30 August 2015

282. Mathematical: 8 plus 3 is not 7

Easy Medium Hard Extreme


Move 2 matchsticks to make the equation true.

29 August 2015

281. Remove 4 leaving 7 squares

Easy Medium Hard Extreme


REMOVE 4 matchsticks to leave 7 squares. The squares don't have to be equal in size.

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23 August 2015

280. Moving adjacent matchsticks

Easy Medium Hard Extreme


This puzzle is similar to but different from number 125.

Place 6 sticks as shown in Figure 1. The challenge is to end as shown in Figure 2 with adjacent matchsticks pointing in opposite directions.

Start by picking up 2 adjacent sticks and place them next to the others (to the left or right of the layout) and continue doing this until you get to the layout as shown in Figure 2. The following rules apply when moving the 2 sticks:

1. The 2 sticks must be moved simultaneously.
2. The 2 sticks you move must be adjacent.
3. The 2 sticks you move may not be turned around vertically.
4. The 2 sticks you move may not change positions.

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22 August 2015

279. Remove 16 leaving 13 squares

Easy Medium Hard Extreme


You must remove 16 matchsticks to leave 13 squares. The squares must all be equal in size.

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18 August 2015

278. Create 2 squares and 5 rectangles

Easy Medium Hard Extreme


Move 2 matchsticks to create 2 squares and 5 rectangles. All the matchsticks must be flat on the surface.

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The 2 squares are easy to identify. The 5 rectangles are:

1. ABFE
2. BCGF
3. CDHG
4. ACGE
5. BDHF

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15 August 2015

277. Move 8 to create 18 squares

Easy Medium Hard Extreme


Move 8 matchsticks to create 18 squares. The squares don't have to be equal in size.

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There are 16 squares of size 1X1, 1 of size 3X3 and another 1 of size 5X5.

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14 August 2015

276. Move 2 to create 2 squares

Easy Medium Hard Extreme


It is easy to move 2 sticks to create 3 squares, but can you move 2 matchsticks to create exactly 2 squares? The squares don't have to be equal in size.

10 August 2015

275. Move 6 to create 4 equal squares

Easy Medium Hard Extreme


Move 6 sticks to create 4 squares, all equal in size.

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09 August 2015

274. Divide into 2 equal halves.

Easy Medium Hard Extreme


Divide the figure above into 2 halves by adding two matchsticks. The 2 halves must be equal in size and shape.

02 August 2015

273. Triangle 3X3: Remove 7 leaving 3 triangles

Easy Medium Hard Extreme


Remove 7 matchsticks to leave only 3 triangles. The triangles don't have to be of the same size.

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01 August 2015

272. Move 2 to create 4 squares

Easy Medium Hard Extreme


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

31 July 2015

271. Mathematical: 1 plus 1 is 2

Easy Medium Hard Extreme


The figure above shows that 1+1=2. It is true, but can you MOVE 2 matchsticks so that the equation is still true?

24 July 2015

270. Double the size

Easy Medium Hard Extreme


The area of the figure shown above is 3 square units. How can you double that area by rearranging the matchsticks and adding 2 more?

18 July 2015

269. Move 6 to create 18 parallelograms

Easy Medium Hard Extreme


There are 20 triangles in the above figure. (12 of size 1X1, 6 of size 2X2 and 2 of size 3X3)

Move 6 sticks to create 18 parallelograms. There must be no remaining triangles in your solution.

12 July 2015

268. Roman Numerals: 5 minus 5 is not 5

Easy Medium Hard Extreme


The equation above shown with Roman numerals is not true. MOVE 1 matchstick and ADD 1 matchstick to make it true.

07 July 2015

267. Move 5 to create 7 squares

Easy Medium Hard Extreme


Move 5 matchsticks to create 7 squares. The squares don't have to be equal in size.

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05 July 2015

266. Create 6 rhombuses and 1 triangle

Easy Medium Hard Extreme


This puzzle is similar to but slightly different from puzzle 233.

Shown in the figure are 7 triangles. Move 6 sticks to create 6 rhombuses (or diamonds) and only 1 triangle.

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04 July 2015

265. Move 4 to create 5 triangles

Easy Medium Hard Extreme


Move 4 matchsticks to create 5 triangles. The triangles don't have to be equal in size.

03 July 2015

264. Square 4X4: Remove 4 Leaving 14 squares

Easy Medium Hard Extreme


Remove 4 matchsticks leaving 14 squares. The solution must include squares with sizes 1X1, 2X2 and 3X3.

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02 July 2015

263. Move 1 stick to create 8 squares

Easy Medium Hard Extreme


This puzzle is similar to but slightly different from puzzle 198.

Move only 1 matchstick to create 8 squares. 5 of the squares must be of size 1X1, 2 of size 2X2 and 1 of size 3X3.

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27 June 2015

262. Triangle 3X3 : Remove 6 leaving 3 triangles

Easy Medium Hard Extreme


Remove 6 matchsticks to leave 3 triangles. The triangles don't have to be equal in size.

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21 June 2015

261. Remove 22 sticks leaving 4 equal squares

Easy Medium Hard Extreme


Remove 22 matchsticks leaving only 4 squares. The 4 squares must be equal in size.

20 June 2015

260. Remove 3 sticks leaving 5 squares

Easy Medium Hard Extreme


Remove 3 sticks to form 5 squares. The squares must all have the same size.

19 June 2015

259. Northerly Fish Southerly Fish

Easy Medium Hard Extreme


Move 3 sticks to change the direction the fish so that it swims from North to South.

14 June 2015

258. Square 2X2: Move 4 creating 2 squares

Easy Medium Hard Extreme


Move 4 matchsticks to create 2 squares. The 2 squares don't have to be of the same size.