Yaniv Leviathan

Hacking until the machine learns, or I do
Yet Another Case of Infinitely Many Boxes 08 Sep 2024
Puzzle

Yet Another Case of Infinitely Many Boxes

Another variation on a classic

 The Gold Coin 08 Sep 2024
Puzzle

The Gold Coin

A simple puzzle with a surprising answer!

 Pirate Teleportation 02 Aug 2024
Puzzle

Pirate Teleportation

A cool continuation of an easy puzzle

 Guess the Polynomial 03 Aug 2023
Puzzle

Guess the Polynomial

An oldie but goodie easy puzzle

 Namelandia 09 Jul 2023
Puzzle

Namelandia

A nice infinite combinatorics puzzle

 (×2, +1) Equivalence 12 Mar 2022
Puzzle

(×2, +1) Equivalence

An beautiful puzzle

 P ≟ NP 14 May 2020
Puzzle

P ≟ NP

An beautiful complexity puzzle

 Implications of the Continuum 26 Apr 2020
Puzzle

Implications of the Continuum

An advanced set theory puzzle

 Speak Now or Forever Hold Your Peace 17 Apr 2020
Puzzle

Speak Now or Forever Hold Your Peace

A hard combinatorics puzzle

 Ball Pit 01 Mar 2020
Puzzle

Ball Pit

A hard data structure puzzle

 Don't Be Square 29 Feb 2020
Puzzle

Don't Be Square

An easy puzzle

 Attractive Triangle 24 Dec 2019
Puzzle

Attractive Triangle

A fractal puzzle

 Expanding Map 24 Nov 2019
Puzzle

Expanding Map

A cool algorithmic combinatorics puzzle

 Table Cover 23 Nov 2019
Puzzle

Table Cover

A cool geometric puzzle

 Finding Uniqueness 14 Dec 2018
Puzzle

Finding Uniqueness

An easy programming puzzle

 How To Armor Aircraft 28 Apr 2018
Puzzle

How To Armor Aircraft

An easy statistics puzzle

 The Bookie 06 Jun 2012
Puzzle

The Bookie

Two nice and easy gambling related riddles

 Monochrome Lizards 29 Mar 2011
Puzzle

Monochrome Lizards

An easy combinatorics puzzle

 Zeroing an Array in Constant Time 20 Jan 2011
Puzzle

Zeroing an Array in Constant Time

A cool and practical riddle

 Differing Neighbors 12 Jan 2011
Puzzle

Differing Neighbors

An easy combinatorics puzzle

 Prisoners with Bit Sequences 28 May 2010
Puzzle

Prisoners with Bit Sequences

A hard riddle

 The Better Half 19 May 2010
Puzzle

The Better Half

A cute and easy algorithmic riddle

 Reverse & Clean 17 Apr 2010
Puzzle

Reverse & Clean

An easy puzzle

 Rabbit Season 01 Mar 2010
Puzzle

Rabbit Season

A cool puzzle

 Fat Aunts 14 Jan 2010
Puzzle

Fat Aunts

Analysis puzzle

 Really Equal? Naturally! 03 Jan 2010
Puzzle

Really Equal? Naturally!

An algebraic puzzle

 Il Buono, il Brutto, il Cattivo 05 Jul 2009
Puzzle

Il Buono, il Brutto, il Cattivo

4 math puzzles

 Monty Hall Revised 09 Dec 2008
Puzzle

Monty Hall Revised

My twist on a well known puzzle

 Hats in a line 16 Nov 2008
Puzzle

Hats in a line

A generalization of an easy puzzle

 Valid Planar Pairing 24 Nov 2007
Puzzle

Valid Planar Pairing

Easy computational geometry puzzle

 Cucumber Feast 21 Nov 2007
Puzzle

Cucumber Feast

A combinatorics puzzle

 Uncountable Union 21 Nov 2007
Puzzle

Uncountable Union

A set theory puzzle

 Expanding Frogs 21 Nov 2007
Puzzle

Expanding Frogs

An easy geometry puzzle

 Pawns 05 Nov 2007
Puzzle

Pawns

A puzzle with potential

 Pirates! 13 Oct 2007
Puzzle

Pirates!

An easy puzzle

 Find the Duplicate 23 Aug 2007
Puzzle

Find the Duplicate

An easy algorithmic riddle

 Piece of Cake 23 Aug 2007
Puzzle

Piece of Cake

A collection of very easy riddles

 23 and 2000 13 Aug 2007
Puzzle

23 and 2000

An easy puzzle

 You Are in My Seat! 25 Jul 2007
Puzzle

You Are in My Seat!

An easy puzzle

 Spot the Not 25 Jul 2007
Puzzle

Spot the Not

A topology and real-analysis puzzle

 Blindfolded Flipping 25 Jul 2007
Puzzle

Blindfolded Flipping

An easy puzzle

 What are the Odds? 20 Jul 2007
Puzzle

What are the Odds?

A hard combinatorics puzzle

 Ants Revamped 14 Jul 2007
Puzzle

Ants Revamped

A cool continuation of an easy puzzle

 Two Envelopes 02 Jun 2007
Puzzle

Two Envelopes

An statistics puzzle

 Guess My Number 26 May 2007
Puzzle

Guess My Number

An easy combinatorics puzzle

 Whole Rectangles 25 May 2007
Puzzle

Whole Rectangles

A combinatorics puzzle

 Smart Disagreement 23 May 2007
Puzzle

Smart Disagreement

A philosophy puzzle

 Perl vs. Python One-Liner 20 May 2007
Puzzle

Perl vs. Python One-Liner

A code puzzle

 Find Your Name 13 May 2007
Puzzle

Find Your Name

A very hard combinatorics puzzle

 Ants 11 May 2007
Puzzle

Ants

An easy perception puzzle