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A player cannot reverse the action once a Joker placing with a natural tile.
Category - Rules
Protocols, regulations, etc.
The letter "X" shown to a hand's right indicates that the hand is an exposed hand, meaning you may call a tile and expose it to complete a pung, kong, quint, or sextet
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The NMJL does not sanction table rules, including but not limited to hot walls, cold walls, betting, and penalties.
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The letter "C" to a hand's right indicates one cannot call to expose tiles during the game.
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If two identical tiles are discarded, one right after the other, and someone calls the tile for mah jongg, it is the 2nd discarded tile that can be claimed.
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Zeros are not allowed in consecutive run hands as the runs must start with a one or higher.
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Singles and Pairs' hands' value isn’t doubled if a jokerless since they are already jokerless hands and the value built into them.
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Several situations can make a hand invalid or no longer viable (i.e., dead), too many or too few tiles, picking from the wrong end of the wall, an invalid combination of exposures (including those from a concealed hand).
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A player should not call their hand dead, even if their hand is no longer viable.
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