| 1 | p.boxed |
| 2 | | Two new pieces: marshall and cardinal. Bigger board. |
| 3 | | Orthodox rules with a few adaptations. |
| 4 | |
| 5 | p. |
| 6 | Grand chess is played on a 10x10 board. |
| 7 | Two new pieces appear: the marshall and the cardinal, written respectively |
| 8 | M and C. A marshall has the moving abilities of a knight + a rook, while the |
| 9 | cardinal equals a knight + a bishop. |
| 10 | |
| 11 | figure.diagram-container |
| 12 | .diagram |
| 13 | | fen:10/10/10/10/10/2R2Q4/10/4c5/10/10: |
| 14 | figcaption The black cardinal can take on c5 and f5. |
| 15 | |
| 16 | h3 Special moves |
| 17 | |
| 18 | p. |
| 19 | Castling is possible as in orthodox 8x8 game. The white king move to c1 or |
| 20 | i1 (one square to the left of bottom-right corner) for large (resp. small) |
| 21 | castle. Same for black on the other side. |
| 22 | |
| 23 | p. |
| 24 | Promotion is mandatory for a pawn reaching the last rank. However, they can |
| 25 | only promote into a friendly piece captured (which is back on the board). |
| 26 | If none is available, the promotion on last rank is impossible and the pawn |
| 27 | cannot move (but still gives check). |
| 28 | |
| 29 | p. |
| 30 | Pawn promotion is possible (but not forced) on the two ranks before last, |
| 31 | only in an already captured (friendly) piece. |
| 32 | |
| 33 | p. |
| 34 | Note: I changed the author's starting position, to increase randomness |
| 35 | (and uniformize with other variants). |
| 36 | Thus the castling rule was introduced compared to the rules described |
| 37 | on chessvariants.com. |
| 38 | |
| 39 | h3 Source |
| 40 | |
| 41 | p |
| 42 | | Grand chess page on |
| 43 | a(href="https://www.chessvariants.com/large.dir/freeling.html") |
| 44 | | chessvariants.com |
| 45 | | . |
| 46 | |
| 47 | p Inventor: Christian Freeling (1984) |