Jun 6, 2025 · This is a reverse Wordle-style puzzle. Instead of guessing the word, you need to deduce both the sequence of guesses and the final secret word, using only the five hint patterns. Visually it …

Feb 27, 2026 · The Rainbow Chess Piece is defined as a Chess Piece that initially is a Queen and transforms to the next piece every time it moves in this order: Queen, King (ladies first!), Rook, …

Jan 3, 2026 · Find the number of ways to cut a 6x6 grid of unit squares along the grid lines into two connected pieces that are identical in shape. Here is one example. Note that two solutions are …

Oct 1, 2024 · From the 2011 South African Junior Olympiad: Several people line up in single file. A solitary latecomer wishes to join the queue. Prove that it is always possible for them to join the line …

Nov 6, 2024 · Consider a coin-flipping game that costs $1 to play. If heads, I win $3. If tails, I win nothing. I start playing this game with $100, and continue playing infinitely. Am I guaranteed to …

Nov 26, 2023 · Note I originally tried to ask a variation of this question on math.stack; however 1 commenter pointed out that math.stack is not a puzzle site, which made me think maybe the fine …

Nov 8, 2024 · I received a message by a recruiter: Hello, I hope this message finds you well. I am a recruiter at [REDACTED]. I came across your profile and was impressed by your background and …

Feb 24, 2025 · Re "Edge pieces and corner pieces are equally like to be found". I dispute this, since there are about 30 times the number of edge pieces as corners. And I too look for edge pieces first, …

This is the December 23rd puzzle from Matthew Scroggs' annual puzzle advent calendar. It has me stumped, so I'm looking for a hint on how to proceed. The text of the puzzle is below: In a grid of

Jul 25, 2023 · Now this: Eh? The given sentence, when decoded, says: "Show a picture of the Great Wave off Kanagawa as your answer", so that's what I did. Fellow solver z100 has already employed …