Here is a new retrograde chess puzzle! Depicted below is the final position of this game which White managed to end with a nice back-rank mate. In the course of this game, the white king went on an adventurous journey that somehow took him up to f7. How did that happen? Can you determine the firs...

This is part 74 of the puzzle series Around the World in Many Days. Each part is solvable on its own. Dear Puzzling, Today I have enjoyed the views over a seafront metropolis from the observation deck of its most iconic landmark. Can you guess where I am? Love, Gladys. 1. Alternative to 9, to c...

What do you see below? (Explain your reasoning) | | |6 | | 3\ | \ / \ / 7\ /1 \ / ...

There is a 3-dimensional grid (semi-infinite in all the three directions). Each cell of the grid contains at most one duck. You are allowed to remove a duck from a cell, but only if the cell above it, the cell to the right of it, and the cell in front of it are all empty. If you do remove a duck ...

Here is some enigmatic text from 1 to 10 (sort of). What three letters fit in the missing places (marked by ?), which anagram to a three letter word? (don't need the actual positions, just the final word and an explanation) 1. S?T?TFS II. WHEN O?IE V. 1 RUNG XV EE HERE 10.