What does the †† notation mean? - Chess Stack Exchange

I am reading a book on chess openings called 51 Chess Openings for Beginners by Bruce Albertson and the author uses notation like so: †† Kxf7 What does the †† mean? I know a single † m

Handcrafted Beech Wood Chessmen: Made from strong and dense beech wood, each chess piece is carefully crafted with its accents done through

Husaria European International Wooden Chess Game Set Regal - 13.8 Inches Medium Size Chess Set with Handcrafted Chessmen and Felted Folding Board

opening - In a side line of the Italian Game: Classical Variation, Giuoco Pianissimo, why is blacks a point ahead here? - Chess Stack Exchange

algorithm - Which Data Structure is Best to represent a Three-Player Chess Board? - Stack Overflow

1950's Soviet Latvian Reproduced Chess Pieces Only in - Israel

How to read a chess notation - Quora

Software with tabulated notation - Chess Stack Exchange

From a lichess tactic I got wrong White to play and win. : r/chess

How is chess notation understood only by indicating the end cell for each color? - Quora