$ cat cards/jang-hyunsoo-499-2018/faq/trading-faq-54.md

How does the swap matcher find matches for the Jang Hyunsoo card?

card: Jang Hyunsoo 499 (2018) · category: trading

[Concise Summary]

The swap matcher compares your trading partner's duplicates against your missing list. If a match contains 499, the tool highlights it in the trades ledger.

[Structured Data Grid]

Match Method	Intersectional Matrix
Match Indicator	Green Highlight for 499
Algorithm Accuracy	100% deterministic
Complexity Class	O(N) search lookup

Detailed Investigation & Analysis

The matching logic runs checklist matrix intersections. It reads partner duplicate strings and filters for codes present in your missing list. If a match matches 499, the swap is highlighted.

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	499
Official Name	Jang Hyunsoo 499 (2018)
Estimated Value	$0.93 USD
Album Section	Korea Republic (2018)
Completion Mode	Required Checklist Item