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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 | |
1d2055d9 | 22 | option to move two spaces or be captured by en passant. |
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23 | li Pawns on either side can only promote to a queen. |
24 | li. | |
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25 | One can win by bringing the king into the final rank without being check. |
26 | This situation is called "campmate". | |
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27 | li Stalemate and repetition are both losses. |
28 | li. | |
5fa88038 | 29 | The King and Kaiser (Imperial King) may not face |
1d2055d9 | 30 | each other on a file or rank. |
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31 | |
32 | h3 Imperial Pieces | |
33 | ||
34 | p. | |
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35 | There are five new units unique to the Empire: Siege Towers, Eagles, |
36 | Cardinals, Duke, and Soldiers. The bottom rank pieces are all stronger than | |
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37 | their Kingdom counterparts with the exception of the Duke. |
38 | ||
39 | ul | |
40 | li. | |
41 | Kaiser (K) — The Imperial king is called the Kaiser and has a | |
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42 | different symbol, but the change is purely aesthetic and thematic: |
43 | it behave like an orthodox king. | |
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44 | li. |
45 | Soldier (S) — The Soldiers are the two pawn-like pieces replacing | |
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46 | the two middle pawns. They can move one square orthogonally forward, |
47 | or lateraly. | |
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48 | |
49 | p. | |
1d2055d9 | 50 | The remaining pieces are "divergent" pieces: they move differently |
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51 | than they attack (such as pawns). Imperial pieces all move as queens, |
52 | but attack like their Kingdom counterpart except for the Duke. | |
53 | ||
54 | ul | |
55 | li. | |
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56 | Siege Tower (T) — The Siege Tower, or Tower for short, |
57 | attacks like a Rook. | |
58 | li Eagle (E) — The Eagle attacks like a Knight. | |
59 | li Cardinal (C) — The Cardinal attacks like a Bishop. | |
60 | li Duke (D) — The Duke attacks like a King. | |
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61 | |
62 | figure | |
63 | img.img-center(src="/variants/Empire/EagleMoves.png") | |
64 | figcaption.text-center Eagle's moves (green) & captures (red). | |
65 | ||
1d2055d9 | 66 | h3 Pieces valuation |
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67 | |
68 | p The following simplified values are used by the bot: | |
69 | ||
70 | table | |
71 | tr | |
72 | th Kingdom piece | |
73 | th Value | |
74 | th Imperial piece | |
75 | th Value | |
76 | tr | |
77 | td Pawn | |
78 | td 1 | |
79 | td Pawn | |
80 | td 1 | |
81 | tr | |
82 | td Queen | |
83 | td 9 | |
84 | td Duke | |
85 | td 4 | |
86 | tr | |
87 | td Bishop | |
88 | td 3 | |
89 | td Cardinal | |
90 | td 4 | |
91 | tr | |
92 | td Knight | |
93 | td 3 | |
94 | td Eagle | |
95 | td 7 | |
96 | tr | |
97 | td Rook | |
98 | td 5 | |
99 | td Siege Tower | |
100 | td 7 | |
101 | tr | |
102 | td Soldier | |
103 | td 2 | |
104 | td - | |
105 | td - | |
106 | ||
ea3b71d9 | 107 | //h3 More information |
1269441e | 108 | |
ea3b71d9 | 109 | //p |
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110 | | See |
111 | a(href="https://www.pychess.org/variant/empirechess") Empire Chess | |
112 | | on pychess-variants, where you can also play this variant. |