CXG Sierra picture taken from the box front.

The CXG Sphinx Sierra is a beginners computer with few special features. It does however allow you to set up positions, play both sides and take back moves up to eight half-moves.

LEVELS OF PLAY

The operating key marked “LEVEL” - which can be used any time when it is your turn to move - enables you to alter the speed and strength of the computer’s play. When you press this key, the corresponding light on the control panel comes on, You can choose between sixty-four different “levels”. On level 1, the computer takes an average of 5 seconds per move. On higher level, it takes more time and its playing strength is correspondingly increased; the average for level 64 is 20-25 seconds per move.

Computers that have the same program as the CXG Sphinx Sierra are:

• Model 347 - CXG Sphinx Granada
• Model 807 - CXG Sphinx Seville
• Model 240 - CXG Sphinx Royal
• Model 048 - CXG Sphinx Supra

Excalibur's Model 638E Stiletto Deluxe is identical to CXG Sphinx Sierra in design and in game settings, features and play.

Some information taken out of the CXG Sierra User Manual.

Technical Specification

CXG Sphinx Sierra (1992)

Box

User Manual

Logo

Spacious Mind

Schachcomputer.Info

Active 2017

Tourn. 2015

857

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T1

T2

T3

T4

T5

Final

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-

-

-

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MANUFACTURER

PROGRAMMER

CXG / National Telecom.

David Levy/Mark Taylor

1450 European

1992

$99.95

1087

Year:

MFR ELO:

Original Price:

Wiki ELO:

Model #:

CXG - 647W

My Serial #:

Not Available

Processor OEM

Hitachi

Processor:

HD614042SJ02

Speed:

Type:

4 Bit

0.9 MHz (3.58)

ROM:

4 K x 10 Bit

RAM:

256 x 4 Bit

Battery Type:

4 x AA

Power Adapter:

9V DC

Display:

16 Board LEDs

Board Type:

Press Sensory

Overall Size:

Board Size:

8x8 in

12x10.5/8x1 in

Options Select:

Button Select

Play Levels:

64

Opening Book:

Limited

Take Back:

8 Half Moves

Position Setup:

Available

Position Verify:

Available

Move Analysis:

Display Info:

Not Available

Not Available

Solve Mate:

Not Available

Save Game:

Available

Ponder:

Not Available

Search Depth:

Not Known

Provide Hint:

Available

Teach Mode:

Not Available

Change Sides:

Available

Active Level:

TM Level:

Not Available

Infinite Level:

Not Available

LV 64

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

Ply

FIDE

USCF

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-

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1147

943

Class F Level Electronic Table Top Chess Computer!