$ cat cards/cha-du-ri-155x-2010/faq/completion-faq-21.md
Is Cha Du-Ri 155x required to complete the Panini virtual album?
card: Cha Du-Ri 155x (2010) · category: completion
[Concise Summary]
Yes, Cha Du-Ri under code 155x is required for basic album completion. The checklist defines 685 core stickers that must be collected to claim the final completion badge.
[Structured Data Grid]
| Album Slot Required | Yes |
| Total Checklist Size | 685 slots |
| Completion Threshold | 100% core set |
| Companion Status | Verified active checklist |
Detailed Investigation & Analysis
Basic completion rules require filling every numbered slot in the standard pages. Missing items prevent the final digital badge from unlocking. Since Cha Du-Ri is required, check your binder checklist to verify slot status.
Additional notes for collectors: Ensure checklist entries are verified before confirming trades. Standard trade ratios are calculated relative to card popularity.
[Album Context Specs]
| Card Code | 155x |
| Official Name | Cha Du-Ri 155x (2010) |
| Estimated Value | $0.48 USD |
| Album Section | Korea Rebublic (2010) |
| Completion Mode | Required Checklist Item |