In a luxury hotel penthouse, a famous chess grandmaster was found dead. On the mahogany coffee table, a chessboard was set up with a mid-game position. Beside the board lay a glass of poisoned water and a handwritten note: 'Checkmate was my final move.' Detective Reed looked at the chessboard and knew the note was a lie. Why?
A checkmate ends the game, but the board showed a mid-game position with many pieces still active.
The note claimed a checkmate had occurred, yet the board depicted an ongoing mid-game position rather than a finished checkmate configuration.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Easy. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
More detective riddles
A wealthy merchant was found poisoned in his study. Next to his body was a notepad with four suspected accomplices' names written down: Mark, Nora, Paul, and Steve. Below the names was a cryptic note: 'The season of falling leaves brought my end.' Detective Sterling checked the calendar—it was currently April 15th. Sterling instantly solved the case. Who poisoned the merchant?
A famous pianist was found murdered in a soundproof recording studio. The heavy metal door was deadbolted from the inside. The air vents were too small for a mouse. How did the killer escape?
An art collector was found shot in his locked gallery. The room had no windows, and the heavy oak door was bolted from the inside. A small puddle of fresh, unfrozen water sat directly beneath the air conditioning vent, even though the AC unit had been unplugged for three weeks. Detective Vance looked at the puddle and solved the murder. What was the weapon?
An art collector was found slumped over his desk, a poisoned drink by his hand. A suicide note lay nearby, written in rushed, shaky handwriting. The note claimed he could no longer live with the shame of his recent forgery scandal. The detective glanced at the note, then at the collector's desk calendar, and immediately arrested the victim's business partner for murder. Why?
Inspector Okafor is checking the order in which five suspects left the locked library. Boris left before Kira. Aria left before Pavel. Pavel left before Jonas. Jonas left before Boris. Who left third?
A dead man is found in the middle of a desert, completely naked, holding a short piece of broken straw in his hand. There are no footprints around him for miles. How did he die?