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 Mephisto 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.
Picture shows Mephisto Lyon 32 Bit 6 key controls. The directional keys are used to move through the level, options and function displayed on the 16/32 Bit display module.
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 32 Bit chess game module playing inside a Mephisto Muenchen Magnet-Sensory Board.
Board Name |
Board Type |
Compatible |
Mephisto Bavaria |
Hardwood Tournament Size |
Yes |
Exclusive |
Hardwood Table Top |
Yes |
Mirage Modular Board |
Plastic Table Top |
No |
Mobil with built-in Display |
Plastic Travel |
No |
Mobil with no Display |
Plastic Travel |
No |
Mephisto Modular Board |
Plastic Table Top |
Yes |
Mephisto Muenchen |
Hardwood Tournament Size |
Yes |
MEPHISTO LYON 32 BIT MODULAR BOARD COMPATIBILITY CHART:
Technical Specification
Mephisto Lyon 32 Bit (1990) Chess Game Module
1990 World Champ.
6 Button Controls
User Manual
Spacious Mind
Schachcomputer.Info
Active 2017
Tourn. 2015
2162
2164
T1
T2
T3
T4
T5
Final
-
-
-
-
-
-
MANUFACTURER
PROGRAMMER
Hegener + Glaser
Richard Lang
2350 German
1990
$1950.00
2150
Year:
MFR ELO:
Original Price:
Wiki ELO:
Model #:
-
My Serial #:
0566512
Processor OEM
Motorola
Processor:
68020
Speed:
Type:
32 Bit
12 MHz
ROM:
128 KB
RAM:
1024 KB
Battery Type:
Mains Only
Power Adapter:
Board Powered
Display:
Needs 16/32 Disp
Board Type:
Needs ext. Board
Overall Size:
Not Applicable
3.3/4x7.5/8x3/4
Options Select:
Button Select
Play Levels:
Infinite Amount
Opening Book:
13000 Variations
Take Back:
All Moves
Position Setup:
Available
Position Verify:
Available
Move Analysis:
Display Info:
Available
11 ply main var.
Solve Mate:
Mate in 16
Save Game:
Available
Ponder:
Available
Search Depth:
31 ply max.
Provide Hint:
Available
Teach Mode:
Not Available
Change Sides:
Available
Active Level:
TM Level:
TOURN 03
Infinite Level:
INFIN
NORML 04
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 1995
CCNS 1995
Ply 1995
FIDE
USCF
2344
2330
2329
2184
2248
Top View of Mephisto Lyon 32 Bit Module inside Mephisto Muenchen Modular Chess Board
National Master Level Electronic Chess Module!
Board Size:
6 Key Game Module - 16 Bit Motorola 68,000 Processor
16/32 Bit Dot Matrix Display Module