Shatar

Shatar (Mongolian: "Monggol sitar-a", "Mongolian shatranj"; a.k.a. shatar) and hiashatar are two chess variants played in Mongolia. 
Game rules.
The rules are similar to standard chess; the differences being that:
Hiashatar.
Hiashatar is a medieval chess variant played in Mongolia that is not as popular as shatar. The game is played on a 10×10 board. The pieces are the same as in shatar with the following exceptions: