The Spacious Mind
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Mephisto Lyon 16 Bit (1990)
Picture shows “Mephisto Lyon” on the 16/32 Bit Display Module.  The dot matrix display has 2 rows of 16 segments.  Each segment comprises of a grid of 5 x 8 dots (40 dots in total) which are used to draw each letter or number.

Picture shows “Mephisto Lyon” on the 16/32 Bit Display Module. The dot matrix display has 2 rows of 16 digits. Each digit comprises of a grid of 5 x 8 dots (40 dots in total) which are used to draw each letter or number.

The LYON-program is Richard Lang’s sixth World Microcomputer Chess Championship success for Mephisto. Mephisto Lyon won the 10th WMCCC held in Lyon, France with commanding 6.5 points in 7 games, finishing one point ahead of second placed Echecs 1.9 and third placed Gideon.

The 16 Bit LYON program has 128 KB Rom and 512 KB RAM. The opening library consists of more than 100,000 half moves in 13,000 variations. 

The program was improved tactically compared to its predecessor Portorose. These improvements were made by changing its selective behavior. Compared to its predecessor the LYON program selectively choses to search less moves, but searches the chosen moves on average 4 half moves deeper. The selection algorithm was also modified which allows the program to find the best moves very early in its search. The use of singular extensions were also introduced for the first time in a Mephisto computer. This allowed the program to search deeper into a tactical search line.

The program was sold in three versions: Motorola 68000, 68020 and 68030 microprocessors. This version is the Motorola 68000 16 Bit version. The playing strength is approximately ELO 2330 USCF.

“Mephisto Lyon 16 Bit” chess game module playing inside a Mephisto Muenchen Auto-Sensory Board.

“Mephisto Lyon 16 Bit” chess game module playing inside a Mephisto Muenchen Auto-Sensory Board.

Mephisto Lyon 16 Bit Module board compatibility

Board Name

Board Type

Compatible

Bavaria

Hardwood table top

yes

Exclusive

Hardwood table top

yes

Mirage

Plastic table top

no

Mobil with built-in Display

Plastic travel

no

Mobil no Display

Plastic travel

no

Modular

Metal/Plastic table top

yes

Muenchen

Hardwood table top

yes

Information

Mephisto Lyon 16 Bit (1990)

Technical Specifications

Mephisto Lyon 16 Bit (1990)

Manufacturer

Programmer

Hegener + Glaser

Richard Lang

Year:

1990

Manufacturer ELO

?

Original Price

DM 1200.00

Wiki ELO:

2102

Model #:

-

My Serial #:

0570031

Processor Type

Speed

ROM

RAM

68000

16 Bit

12 Mhz

128 KB

512 KB

Battery Operated:

N/A

Adapter Option:

9V DC 680 mA

Display Type:

16/32 Bit 16 digit 2 pos. LCD Display

Board Type:

Requires Mephisto Modular Series

Board Size:

N/A

Overall Size:

3.3/4” x 7.5/8” x 3/4”

Move Entry

Options Selection

Playing Levels

Opening Library

Take Back Moves

Auto Sensory

Push Buttons

Infinite Playing Levels

100,000 Half Moves (Ply)

Complete Game

Position Setup/Ver.

Display Move Info/Analysis

Solve Mate

Save Game/ Ponder

Hint/Teach Mode

Yes / Yes

Yes / Yes

Mate in 16

Yes / Yes

Yes / Yes

Active Level:

NORML 04

Tournament Level:

TOURN 03

Infinite Level:

INFIN

1990 World Champion

6 Key Controls

User Manual

Game Information

Mephisto Lyon 16 Bit (1990) 1990 World Champion

Mephisto Lyon 16 Bit (1990) 6 Key Controls

Mephisto Lyon 16 Bit (1990) User Manual

Richard Lang’s 6th with Mephisto WMCCC success!

Schachcomputer.Info

The Spacious Mind

Active Games (30s:1 or 60/30 etc.)

Active Games (30s:1 or 60/30 etc.)

#

W

D

L

%

ELO

#

W

D

L

%

ELO

n/a

n/a

n/a

n/a

n/a

n/a

8

4

3

1

81.25

2269

Tournament Games (180s:1 or 40/2 hrs)

Tournament Games (180s:1 or 40/2 hrs)

#

W

D

L

%

ELO

#

W

D

L

%

ELO

80

26

34

20

53.8

2129

n/a

n/a

n/a

n/a

n/a

n/a

6 Key Game Module with Motorola 68000 16 Bit inside

16/32 Bit Dot Matrix Module

Mephisto Lyon 16 Bit (1990) 6 Key Game Module with Motorola 68000 16 Bit inside

Mephisto Lyon 16 Bit (1990) 16/32 Bit Dot Matrix Module

Top View of Mephisto Lyon 16 Bit Modules inside Modular Chess Board

Mephisto Lyon 16 Bit (1990) Top View of Mephisto Lyon 16 Bit Modules inside Modular Chess Board

Chess Game Examples
 
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