Ma'anar ƙamus na "chessboard" wani allo mai murabba'i ne da aka yi masa alama tare da grid na murabba'i guda takwas a cikin mabanbantan launuka, da ake amfani da su wajen buga wasan dara. Hukumar ta kunshi murabba'ai 64, tare da kowane dan wasa fara da guda 16 daban-daban da launuka daban daban da kuma launuka daban-daban a gaban bangarorin.