A clock chess liqukethe amawashi amabili exhunyiwe okungakwazi ukugijima ngesikhathi esifanayo. Sebenzisa it njengoba iwashi game ukukala isikhathi esetshenziswa abadlali ababili for uhamba yabo isib in game of chess. Ukuzinika one clock uzoqala omunye. Inhloso ukugcina ithrekhi of the time inani umdlali ngamunye uthatha for uhamba zakhe, futhi ukuqinisekisa ukuthi neither Umdlali ngokweqile kubambezela game.