017

503. Relationship of 4 figures

Easy Medium Hard Extreme


What is the relationship or link between the 4 figures above?

Show Answer

Remove the same 2 matchsticks from each figure and turn your head to the right. It forms the letters V W X Y.

Hide Answer

26 March 2017

502. Pathway with 19 matchsticks

Easy Medium Hard Extreme


19 matchsticks are used to form a pathway as shown above. The challenge is to start at a point, move in the direction of the matchstick heads and visit each of the 19 matchsticks only once.

A solution is not possible in the existing figure above, but by changing the direction of 2 matchsticks it can be achieved. Which 2 matchsticks would you change and can you find the route?

Show Answer

The direction of matchsticks 5 and 14 are changed.

The path starts with matchstick 1 and ends with matchstick 19.

Hide Answer

25 March 2017

501. Remove 1 leaving 9 squares

Easy Medium Hard Extreme


Take away 1 matchstick to leave you with only 9 squares. All squares don't have to be equal in size.

Show Answer

Don't miss the square of size 2X2.

Hide Answer