Why the extra rank on each side in 4 player chess? - Chess Stack Exchange

Why do we have an extra rank (marked with the red lines) on each side in 4 player chess? What could be the possible logic? (screenshot is taken from chess.com)

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I've developed ChessMonitor: a website to show statistics for players based on Lichess and Chess.com games. Here is an example for Hikaru. You can also get your own page! (link in comments)

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Any idea why Stockfish wants me to have sacrificed my bishop for a pawn? It is the way to win a pawn. But it loses a bishop with no compensation. : r/chess

Caro-Kann: A Complete Chess Opening Repertoire vs 1.e4

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A Fascinating Prisoner's Puzzle. Exploring different approaches to this…, by Declan Brennan

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