The Moscow Puzzles, Kordemsky

Created: August 03, 2023

A collection of 359 puzzles.

I’ve also wanted to memorise a list of puzzles, and them to [[The Anthology]]?. Some of the puzzles have diagrams which means I can’t reproduce them in here, but I’ve flagged the ones that require complicated diagrams with a “🏞️“, and ones that require a diagram but that isn’t too hard to remember with a “🎆”.

Spoilers ahead.

Amusing Problems

  • 1. 🏞️ Observant Children
  • 2. 🏞️ The Stone Flower
  • 3. Moving Checkers
    • Place dots like so: black, white, black, white, black, white.
    • Add 4 extra empty spaces on the end.
    • Checkers can moved in pairs, taking two adjacent checkers and sliding them to an empty space.
    • Can you make it: black, black, black, white, white, white, in only three moves?
  • 4. Three Moves
    • Place piles containing 11 things, 7 things and 6 things.
    • A move consists of adding exactly 11 things to the pile of 11, exactly 7 things to the pile of 7, or 6 things to the pile of 6, with the added things coming from just one other pile. Likewise for if you end up making a pile of 4 after one move, you can add 4 things to it.
    • Can you make all piles contain 8 things in just one turn?
  • 5. 🎆 Count!
    • Draw a pentagon and inscribe a pentagram inside. How many triangles in the picture?


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