Flip the Black Card: Press "Q" or tap/click the "Flip Black Card" button.

Flip the Silver Card: Press "W" or tap/click the "Flip Silver Card" button.

Moving Cards: On Desktop: Click and hold the Silver Card, then move your mouse.

On Mobile/Tablet: Tap and hold the Silver Card, then drag your finger.

Keyboard Controls: Arrow keys can Control the Silver Card movement.

Puzzle info: BitcoinTalk Thread

bc1qf3utr757cp98h0hlg690qtegul0xp47rx06jse