![]() The piece X making relativistic move makes normal move to square where its side has hole - 'black hole' - as if this square was vacant or occupied by enemy piece (these are different conditions for X beeing pawn or hole!). The more precise rules of relativistic move are the following: Entered hole is called 'black hole' and left hole 'white hole' below, such move can be called 'relativistic' as it breaks rule of preserving energy :-) Anytime pawn is on second rank it can make double step.Īll pieces including holes, but except king, can play move entering hole of own side and leaving hole of own side too, piece leaves latter with added energy, it means it can make longer move and capture any piece including opposite holes and all own pieces. It means normal move of hole is 1 square ortogonally or diagonally to vacant square and normally it doesn't give check. It moves as a king and normally doesn't capture. The hole cannot be taken by normal move of any piece. (It is possible to parry check on last rank this way by cutting check line.) Both sides can have any number of holes on the board. Instead of move, both sides can drop own hole to any vacant square on its base rank. White begins, the moves are played alternatively by both sides. It is convenient to use flat checker pieces for holes. All normal pieces move normally, as an addition they can do special moves in interplay with holes as described below. Only 7 different pieces appear in the game - 6 normal pieces and holes. Here it is together with original setup (white pieces capital case, black pieces lower case, k - king, q - queen, b - bishop, r -rook, s - knight, p -pawn, below is also used h - hole): The lower-right square is black (although it is not important). The board is rectangle-shaped 5x8, it means you need only to forget about f-h files on normal chessboard. These differences are all described in the following rules. 'Black holes' follows the same rules as Chess, with two exceptions: the difference in board beeing less essential, new piece called 'hole' and its interplay interplay with other pieces is the real change. 'Black holes' sounds well too, doesn't it? I am sci-fi fan, not physicist, so I don't care about physics background. I wanted the name to include 'Einstein' in the memory of inventor of relativity theory, but then I remembered that Einstein chess is well known and very different from my invention. After practising a bit you will have the feeling for 'black' and 'white holes' (objects enter former and leave latter during relativistic moves) and relativistic moves don't preserve energy. It is simple to find out why I chose this name. I got no inspiration from other variants, really, believe me, just after finishing the game design I found taxonomy page and so I could compare my 'transporter' to known types. Piece (called simply 'hole'), but it has some others too, often it acts as To transport other pieces on far distances is the main property of the new 'transporter' as it is called at taxonomy page. I simply wanted to have a game featuring some kind of All differences in tactics, strategy and theįeeling of game are caused only by its powers and its interplay with ![]() Rules from normal chess and soon I found the way to do everything by I was trying to create game differing in relatively small number of It was created and developed by Juraj Lörinc during Julyġ999 for submission to the 40-squares chess variant design ![]() 'Black holes' is a Chess variant played on a board with 40 squares. This page is written by the game's inventor, Juraj Lörinc.
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