In Changing Challenges you try to get the most possible weight placed on your opponent’s half of the course. The game is played with fourteen game pieces for each person. The game pieces have to move on the board and try to get as far forward on the game board as possible. Your game pieces can knock one of your opponent’s pieces by taking over the square on which your opponent’s piece is located. When you have knocked one of your opponent’s pieces, it’s taken out of the game and placed on one of the orange squares behind your opponent’s pieces. You start by placing knocked pieces on the line that is closest to the centre.
The pieces have names like in chess:
- Pieces with a weight of 1 are called pawns and move like pawns in chess.
- Pieces with a weight of 2 are called bishops and move like bishops in chess.
- Pieces with a weight of 3 are called rooks and move like rooks in chess.
- Pieces with a weight of 4 are called queens and move like queens in chess.
- The piece with a weight of 6 is called the king and moves like a king in chess.
When the game starts:
When the game starts, the game pieces are set up as shown in the picture. The counterweight is placed outside the game board itself on line 0. It is always the player with the triangular game pieces who starts.
You have fourteen game pieces that are marked with a concave triangle with indication of weight.
Your opponent’s game pieces have a concave circle.
How you knock the pieces in Changing Challenges:
A piece can only be knocked in Changing Challenges if through the collision it comes to weigh more than four units. It means, for example, that if a pawn knocks (takes) a pawn, then it becomes a bishop. If a bishop knocks (takes) a pawn, then it becomes a rook. If a pawn knocks (takes) a rook, then it becomes a queen. And if a bishop knocks (takes) a bishop, then it becomes a queen. But if a bishop knocks a rook or a queen , then the knocked piece is removed from the game and placed on the orange squares. No pieces – except the king – may thus weigh more than four weight units. If you knock a pawn with a pawn, you do not have to remove the knocked piece from the game, but you may instead place your pawn on top of the other, and now you get the reward of having your pawn changed to a bishop. Likewise, you can change a bishop to a queen if you knock another bishop.
How you move your game pieces:
The pawns may only take one step at a time – and may only go straight ahead and forward. The first time a pawn is to be moved, however, it can be moved two squares straight ahead. A pawn cannot knock straight ahead but can knock the opponent’s pieces by knocking diagonally. If a pawn reaches the back-most line, then it is changed to a queen.
The bishops may only move diagonally, but just as far as you wish. The bishops can move both forward and backward.
The rooks may only move straight ahead, but just as far as you wish. The rooks can move both forward and backward.
Queens can move both straight ahead and diagonally – and just as far as you wish. The queens can move both forward and backward.
The king can move both straight ahead and diagonally – but only by one step at a time.
None of the pieces can jump over other pieces.
To knock en-passant:
If your opponent moves a pawn two squares forward the first time the pawn is moved, and by doing this he passes a square that you are threatening with one of your pawns, you can choose to knock the pawn as if it were located on the threatened square. But only in the move right after his pawn move.
How you win in Changing Challenges:
- If you have collected so much weight on your opponent’s half of the course that the game support can no longer be brought to a horizontal position, even if the counterweight is in the outermost position.
- If you can place your king on the centre line without your opponent being able to knock it.
- If you can knock your opponent’s king.
- If you are skilled, play with a clock. Then you can also win if your opponent has used his time before you have. In tournaments, the game is played with a total of one hour of consideration time for each player, but you can also play lightning-gravity-chess with ten minutes of consideration time for each player. If you are playing against time, you don’t need to move the counterweight during your consideration time, but you can move it while your opponent is thinking.
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