projects / vchess.git / blame
| Commit | Line | Data |
|---|---|---|
| 0596f5e7 | 1 | p.boxed. |
| c75838d9 BA |
2 | Every move played ends up on another board (the "other side of the mirror"). |
| 3 | There are two boards. All pieces start on board 1. | |
| a4cf093a | 4 | |
| 0596f5e7 | 5 | p. |
| c75838d9 BA |
6 | Two boards are used in this variant (represented on only one). |
| 7 | Upside-down pieces appear at every "normal" pieces moves: they live on | |
| 8 | another board. When moved, they return to the initial board. | |
| 9 | Orthodox rules apply on each board. | |
| 10 | In addition, the final square should not be occupied by a piece from the | |
| 11 | other board (thus allowing to represent all on one board). | |
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12 | |
| 13 | p Notation for Alice pieces was chosen as follow: | |
| 14 | ul | |
| c75838d9 BA |
15 | li Pawn : S |
| 16 | li Rook : U | |
| 17 | li Knight : O | |
| 18 | li Bishop : C | |
| 19 | li Queen : T | |
| 20 | li King : L | |
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21 | |
| 22 | figure.diagram-container | |
| d7083722 | 23 | .diagram |
| c75838d9 BA |
24 | | fen:rnbqkbnr/ppp1pppp/8/8/2p5/5O2/PP1PPPPP/RNBQKB1R: |
| 25 | figcaption After the moves 1.Nf3 Pd5 2.Pc4 Sxc4 | |
| a4cf093a | 26 | |
| 0596f5e7 | 27 | p. |
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28 | En-passant and castle occur as they do in the standard game. |
| 29 | More specifically, en-passant is possible regardless of the worlds pawns | |
| 30 | are in. This is justified because pawns "go through the mirror" while moving, | |
| 31 | and can thus be captured either right after or just before they pass the | |
| 32 | mirror. | |
| 33 | Castling should be legal according to orthodox rules on the board 1 (it | |
| 34 | cannot occur on board 2, because it would mean king and rook moved). | |
| 35 | Moreover, the king cannot be in check on board 2 after castling. | |
| a4cf093a | 36 | |
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37 | h3 Note |
| 38 | ||
| 39 | p. | |
| 40 | Any move played should be legal on the board it is done, | |
| 41 | and result in a legal situation on the other board. For example | |
| 42 | 1.Pe4 Pd5 2.Be2!? Sxe4?? 3.Cb5# is checkmate because | |
| 43 | 3...Kd7 is not valid on board 1. | |
| 44 | ||
| 0596f5e7 | 45 | h3 End of the game |
| a4cf093a | 46 | |
| 2316f8b8 | 47 | p. |
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48 | As in the orthodox game, win by checkmating the king. |
| 49 | It shouldn't be able to escape the check, not even by moving to the other | |
| 50 | board. | |
| a4cf093a | 51 | |
| e081ffe3 | 52 | h3 More information |
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53 | |
| 54 | p | |
| c75838d9 BA |
55 | | See the Alice chess pages on |
| 56 | a(href="https://www.chessvariants.com/other.dir/alice.html") | |
| 57 | | chessvariants.com | |
| 58 | | and on | |
| 59 | a(href="https://www.schemingmind.com/journalarticle.aspx?article_id=9") | |
| 60 | | schemingmind.com | |
| 61 | | . |