Backgammon NJ for Android

Backgammon NJ for Android

Board
3.9
20K+ Downloads
"Play & learn backgammon at skill levels ranging from beginner to world-class!"

About this app

● Versatile -- Play offline vs. computer or against a friend in 2-player mode
● Customizable -- More options than any other backgammon app

Play & learn backgammon at skill levels ranging from beginner to world-class! This app is designed for both Android phones & tablets.

Backgammon NJ for Android is a full-featured game which uses an advanced, neural network-based, artificial intelligence. Play against a computer AI or against another person in 2-player mode on one device. Using Tutor Mode & Hints, Backgammon NJ for Android 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.

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 are willing to use in-depth, technical features included in the game to prove that it is honest (https://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 or Nackgammon
• 4 skill levels: Easy, Medium, Hard, Expert
• Mersenne Twister algorithm for random number generation
• Doubling cube
• Single games or match play up to 25 pts
• Crawford rule for match play
• 1-player mode vs. computer
• 2-player mode on one device
• 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 you're having issues:
• Make sure a task killer isn't killing BGNJ processes.
• Run BGNJ from main memory, not from memory card.
• We can't respond to crash reports submitted through Android OS. Contact us directly: https://contact.njsoftware.com

App Info

Version
4.8
Updated on
Sep 02, 2024
Size
Requires Android
7.1
Installs
20K+
Category
Board

What's New

v4.8:
- Updated for latest Android API level

App Permissions

  • Other
    • view network connections
    • full network access
    • Google Play license check

Ratings and Reviews

3.9
Total ratings
5
4
3
2
1
A
Alan Macdonald
Sep 22, 2026

Fun to play. But you only play against the computer

L
Laura Lambertini
Sep 06, 2026

Great app but... I think the computer rolls more double dice.

W
William Oliver
Aug 28, 2026

fun without the ads

S
Stella
Aug 09, 2026

Excellent App. Have been playing this app for many years. It has never crashed or even wobbled. I have both android and iPhone apps. The game information is a wonderful part of the app, and has helped me improve my game tremendously. Here we are 2 years since my last review. Still an excellent app. I play most days and it never fails in any way. Absolutely love it.

I
Isaac Perry
Aug 05, 2026

Excellent

K
Kevin Sweeney
Aug 03, 2026

great gameplay, needs more teaching