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Holy Grail

This is a rules file for Zillions of Games, a Windows program that will let you play any puzzle or strategy board game you can feed it the rules to. With Zillions-of-Games installed, this rules file will let you play this game against your computer.


Holy Grail is played like standard chess except for the new pieces, and a few modifications to the pawn initial moves, en-passant and flexible castling.

It is played on a larger 104 Square board, and features the following pieces:

The Battle Templar is a color bound piece that can move one or leap two steps diagonally or leap 2 squares orthogonally. It can capture by replacement only on the square it lands.

The Warmachine Alfil can move one or leap two steps orthogonally or leap 2 squares diagonally. It is the exact inverse of the Battle Templar. It can capture by replacement only on the square it lands. The Ferz-Knight - moves like a knight or make one step diagonally.

The Wazir-Knight - moves like a knight or make one step orthogonally.

The Mutating Serpent is a piece that can transform itself into various piece types: the Flying Bomber, the Raptor, the Cannon, the Vao, the Stealth Gryphon, the Anti-Gryphon, the Ferz Sorcerer and the Wazir Conjurer.
  • It can be dropped in an empty space on the two outer squares only.
  • Dropping it constitute a turn. The piece can only be moved on the next turn.
    Click on empty rear square to drop it. You have to wait for next turn to move it.
  • Transforming into another piece also takes a turn.
  • The mutating serpent must be dropped as one of its mutating forms e.g. Drop it as a Flying Bomber.
  • It can mutate only after making at least one move from its previous mutation. Thus, if dropped as a raptor it can only be transformed into a Flying Bomber the turn after making a move as a Raptor.
    If moved as previous form, clicking on the piece will transform it into another. A box pops up giving a choice of mutations. This transformation counts as a move.
The serpent mutations: (see piece help for more detailed info)

Flying Bomber moves like a rook and captures by flying over enemy. It also makes a special capture by replacement 2 squares away. It can also jump over adjacent friendly piece.
The Raptor is the diagonal version of the Flying Bomber.
The Cannon is the same piece as in Chinese chess.
The Vao is the diagonal equivalent of cannon.
The Stealth Gryphon slides to squares along an unobstructed path of one diagonal square followed by two or more orthogonal squares outwards.
The Stealth Anti-Gryphon - Slides along unobstructed path of one orthogonal square followed by two or more diagonal outwards.
The Ferz Sorcerer jumps an extended leap like a zebra or steps one diagonally.
The Wazir Conjurer jumps an extended leap like a camel or steps one orthogonally.

The Ninja Pawns:
This special pawn can move/capture like a regular pawn as well as move 1 space sideways. When in enemy territory it can also capture 1 space sideways. It can move 1-multiple spaces toward the center and en-passant does not apply. Up to 4 Ninja Pawns can be dropped (1 per turn) to an empty space on the 2nd rank , and you can optionally make the forward thrust in the same move.

Clicking on an empty square in 2nd rank will drop a ninja pawn. The program then waits for you to make the forward thrusting move. If you choose not to make the forward move, CLICK ON the ICON for PASS MOVE or from the menu: Select PLAY and then choose PASS MOVE.

Download instructions

Instructions on downloading this Zillions file:

  • Download the .zip file
  • Extract the contents of the .zip file to your Zillions of Games folder
  • Be sure you have the "Use folder names" checkbox checked when you extract the files.

This 'user submitted' page is a collaboration between the posting user and the Chess Variant Pages. Registered contributors to the Chess Variant Pages have the ability to post their own works, subject to review and editing by the Chess Variant Pages Editorial Staff.

By Charles Daniel.
Web page created: 2008-09-07. Web page last updated: 2008-09-07