第一部分：紙牌遊戲出千 · CARD MARKING METHODS

One-Way Decks

牌面記認已報道技術水平：Intermediate

運作方式

A one-way deck has backs that are not the same when a card is turned end for end. A picture, a border, or a logo that does not mirror gives the orientation away. Someone who turns chosen cards one way, and the rest the other way, can tell those cards from the back without adding a mark. This is not edge sorting, which uses a small printing difference already on a symmetrical design, and it is not a mark added with ink or a blade.

出現位置

Poker, blackjack, baccarat, and any game in which card backs stay in view

有案可查

Regulators treat a reversible back as a card-security requirement, not as a curiosity. The June 2022 Saskatchewan standard is a regulator’s own rule. This entry does not rest on a named criminal case.

識別與防範建議

付費部分

監控室如何識破one-way decks，以及如何防止其再次發生——為監控台而寫，而非為讀者而寫。

識別與防範為付費層。購買可下載版後即可開通全部400種手法，任何付費方案亦可。

每個訂閱級別均完全使用Cheats & Scams Library，Professional起：全部400種手法的識別與防範指引，另附可搜尋的下載版。

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本內容作為偵測參考，供監控、合規及博彩營運專業人員使用。門檻及設定由各娛樂場自行釐定。本文並非教學指引：記述手法僅為便於識別。