Abstract: Methods of disclosing a target pattern for identification. The methods are based on the principle of sequentially and non-lexicographically revealing, constructing and/or resolving a target pattern to players to permit the players to identify the target pattern. One such method includes the steps of masking the target pattern to make it imperceptible to the player, repetitively unmasking portions of the target pattern according predetermined unmasking steps, and continuing to unmask the target pattern until a completion criterion is met. Target patterns may consist of still images, audio segments, or motion video sequences depicting items and environments known to the players in their unmasked formats.

Abstract: Methods of disclosing a target pattern for identification. The methods are based on the principle of sequentially and non-lexicographically revealing, constructing and/or resolving a target pattern to players to permit the players to identify the target pattern. One such method includes the steps of masking the target pattern to make it imperceptible to the player, repetitively unmasking portions of the target pattern according predetermined unmasking steps, and continuing to unmask the target pattern until a completion criterion is met. Target patterns may consist of still images, audio segments, or motion video sequences depicting items and environments known to the players in their unmasked formats.