There are three types of pion; the positive pion (π+), the negative pion (π-), and the neutral pion (π0).

In that case, White could then recapture Black's pawn by using his e3 pawn (the e3 pawn controls the d4 square thus protecting the d4 pawn).

The invention also relates to the rotation-proofing peg used.

The pawn second from the right at the start of the game would be called the KN-pawn (King Knight Pawn).

Your opponent's pawn directly across the board from your own pawn is called the "Counterpawn".

As in to queen a pawn, meaning to promote a pawn to a queen.

For example, at the start of the game, the pawn on the far left side would be called the QR-pawn (Queen Rook Pawn).

With 2…c6, Black supports his d-pawn with the c-pawn instead of the e-pawn.

The pawn shall be replaced by a queen of the same colour as the pawn.

He receives 300 ducats for the sale of spices and 400 ducats for the sale of iron.

Black can capture the white Elephant by moving diagonally forward.

To start the game the player with the highest value piece places a matching numbered piece on one of the centre squares.

Once its counterpawn has been captured, the pawn is then considered "half-free".

The pawn (20) comprises a contact surface (21) for supporting the pawn (20) on the board surface (3), and an image input part (23) cooperating with the board surface (3) to receive the pawn input image (22).

The flat stem base and the pin are in constant contact with a valve trim sleeve (30) which has a flat mating surface with a slot to receive the pin.