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About RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) Electronic Travel Chess Computer

ABOUT RADIOSHACK 2-IN-1 CHESS & CHECKERS MODEL 60-2725 ELECTRONIC TRAVEL CHESS

 

 

Ron Nelson reported that in 1999 he spent 9 months in developing a new 4 Bit chess program which became the foundation for many future Excalibur models as well as its continued use by Excalibur's successor EB Electronics. The first 4 Bit Model 375 Excalibur LCD Chess was launched in the year 2000. This program can also be found inside many chess computer models sold by other companies such as Radio Shack.

This 4 Bit program seems to be per Nelson's comments an even further slimmed down version of the original Nelson H8 program, compressed into this much smaller hardware and trimmed with many of the features of the original stronger H8 program removed in order to squeeze a workable chess program into the lesser ram space available on the 4 Bit hardware. This included removal of many of the more sophisticated chess routines used in stronger chess programs such as Nelson's Attack Bit Map Tables, much smaller opening books, removal of any pondering routines and excess search routines.

Nelson commented on his great interest in developing a capable program suitable for any beginning or hobby chess player and thereby finding larger outlets of distribution for the Excalibur chess products. Radio Shack 2-in-1 Chess & Checkers is a very playable and capable chess program ideal for most players was one of the many creations that followed as a result of this nine month period of new program development in 1999.

Radio Shack 2-in-1 Chess & Checkers was sold to Radio Shack by Excalibur. Excalibur contracted the manufacturing to Cybertronics (Expert) in the Shenzen Province of China.

The chess program is Ron Nelson's Version 3.8 24K 4 Bit program which comprised of his 16K 4 Bit chess program plus 8K additional programming. Part of this additional 8K programming was to create a Universal I/O to allow easier adaptation to other chips used in other Excalibur chess computer models.

 

MAIN RADIOSHACK 2-IN-1 CHESS & CHECKERS MODEL 60-2725 GAME CHARACTERISTICS

 

GREAT GAMES

Select on of 16 of the world’s greatest chess games.

MATE PROBLEMS

Select one of 31 mate-in-2 problems. Problem 32 is a mate-in-3 problem.

 

          • Chess and Checker included
          • 1 or 2 Players
          • Great for beginners and challenge the most seasoned players
          • Multiple advanced training features
          • Automatic power down features
          • Large LCD Screen
          • Powerful Opponent and No Board to Setup!
          • User Selectable 16 Checker and 73 Chess Levels

 

Excerpts taken from the RADIOSHACK 2-IN-1 CHESS & CHECKERS user manual.

 

Information on RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) Electronic Travel Chess Computer
RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) Electronic Travel Chess Computer

Technical Specification

RadioShack 2-in1 Chess & Checkers (2004)

RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) Game Control Buttons
RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) LCD Dot Matrix Display
RadioShack and Tandy Model 60-2725 2-in-1 Chess & Checkers (2004) Direction control Buttons

Control Buttons

LCD Dot Matrix

Direction Buttons

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Schachcomputer.Info

Active 2017

Tourn. 2015

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MANUFACTURER

PROGRAMMER

RadioShack/Tandy Corporation

Ron Nelson

1750 USCF

2004

$49.00

Not Available

Year:

MFR ELO:

Original Price:

Wiki ELO:

Model #:

60-2725

My Serial #:

Not Available

Processor OEM

Samsung

Processor:

SAM47 S3C72P9

Speed:

Type:

4 Bit

1.5 MHz

ROM:

16 KB + 8 KB

RAM:

1056 x 4 Bit

Battery Type:

3 x AA

Power Adapter:

Not Available

Display:

LCD Dot Matrix

Board Type:

LCD Chess Board

Overall Size:

Board Size:

2x2 in

5.1/2x3.7/8x1 in

Options Select:

Button Select

Play Levels:

73

Opening Book:

34 Openings

Take Back:

Complete Game

Position Setup:

Available

Position Verify:

Available

Move Analysis:

Display Info:

Not Available

Not Available

Solve Mate:

Mate in 8

Save Game:

Available

Ponder:

Not Available

Search Depth:

16 Ply Max.

Provide Hint:

Available

Teach Mode:

Available

Change Sides:

Available

Active Level:

TM Level:

72

Infinite Level:

73

25

Hardware Specification

Game Features

Matchplay & Test ELO Ratings

Computer Game Rating

Rating Test

Other Computer Chess  Ratings

USCF

USCF

Spacious Mind

Human Rating

USCF

CCR

CCNS 2013

Ply

FIDE

USCF

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Class C Level Electronic Travel Chess Computer!

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