What does double-check mean in four-player chess on chess.com

The rule says: Delivering a double-check is worth +5, and triple-checks are worth +15 Is a double check when I am checking two players at one move checking one player with a normal double check

Is a Chess.com Premium Membership Worth It? (2022)

Updates to 4 Player Chess - Chess Forums

White to move. This position is a win in lichess, draw in chess.com. : r/ chess

Chess Variants 5 Amazing Examples

4 Player Chess - Chess Forums

How to Play Chess: Setup, Rules, & Gameplay

What are Double Check and Discovered Check in chess?

How to Win at Chess (with Pictures) - wikiHow

Four-player chess - Wikipedia

How to set up a 4 Player Chess game to play with your friends - Chess Forums

Vonset Core L6 Computer Chess Game Electronic Chess Set Computer Chess Board with LED Light Chess Computer for Adults and Kids with Double Queen Pieces for Beginners : Everything Else

How to Play Chess: Setup, Rules, & Gameplay

Rules of Chess: Check, Mate, and Stalemate

Four Circular Chess – Green Chess

4-handed chess - Chess Forums