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Backgammon NJ

Backgammon NJ
  • #: 1977
  • Price: $4.99 In Apple Store
  • Category: Games
  • Updated: 2016-10-05
  • Current Version: 6.0.2
  • 6.0.2
  • Size: 10.20 MB
  • Language: English
  • Seller: Jimmy Hu
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2009 NJ
  •  Add to Favorite apps

 

Description

● GAME CENTER Play online, chat, invite friends, auto-match with random players

{ Real-time } Play online in real-time

{ Turn-based } Play online at your own pace

● VERSATILE Play offline vs. computer or against another person in 2-player mode

● CUSTOMIZABLE More options than any other backgammon app

Play & learn backgammon at skill levels ranging from beginner to world-class!

Backgammon NJ is a full-featured game which uses an advanced, neural network-based, artificial intelligence. Play against a computer AI, another person in 2-player mode on one device, or online against friends & other players. Using Tutor Mode & Hints, Backgammon NJ can show you how to improve your game!

Discriminating players will appreciate how well the AI plays. It uses a neural network trained on millions of positions, a bearoff database, & a match equity table to achieve strong gameplay that will challenge even expert players.

REVIEWS

"[I] know strong bg play when I see it. This app is the strongest iPhone bg app I've played with by far. It does not cheat period. ...Analyzing these matches with eXtreme Gammon confirms a world class level of play with normal luck factors. If you are losing, get over it. So would 99.9% of the other backgammon players in the world. It is just that good. Learn from it." -Richard Munitz, Giant of Backgammon, #21 world ranking in 2009

"Backgammon NJ plays at an extremely high level with an excellent interface, and I often use it to practice on my iPhone when I am traveling. I recommend it highly to my students and friends." -Phil Simborg, Professional Backgammon Teacher and Player, www.mindgamescenter.com

"I've played over 500 games now; I've checked about 5% of these against World Class Desktop programs (GNU, BGBlitz); and I've actually used some of the competition. NJ has the best interface and has more useful functions than any other backgammon apps out there."

"For serious backgammon players, Backgammon NJ is the way to go." -Macworld.com, May 2012

IS THIS GAME RIGHT FOR YOU?

This game is best for people:

• Who recognize the strength of neural network backgammon bots

• Who want to improve their game by playing against a world-class level AI

• Who will use the in-depth, technical features included in the app to prove that it is honest (http://www.njsoftware.com/note.html)

• Who won't expect to win consistently on the higher skill levels

FEATURES

• Neural network-based AI

• 2 game types: Standard Backgammon or Nackgammon

• 4 skill levels: Easy, Medium, Hard, Expert

• Customizable board design & checker colors

• Mersenne Twister algorithm for random number generation

• Doubling cube

• Single games or match play up to 25 points

• Crawford rule for match play

• 1-player mode vs. computer

• 2-player mode on one device

• Game Center: Play real-time or turn-based online matches with friends & other players

• Chat with your online opponent

• Online Elo & Experience leaderboards

• Block list for auto-match

• User-friendly, tap-to-move interface

• Highlighted checker movement options

• Hint & Undo

• Learn with Status Meter & Tutor Mode

• Game & dice stats, including Elo rating & ER

• Match info: GnuBG ID, win chances, equity, top 10 moves, & cube decisions

• Email match files

• Practice mode with unlimited undo (1-player vs. computer)

• Manual match recording mode with unlimited undo & speed mode option

• Options to reverse board direction, resign, use one-tap moves, auto bearoff, auto finish, use Jacoby rule, & much more

• Match analysis (in-app purchase): Analyze past match files, view moves & errors for match, step through match, jump to position, play from position, save match files permanently

IMPORTANT

• If an online match ends for any reason, you'll receive the Elo pts you deserve. FAQ: http://gamecenter.njsoftware.com

• Online match disconnect info: http://bit.ly/1vpw553

• We can't respond to reviews. Contact us directly: http://contact.njsoftware.com

What's New in Version 6.0.2

v6.0:
- Added "Random" and "Alternating" options to Checker Movement setting. These options will take effect each time you start a new match.
- Option to display point numbers
- Game Center: In iOS 10, invite friends to play through Contacts. More info: http://gamecenter.njsoftware.com
- Bug fix for "Play Position with Same Rolls" option in analysis mode
- Bug fix for crash when sending match files on iOS 10

v6.0.2:
- Bug fix for checker movement direction in turn-based matches

Video Reviews

No video review.

Customer reviews

Write a Review

Rated 5/5 based on 3 customer reviews.

 

5/5 stars

Strong Neural Net Program

:
This is a very strong game, on a par with Jellyfish, Snowie, and GNU. Those who claim cheating by the program may be unfamiliar with neural net artificial intelligence or probability. The program is selecting the best move to increase the probability of a win. The pieces are placed to take advantage of rolls. It counts and calculates a lot faster than we do.

5/5 stars

Backgammon NJ Tops

:
I've been playing for decades, an expert wanna-be. This app plays very well, and helps me learn, too. Well done!

5/5 stars

Very strong AI

:
Using the hint button and trying to understand WHY the moves are better has tremendously improved my backgammon skill. When the AI is this strong, you can trust that the hints it gives you are good.

The people who complain about the dice rolls don't seem to realize that there is a lot of skill involved in backgammon and/or think they're better than they really are. How LONG you've been playing backgammon doesn't matter -- it's HOW you play that's important. I've been riding bikes since I was a kid but that doesn't make me a professional cyclist or extreme games BMX biker...

As of now, my dice stats (under the statistics menu) shows that I've had 11211 rolls, and all of them are very close to the expected value. Learn to use the doubling cube according to what the equity bar in the upper-left corner says. Here's a hint: if the computer doubles you, it's because it's winning!

This app plays at world class levels and the default difficulty is set to the highest level, therefore YOU SHOULD LOSE MORE THAN YOU WIN. If you want to win more, turn down the difficulty level and tap the hint button when it lights up.

This app is WELL worth the money if you take the time to learn from it rather than complaining about it after you lose your first few games against it.

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