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Forum Index : Microcontroller and PC projects : MMbg PC3 - a complete backgammon program in MMBasic

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homa

Guru

Joined: 05/11/2021
Location: Germany
Posts: 712
Posted: 09:28pm 19 Oct 2026
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https://youtu.be/x2N5_EjmmYE

Hello to all PC3 owners!

I'd like to introduce MMbg PC3 - a complete backgammon program for the Pico Computer 3.

Features
- match play 1 to 15 points with doubling cube and Crawford rule
- uses the neural nets of GNU Backgammon: the "big" engine plays at about gnubg "Expert" level (0-ply) and wins ~47 % of 5-point matches against gnubg "World class" (2-ply), measured over 1236 matches
- written completely in MMBasic - no CSUB needed
- HDMI graphics (MODE 3) with smooth animation, plus an ASCII board on the serial terminal
- keyboard or USB mouse, multi-level undo, auto save and resume
- .mat export and GNUbg IDs for analysis in gnubg, optional sound
- for tinkerers: gnubg on a PC as opponent over WLAN, overnight test runs

Requirements
PC3 with firmware PicoMitePC3 V7.00.00 RC2 or later.

Installation
Unzip the ZIP onto the SD card, then:
CHDIR "B:/mmbg"
LOAD "mmbg_pc3.bas", C
RUN

The manual (English and German PDF) is included.

The version for the PicoCalc (PiCa) will follow ...

Have fun playing and testing! Please report all bugs here.

Matthias

MMbg_PC3.zip
 
Volhout

Guru

Joined: 05/03/2018
Location: Netherlands
Posts: 6183
Posted: 05:07am 20 Oct 2026
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Wauw

Cant wait to Try it out.

Volhout
Edited 2026-10-20 15:07 by Volhout
PicomiteVGA PETSCII ROBOTS
 
PilotPirx

Senior Member

Joined: 03/11/2020
Location: Germany
Posts: 151
Posted: 07:20am 20 Oct 2026
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That's great,
I'm looking forward to the PicoCalc version.
Does it also require MMbasic V7?
If so, I'll have to update.
 
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