Commit | Line | Data |
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1269441e BA |
1 | p.boxed |
2 | | The player in first has a different set of pieces, | |
3 | | moving generally like a queen but capturing (almost) as usual. | |
4 | ||
5 | figure | |
6 | img.img-center(src="/variants/Empire/Board.png") | |
7 | figcaption.text-center Initial deterministic setup. | |
8 | ||
9 | p. | |
10 | Empire Chess is a chess variant designed in 2020 by Couch Tomato, the third | |
11 | asymmetric game. This game pits the army of the "Empire" (gold) against the | |
12 | original chess army (the "Kingdom", black). The Empire's unique feature is | |
13 | that its pieces move like queens but attack differently. | |
14 | ||
15 | h3 General Rules | |
16 | ||
17 | ol | |
18 | li The Empire (gold) always moves first. | |
19 | li The Empire cannot castle. | |
20 | li. | |
21 | As the Empire's pawns start on the third rank, they do not have the | |
22 | option to move two spaces or be captured by en passant. Kingdom pawns | |
23 | retain the ability to move two spaces initially and to be captured via | |
24 | en passant. | |
25 | li Pawns on either side can only promote to a queen. | |
26 | li. | |
27 | An additional method of victory is available: called campmate. | |
28 | Campmate is achieved by moving one's king into the final rank | |
29 | without being check. | |
30 | li Stalemate and repetition are both losses. | |
31 | li. | |
32 | Facing kings — The King and Kaiser (Imperial King) may not face | |
33 | each other on a file or rank, similar to Xiangqi. | |
34 | ||
35 | h3 Imperial Pieces | |
36 | ||
37 | p. | |
38 | There are five new units unique to the Empire: 2 Siege Towers, 2 Eagles, | |
39 | 2 Cardinals, 1 Duke, and 2 Soldiers. The bottom rank are all stronger than | |
40 | their Kingdom counterparts with the exception of the Duke. | |
41 | ||
42 | ul | |
43 | li. | |
44 | Kaiser (K) — The Imperial king is called the Kaiser and has a | |
45 | different symbol, but is essentially the same as the Kingdom's King, | |
46 | also using the same abbreviation (K) — the change is purely | |
47 | aesthetic and thematic. | |
48 | li. | |
49 | Soldier (S) — The Soldiers are the two pawn-like pieces replacing | |
50 | the two middle pawns. These act like promoted soldiers in Xiangqi and | |
51 | can move one square orthogonally in any direction except backwards. | |
52 | ||
53 | p. | |
54 | The remaining pieces are divergent pieces, pieces that move differently | |
55 | than they attack (such as pawns). Imperial pieces all move as queens, | |
56 | but attack like their Kingdom counterpart except for the Duke. | |
57 | ||
58 | ul | |
59 | li. | |
60 | Siege Tower (T) — The Siege Tower, or Tower for short, moves like a | |
61 | Queen but attacks like a Rook. | |
62 | li Eagle (E) — The Eagle moves like a Queen but attacks like a Knight. | |
63 | li. | |
64 | Cardinal (C) — The Cardinal moves like a Queen | |
65 | but attacks like a Bishop. | |
66 | li Duke (D) — The Duke moves like a Queen but attacks like a King. | |
67 | ||
68 | figure | |
69 | img.img-center(src="/variants/Empire/EagleMoves.png") | |
70 | figcaption.text-center Eagle's moves (green) & captures (red). | |
71 | ||
72 | h3 Piece valuation | |
73 | ||
74 | p The following simplified values are used by the bot: | |
75 | ||
76 | table | |
77 | tr | |
78 | th Kingdom piece | |
79 | th Value | |
80 | th Imperial piece | |
81 | th Value | |
82 | tr | |
83 | td Pawn | |
84 | td 1 | |
85 | td Pawn | |
86 | td 1 | |
87 | tr | |
88 | td Queen | |
89 | td 9 | |
90 | td Duke | |
91 | td 4 | |
92 | tr | |
93 | td Bishop | |
94 | td 3 | |
95 | td Cardinal | |
96 | td 4 | |
97 | tr | |
98 | td Knight | |
99 | td 3 | |
100 | td Eagle | |
101 | td 7 | |
102 | tr | |
103 | td Rook | |
104 | td 5 | |
105 | td Siege Tower | |
106 | td 7 | |
107 | tr | |
108 | td Soldier | |
109 | td 2 | |
110 | td - | |
111 | td - | |
112 | ||
113 | h3 More information | |
114 | ||
115 | p | |
116 | | See | |
117 | a(href="https://www.pychess.org/variant/empirechess") Empire Chess | |
118 | | on pychess-variants, where you can also play this variant. |