## Move 1 stick to make 4 closed shapes with 3 or 4 sides matchstick puzzle

Move 1 stick to make 4 matchstick shapes of triangles, squares or rhombuses. How many such new figures can you make? Recommended time 10 minutes.

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Easy to hard brain teasers with systematic solutions. Matchstick puzzles, riddles, math puzzles, logic puzzles are some of the types.

Submitted by Atanu Chaudhuri on Tue, 29/09/2020 - 23:46

Move 1 stick to make 4 matchstick shapes of triangles, squares or rhombuses. How many such new figures can you make? Recommended time 10 minutes.

Submitted by Atanu Chaudhuri on Mon, 14/09/2020 - 17:58

How to make 4 triangles with 6 sticks! Add 3 matches to the single matchstick triangle and make 4 triangles with 6 sticks. Time to solve 5 minutes. Can you?

Submitted by Atanu Chaudhuri on Sun, 16/08/2020 - 20:29

Two Exponent and base puzzles: Both exponent and base of the term in LHS are quadratic equations in single variable and it equals 1. Time to solve 15 mins.

Submitted by Atanu Chaudhuri on Tue, 04/08/2020 - 22:53

World's hardest easy geometry problem is to be solved by elementary geometry only and that makes it hard. Hint: Increase symmetry in the puzzle figure.

Submitted by Atanu Chaudhuri on Tue, 28/04/2020 - 22:05

In this matchstick triangle puzzle you have to remove 2 matchsticks to reduce number of triangles from 8 to 6. How many ways can you do it? Time 30 mins.

Submitted by Atanu Chaudhuri on Sun, 26/04/2020 - 21:39

Find the 10 digit number with each digit different and each number formed by first n digits divisible by n. Step by step solution by basic math explained.

Submitted by Atanu Chaudhuri on Wed, 08/04/2020 - 20:40

In this second 8 balls weight puzzle, find the fake ball in 3 weighs. All 8 balls look alike and you are given a pan balance without any weights.

Submitted by Atanu Chaudhuri on Mon, 06/04/2020 - 20:24

In this first 8 balls weight puzzle, find the single heavier ball in 2 weighs. All 8 balls look identical and you are given a mechanical balance with no weights.

Submitted by Atanu Chaudhuri on Sun, 05/04/2020 - 00:28

3 couple river crossing puzzle: King, minister, washerman and their wives to cross river in a boat that can carry only 2 at a time. A tantalizing puzzle...

Submitted by Atanu Chaudhuri on Sat, 04/04/2020 - 14:59

River crossing puzzle 3 monkeys and 3 humans: To cross river in a small boat that can carry at most 2. Monkeys will eat up humans if more in number...