Plus 4 Mastermind

Plus 4 Mastermind is a kind of Mastermind game by playing with number instead of colors. Plus 4 is a classic mind game, puzzle game.

The aim of Plus 4 Mastermind is to guess the number (4 digits) which game engine generates at the beginning of the game, with at most 12 guesses. After each guess game engine returns result in term of plus and minus (+/-).

+4 means, you has found the secret code / number.

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For example, if we assume that game engine generated number "4087" and your guess is "4510". In this situation game engine will return "+1 -1".

+1 is for "4" because it is in "correct place" in target number.

-1 is for "0" because it is exist in target number but it is in "in-correct place".
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Plus 4 Mastermind has 3 different game modes;

RETRO MODE: Classic guess mode with number with 4-digits

TIMER MODE: Same structure as RETRO MODE but each turn you have limited time, 12 seconds

PLUS 3 MODE: Classic guess mode with number with 3-digits

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Plus 4 Mastermind is also integrated with Google Play Services - Leaderboards and Achievements. So you can challenge with your friends in game. For each game mode there are separated Leaderboard.
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Game Hints

☆Hint 1: 0 cannot be placed in 1st digit so it means target number cannot start with 0 during play. This can be used for a strategy and you can use 0 in initial guesses to reach number because you can guess 0 in 3 places instead of 4.

☆Hint 2: +0 -0 result even seems bad, actually it is one of the most supportive result while reaching the secret code in game. Because it means that none of the number exist in secret code, so you can eliminate these numbers easily.

☆Hint 3: History of your previous guesses are key to reach secret code in game. Normally, (-) only results can be counted as negative results but actually it means none of numbers are in correct place.

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During your game experience you can choice your gaming style. Try to find secret code in less turn or short time with fast play. If you can reach both, you are an Expert
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Wish Luck, Be Smart