Dab tsi yog qhov yuav tsum tau rau iav marbles siv hauv checkers
iav marbles rau checkers yuav tsum tau ua raws li cov kev cai hauv qab no: 1. Txoj kab uas hla zoo ib yam: Cov kab uas hla ntawm iav marbles yuav tsum tau ua kom zoo ib yam los xyuas kom meej tias yuav tsis muaj qhov sib txawv thaum txav mus rau ntawm cov checkers board thiab tswj kom muaj kev sib tw. 2. Smooth nto: Qhov saum npoo ntawm iav marble yuav tsum tau du kom ntseeg tau tias zawv zawg du ntawm cov checkers board. 3. Hardness: iav marbles yuav tsum tsis txhob nyuaj dhau los yog mos heev. Lub hardness nruab nrab tuaj yeem ua kom ntseeg tau tias cov marbles tsis yooj yim tawg thaum lawv poob rau hauv av. 4. Tsis yooj yim rau kev tawg: Cov iav marbles yuav tsum tsis txhob tawg kom ntseeg tau tias lawv tsis yooj yim tawg thiab cuam tshuam cov nyhuv ntawm qhov kev ua si thaum lub sijhawm ua si. 5. Cov xim yuav tsum meej thiab ci: Cov xim ntawm cov iav marbles yuav tsum tau meej thiab ci, uas yooj yim rau kev txheeb xyuas thiab ua rau qhov kev ua si nthuav.