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+# Egyptian Rat Screw (ERS)
+
+ERS is a fast paced game which can accomodate a wide range of number of players.
+
+Deal an entire standard deck of 52 cards face down to all players.
+The goal is to collect all the cards into ones own stack.
+
+Players pick up their cards and hold them in a stack face down.
+On each turn a player flips the top card of their stack face up onto the stack in the middle of the table.
+If the card played creates a matching condition or is a special card (see below) players race to slap the stack.
+Being the first to slap wins that player the stack, which they pick up into the bottom of their own.
+The player who picks up the stack then plays the next card.
+Play begins with the player to the left of the dealer and proceeds clockwise.
+
+# Matching Conditions
+
+A variety of matching conditions may be played,
+and usually players agree on a set of rules before beginning the game.
+
+Some common rules include:
+
+- Doubles: two cards of the same rank are played in a row.
+- Sandwich: two cards of the same rank are played with any single card between them.
+- Marriage: a queen is played on a king or a king is played on a queen.
+- Top and Bottom: a card is played which matches the rank of the bottom card of the stack.
+- Two to Ten: two cards are played which sum to ten. (Aces are worth one.)
+
+Some less common rules include:
+
+- Run: three or more sequential values cards are played in a row.
+- Add to Ten: the last set of cards (any number) sum to ten. 
+
+Keep in mind that some rules may overlap with others.
+For example, if a player plays a run of three cards and the last two sum to ten,
+then there are two matching conditions and players should slap regardless.
+
+# Special Cards
+
+ERS can be played with or without special cards which introduce some luck into the game.
+The special cards are ranked in order Jack, Queen, King, and Ace.
+When a special card is played the next player has a corresponding number of chances to play another special card.
+If the next player successfully plays a special card then the next player now has to do the same.
+This continues until some player fails to play a special card.
+The last player who played a special card then wins the stack.
+
+- Jack: one chance
+- Queen: two chances
+- King: three chances
+- Ace: four chances
+
+# Penalties
+
+You can choose to play ERS in a strict or relaxed manner.
+When playing strictly consider introducing penalties.
+
+- Slapping in error: a player who slapped when there is no match must give their top card to the player who played the last card.
+- Out of turn: a player who plays out of turn must give their top card to the player whose turn it was.
+- Missed slap: a player who places the next card when there was a match in the stack discards their top card into a discard pile, which is picked up along with the stack on the next successful slap.
+
+# Slapping In
+
+Optionally players may agree to allow slapping-in to the game.
+Players who have no cards may still slap the stack.
+This can make it very difficult to complete a game.