Fix Emergo. Add Avalam 1 & 2
[vchess.git] / client / src / translations / rules / Emergo / en.pug
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d2af3400 1p.boxed
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2 | Similar to Checkers, with prisoners stacked below capturers.
3
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4figure.diagram-container
5 img.img-center(src="/variants/Emergo/match_2004_U-con.jpg")
6 figcaption.text-center.
7 Game played on an orthogonal depiction of a standard 9x9 Emergo board.
8
9p
10 | Nothing disappears in this game: captured pieces become part of the
11 | capturing unit. Therefore, a piece or unit will always be understood
12 | as a combination of W white (elementary) pieces and B (elementary) black
13 | ones, with
14 br
15 | W >= 0, B >= 0 and W + B >= 1.
16
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17p
18 | The 9x9 board is initially empty.
19 | Each player receives 12 stackable pieces, "in hand".
b27300c2 20 | At each turn, a player must pick an action among the followings:
d982fffc 21 ul
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22 li Enter a new piece (W + B = 1) on the board.
23 li Move a unit along diagonals, by one square.
24 li Capture something.
25
26h3 Entering moves
27
28p.
29 Introducing a piece such that the opponent can take it on next turn is
30 forbidden, unless another capture is already available.
31
32p At first move, white cannot place a piece at the central point.
33
34p.
35 If the opponent already placed all his pieces in hand, then a
36 "shadow piece" enters, formed by all the remaining units available
37 (thus in this case W + B > 1).
38
39h3 Captures
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40
41p.
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42 Captures work exactly as in Checkers: by jumping over a diagonally adjacent
43 piece to land on a free square just behind.
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44 If a capture is possible, then it must be played; in this case no piece can
45 be introduced on the board.
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46 If after a capture another is possible with the same piece, it must also be
47 played — except if that implies turning at 180 degrees.
d982fffc 48
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49figure.diagram-container
50 .diagram.diag12
51 | fen:9/9/2a@1a@4/9/4a@4/3D@5/9/5A@3/6b@2 e3:
52 .diagram.diag22
53 | fen:9/9/2a@1a@4/9/4a@4/3D@5/4ba4/9/9:
54 figcaption.
55 Before and after black captures, jumping at the marked location.
56 The next white piece must be captured too.
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57
58p.
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59 Captures can be described formally as follows.
60 If, as white, W1/B1 jumps over W2/B2 at square S2 to land on S1', then
61 W1/(B1+1) arrives on S1' while W2/(B2-1) stays on S2.
d982fffc 62 If W2 = B2 - 1 = 0, nothing remains at the captured unit location.
b27300c2 63 As black: exchange W and B.
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64
65p.
66 In other words, each unit is a stack of friendly and enemy pieces, with
67 friendly pieces on top. After each capture, the prisoners part of the
b27300c2 68 stack is incremented, while the jailers quantity at the captured
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69 location decreases by one.
70
71p.
72 When several capturing chains are available,
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73 the player must select one of the longest (as in Checkers):
74
75figure.diagram-container
76 .diagram
77 | fen:9/9/2a@1a@4/9/2bb1a@4/3C@5/9/9/9:
78 figcaption.
79 From https://www.mindsports.nl/:
80 White's only option is to capture clockwise.
d982fffc 81
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82p.
83 A piece can be jumped over several times, as long as it contains
84 at least one enemy unit (controling it).
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85
86h3 More information
87
88p
b27300c2 89 | You are invited to visit the
d982fffc 90 a(href="https://www.mindsports.nl/index.php/arena/emergo/88-rules")
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91 | authors' website
92 | . The rules are also described on
d982fffc 93 a(href="http://www.iggamecenter.com/info/en/emergo.html") iggamecenter
b27300c2 94 | , where you can play Emergo.
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95
96p Inventors: Christian Freeling and Ed van Zon (1986)