This was further strengthened by the presence of the large print numbers alongside the open squares which helped participants identify the appropriate box for their numbers.
Roedd presenoldeb y rhifau print mawr ochr yn ochr â’r sgwariau agored yn atgyfnerthu hynny, ac wedi helpu’r cyfranogwyr i ddod o hyd i’r blwch priodol ar gyfer eu rhifau.