Can somebody please explain why this checkmate is a blunder? : r

The Corbomite Maneuver (episode), Memory Alpha

Tackle Scholar's Mate: Punish in 2 Moves! A Guide to Counter Queen Attacks - Remote Chess Academy

Checkmate DR1-EN251 Yu-Gi-Oh! Card Light Play Unlimited

How to Read Chess Moves In Algebraic Notation - The New York Times

Ratnas Junior Challenger Chess Board Game For Kids & Adults 8+ Years

Covid-19 Data Visualization by R (ggplot2) - New Cases vs Deaths

The Test of Time by Kasparov, Garry

Checkmate! Forty Questions with Hikaru Nakamura

Quick Red widgets for reddit by Andrew Farquharson

BobbyBoJanglles – You have to know this (Checkmate in 8) Lyrics

Sunni vs Shi'a: The Middle East Chessboard (Part 2/2) - Fair Observer

Xiangqi - Wikipedia

In professional chess, if you made a blunder and it is your move but the next move by your opponent will inevitably mean checkmate, is it bad etiquette to resign? - Quora

No Longer a Chess-Engine Virgin