Rules
There are two main varieties of progressive chess: Italian progressive chess and Scottish progressive chess (otherwise known as Scotch chess). The two have the following rules in common:
- A check must be escaped from on the first move of a series--if this cannot be done, it is checkmate and the game is lost.
- En passant captures of pawns are allowed if the pawn in question moved two squares in one move, but no further, at some point during the last turn, but the capture must be made on the first move of a series.
- If ten consecutive turns are played with no captures and no pawn moves, then the game is declared a draw unless one of the players can force a checkmate (this is the progressive chess equivalent of the fifty-move rule in orthodox chess).
- If at any stage a player has no legal moves but is not in check, the game is a draw by progressive stalemate.
Italian and Scottish progressive chess are distinguished by rules on when a player is allowed to give check:
- Scottish progressive chess: check may be given on any move of a series, but a check ends the series--all further moves that would otherwise be allowed are forfeited. This has no effect on the other player's next series--he will receive as many moves as he would have had the other player played his full series.
- Italian progressive chess: a check may only be given on the last move of a full series (for example, on move six, a check can only be given on the sixth move)--giving a check at any other point in a series is illegal. In particular, if the only way to escape a check is to give check on the first move of the series, then the game is lost by the player in check by "progressive checkmate".
Progressive chess, like orthodox chess, is notated with algebraic notation. However, the numbering of moves is handled slightly differently. Rather than one White and one Black move being given under each move number (leading to notation in orthodox chess like 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6), each turn by each player is given its own move number (leading to notation in progressive chess like 1.e4 2.e5 Nf6 3.Bc4 Qh5 Qxf7#). In this way, the move number is equal to the number of moves in a series available to a player on that turn.
Read more about this topic: Progressive Chess
Famous quotes containing the word rules:
“This is no argument against teaching manners to the young. On the contrary, it is a fine old tradition that ought to be resurrected from its current mothballs and put to work...In fact, children are much more comfortable when they know the guide rules for handling the social amenities. It’s no more fun for a child to be introduced to a strange adult and have no idea what to say or do than it is for a grownup to go to a formal dinner and have no idea what fork to use.”
—Leontine Young (20th century)
“Syntax and vocabulary are overwhelming constraints—the rules that run us. Language is using us to talk—we think we’re using the language, but language is doing the thinking, we’re its slavish agents.”
—Harry Mathews (b. 1930)
“I invented the colors of the vowels!—A black, E white, I red, O blue, U green—I made rules for the form and movement of each consonant, and, and with instinctive rhythms, I flattered myself that I had created a poetic language accessible, some day, to all the senses.”
—Arthur Rimbaud (1854–1891)