Jewel Cache is an easy-to-learn logic game for your mobile phone. Based on the classical code-breaking game of Bulls and Cows, this is a perfect game to play anytime and any place.

The phone will randomly generate a unique combination of exactly 4 jewels out of the given set of jewels in a difficulty level. Each jewel can appear at most once in any combination. You have to deduce the combination of jewels (i.e. correct colour and correct slot) in the given number of turns. The three difficulty levels are as follows:

• Level 1: Easy - (Total 6 different jewels and maximum of 6 turns)
• Level 2: Medium - (Total 7 different jewels and maximum of 7 turns)
• Level 3: Difficult - (Total 8 different jewels and maximum of 8 turns)

Controls

• Press ''Start'' to begin the game. Use the left and right navigation keys to move the cursor to a slot on the current  row
• On any slot, use the top and bottom navigational keys to scroll through (place) the jewels
• After placing all 4 jewels on the row, press ''Check'' to submit your code and see the score for that turn
• Note: In case a given slot in the row is empty, or if any jewel appears more than once in the row, an "Invalid!!!" message is displayed.
• A code submission must not contain any empty slots or have any jewel appearing more than once
• Press ''Pause'' and ''Start'' to pause / resume the game at any stage respectively
• Press the key beneath ''Answer'' to view the solution for the code

Score

• Each black coin in the score denotes "One jewel of correct colour and in the correct slot"
• Each white coin denotes "One jewel of correct colour but incorrect slot"