Add Swap, Switching, pawns variants
[vchess.git] / client / src / translations / rules / Orda / en.pug
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1p.boxed
2 | The player in second has a different set of pieces,
3 | moving roughly like "augmented knights".
4
964eda04 5img.img-center(src="/variants/Orda/Orda.png")
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6
7p
0b908bd4 8 | Orda Chess is a chess variant designed in 2020 by Couch Tomato.
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9 span.italic
10 | Note: he'd rather remain anonymous :)
171d6b79 11 | Anyway this text and all the images are from him.
c7550017 12 | The idea of the game was to create a true asymmetric chess with
8fdc37cd 13 | two different armies. Ralph Betza's
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14 a(href="https://www.chessvariants.com/unequal.dir/cwda.html")
15 | Chess with Different Armies
0b908bd4 16 |  was an inspiration, but the goal was to be a little more streamlined
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17 | with the theme here.
18 | In this case, the theme of the new army is knight-based movement,
19 | where most pieces have an element of knight movement.
20 | Given the knight (or horse) theme, this was modeled after the
21 | Mongol army and named the Horde. An "orda" was a military structure
22 | for the people of the Steppes, which also gave rise to the English word
23 | "horde." The original chess army is named the Kingdom for contrast.
24 | The game itself is incredibly balanced by engine evaluation (even more
25 | than standard chess), with a near 50-50 win ratio for
26 | the Kingdom and Horde.
27
28h3 General Rules
29
30ol
31 li.
32 Setup is as above. Despite new pieces, the placement of the Horde pieces
33 mirror their chess counterparts.
34 li The Kingdom always moves first.
35 li The Horde cannot castle.
36 li.
37 As Horde pawns start on the third rank, they do not have the option to
38 move two spaces or be captured by en passant. Kingdom pawns retain the
39 ability to move two spaces initially and to be captured via en passant.
40 li Pawns can only promote to a queen or kheshig.
41 li.
42 An additional method of victory is available: called campmate. Campmate is
43 achieved by moving one's king into the final rank without being check.
44 li Other rules, including stalemate and repetition are as in chess.
45
46h3 Horde Pieces
47
48p.
49 There are four new units unique* to the Horde: 2 Lancers, 2 Horse Archers,
50 2 Kheshigs, and 1 Yurt (* exception being that the Kingdom can still obtain
51 a Kheshig by promotion). The Kheshigs are the strongest piece
52 (knight + king movement) and lead each flank, while the Yurt is a fairly
53 weak piece unlike the Queen. The Horde's king is called the Khan and looks
54 different, but is essentially the same as the Kingdom's King, also using
55 the same abbreviation (K) — the change is purely aesthetic and
56 thematic.
57
58p.
59 The Horde Lancer and Horse Archer are unique in that they capture
60 differently than movement. Remember that the Horde is horse-based, so the
61 Lancer and Horse Archer both move like knights. They capture like rooks
62 and bishops, respectively. The Kheshig is more traditional in that it
63 captures where it moves; it combines the movements of the knight and king.
64 Similarly, the Yurt also captures the same way it moves; it moves as the
65 silver general in Shogi.
66
cd49e617 67table.rules
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68 tr
69 th Horde piece
70 th Kingdom "counterpart"
71 th Movement
72 th Capture
73 tr
74 td Yurt
75 td Queen
76 td "Silver"
77 td "Silver"
78 tr
79 td Horse Archer
80 td Bishop
81 td Knight
82 td Bishop
83 tr
84 td Kheshig
85 td Knight
86 td Knight+King
87 td Knight+King
88 tr
89 td Lancer
90 td Rook
91 td Knight
92 td Rook
93
94p.
95 Details and diagrams of each piece are below. Green dots represent movement,
96 red dots represent capture, and yellow represents both.
97
98h4 Yurt (Y)
99
964eda04 100img.img-center(src="/variants/Orda/Yurt.png")
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101
102p.
103 The Yurt moves and captures one space diagonally or one space forward.
104 This is the same as a silver general from Shogi or the bishop/khon
105 from Makruk. There is only one yurt, starting in the queen's spot,
106 but unlike the queen, it is very much a minor piece, the weakest piece
107 in the game aside from a pawn. It should not be underestimated though,
108 because it is one of the few Horde pieces that can move and capture
109 the same way. The other two are the Khan and Kheshig, which are the two
110 most valuable pieces. Therefore the yurt has the unique role of reliably
111 supporting pawns and other pieces without fear of retaliation.
112
113p.
114 A yurt is a mobile home for Mongol and Turkic people in the steppes of
115 Asia. Their limited mobility but importance for supporting the army is
116 reflected in this piece.
117
118h4 Kheshig (H)
119
964eda04 120img.img-center(src="/variants/Orda/Kheshig.png")
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121
122p.
123 The Kheshig is a hybrid piece that moves and captures as a knight and
124 king combined. This piece type is also generically called the centaur.
125 The kheshig starts in the knight's spot, but unlike the knight,
126 is the strongest Horde piece. It can be thought of the general that leads
127 its own troop on each flank. It is generally preferred to keep the kheshigs
128 safely behind during early to mid game because of their extreme importance
129 to the Horde in the endgame.
130
131p.
132 The kheshigs were the elite imperial guard for the Mongol royalty.
133 Appropriately, it is incredibly difficult for the Kingdom to checkmate
134 the khan without at least eliminating one of his kheshigs first.
135
136h4 Horse Archer (A)
137
964eda04 138img.img-center(src="/variants/Orda/Archer.png")
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139
140p.
141 The Horse Archer, or simply abbreviated Archer, is a unique "pseudohybrid"
142 piece that moves and attacks differently. The archer moves as a knight but
143 captures as a bishop. Because the archer is not colorbound,
144 its value is greater than its bishop counterpart.
145
146p.
147 Horse Archers were one of the two core components of the Mongol cavalry,
148 functioning as the light cavalry. Their speed and prowess as mounted
149 archers made them a unique threat. Their ability to quickly position
150 themselves for a deadly skewer or fork make them a dangerous threat
151 for the Kingdom.
152
153h4 Lancer (L)
154
964eda04 155img.img-center(src="/variants/Orda/Lancer.png")
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156
157p.
158 The Lancer is a unique "pseudohybrid" piece that moves and attacks
159 differently. The lancer moves as a knight but captures as a rook.
160 Because the lancer is not as mobile as the rook, it is generally
161 weaker than the rook, and this becomes more pronounced in the endgame,
162 as it cannot move across the board as quickly as a rook can.
163 Its value is still comparable to the horse archer.
164
165p.
166 Lancers were one of the two core components of the Mongol cavalry,
167 functioning as the heavy cavalry. Despite being weaker than the rook,
168 their ability to come into play much earlier in the game is an advantage
169 that the Horde player should utilize.
170
171h4 Piece valuation
172
173p.
174 Accurate piece values are unknown. However, these are the values used by
175 Fairy Stockfish, noting that they are generic values,
176 not necessarily specific to Orda chess.
177
cd49e617 178table.rules
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179 tr
180 th Kingdom piece
181 th Value (Early / Late)
182 th Horde piece
183 th Value (Early / Late)
184 tr
185 td Pawn
186 td 120 / 213
187 td Pawn
188 td 120 / 213
189 tr
190 td Queen
191 td 2538 / 2682
192 td Yurt
193 td 630 / 630
194 tr
195 td Bishop
196 td 825 / 915
197 td Horse Archer
198 td 1100 / 1200
199 tr
200 td Knight
201 td 781 / 854
202 td Kheshig
203 td 1600 / 1700
204 tr
205 td Rook
206 td 1276 / 1380
207 td Lancer
208 td 1050 / 1250
209
210p
211 | For those who want a more simplified approach, this table may be
171d6b79 212 | an approximation.
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213 span.italic Note: this simplification is used by the weak bot here.
214
cd49e617 215table.rules
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216 tr
217 th Kingdom piece
218 th Value
219 th Horde piece
220 th Value
221 tr
222 td Pawn
223 td 1
224 td Pawn
225 td 1
226 tr
227 td Queen
228 td 9
229 td Yurt
230 td 2
231 tr
232 td Bishop
233 td 3
234 td Horse Archer
235 td 4
236 tr
237 td Knight
238 td 3
239 td Kheshig
240 td 7
241 tr
242 td Rook
243 td 5
244 td Lancer
245 td 4
246
247p.
248 As a whole, the Horde army is weaker than the Kingdom in value
249 (based on Stockfish valuation).
250 However, the Horde also starts with pawns in the third rank,
251 which balances the game.
252
253h3 Strategy
254
255p.
256 The game is still young, so strategy is still being developed!
257 Much of the data is currently based on Engine play.
258 The Horde cannot castle. However, a very fundamental component of a
79e05a1a 259 majority Horde openings is to move the Khan to g7.
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260 Reaching this spot in within the first four moves is ideal
261 — in fact, Fairy Stockfish opened up with Kf7 in 56% of its games.
262 The rest is variable.
263 For the Kingdom, d4, g3 and b3 are the most common openings in that order.