Tashkent Domino

Tashkent Domino is a pocket size 2 player placement game using dice. There are 9 dice with each face divided by a diagonal line. Either side of the lines are 0 to 3 dots. Players take 4 dice each and roll them once only, placing them according to the top face. The starting player rolls the 9th die and puts it in the center of the 3x3 grid. Players then alternately place one of their dice on the grid, so that adjacent dots match, playing when possible. When no more dice can be placed, whichever has the least wins. If the dice are equal, the least dots win. Play is open, so you plan your moves to block your opponents'.
Easy.

Professional Tashkent Domino is a larger variant played on a 5x5 grid.