Chess Variants/Monster Chess

Introduction
Monster Chess (also known as Super King Chess) is an asymmetric variant where White is allowed to move twice per turn.

History
It is not known where monster chess came from, but we know it is a rather recent variant.

Rules
Monster chess is played like an asymmetrical version of the standard game, with Black possessing the standard army and White only possessing their king and four pawns.

To compensate for the severe disadvantage in material, White is allowed to move twice per turn, rather than once. White may move one piece twice, or two pieces once.

The white king is allowed to use its two moves to pass through check, provided it ends on a square not under attack.

A king is considered to be in check is the opponent could execute a legal move or pair of moves that would result in the king being captured.

Otherwise, standard chess rules apply.

Sub-variants
This chess variant does not have any notable sub-variants.