<prompt> Kete tatu zenye nyuso zilizo na nambari 1 hadi 6 zimepangwa kwa rafu kama inavyoonyeshwa. Nyuso saba kati ya kumi na nane zinaonekana, na kuacha nyuso kumi na moja zimefichwa nyuma, chini, kati. Je, ni idadi gani ya nukta ambazo hazionekani katika mwonekano huu? asy AMC8 2000 8 Tatizo chora0,0--1,0--1.5,0.66--1.5,3.66--.5,3.66--0,3--mzunguko;chora1.5,3.66--1,3--1,0;chora0,3--1,3;chora0,1--1,1--1.5,1.66;chora0,2--1,2--1.5,2.66;jazamduara.75, 3.35, .08;jazamduara.25, 2.75, .08;jazamduara.75, 2.25, .08;jazamduara.25, 1.75, .08;jazamduara.75, 1.75, .08;jazamduara.25, 1.25, .08;jazamduara.75, 1.25, .08;jazamduara.25, 0.75, .08;jazamduara.75, 0.75, .08;jazamduara.25, 0.25, .08;jazamduara.75, 0.25, .08;jazamduara.5, .5, .08; Upande wa kulia jazamduara1.15, 2.5, .08;jazamduara1.25, 2.8, .08;jazamduara1.35, 3.1, .08;jazamduara1.12, 1.45, .08;jazamduara1.26, 1.65, .08;jazamduara1.40, 1.85, .08;jazamduara1.12, 1.85, .08;jazamduara1.26, 2.05, .08;jazamduara1.40, 2.25, .08;jazamduara1.26, .8, .08;asy  <response>: Nambari za kifo kimoja ni 12345621, kwa hivyo nambari kwenye kete tatu jumla ni 63. Nambari 1, 1, 2, 3, 4, 5, 6 zinaonekana, na hizi. jumla 22. Hii inaacha 63-2241 haijaonekana. 