| 1 | p.boxed |
| 2 | | One of the pawns of each side is a disguised queen. |
| 3 | | She is revealed only when not moving like a pawn. |
| 4 | |
| 5 | p. |
| 6 | The hidden queen cannot give check (because the opponent cannot see her |
| 7 | nature), but she could sometimes capture the king. This capture ends the |
| 8 | game. Except that, everything goes as in orthodox chess. |
| 9 | |
| 10 | figure.diagram-container |
| 11 | .diagram |
| 12 | | fen:rnbqkbnr/ppp1tppp/8/3P4/8/8/TPPP1PPP/RNBQKBNR: |
| 13 | figcaption After 1.e4 d5 2.exd5 |
| 14 | |
| 15 | p. |
| 16 | In the diagram position, if the black hidden queen is on e7 then |
| 17 | they can play 2...Qxe1, revealing her identity and winning at the same time. |
| 18 | |
| 19 | h3 Source |
| 20 | |
| 21 | p |
| 22 | a(href="https://dames-cachees.herokuapp.com/rules") This website |
| 23 | | developed by Etienne Orieux (2019) |
| 24 | | introduces the rules and allow to play in live, |
| 25 | | with a deterministic initial position but a user-defined |
| 26 | | location of the hiden queen. |