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a [[Dedicated Chess Computers|dedicated chess computer]] [[Module|module]] for [[Mephisto Module Systems|Mephisto module systems]] by [[Hegener & Glaser]] launched in 1990 as successor of the [[Mephisto MM IV]] with the same hardware. [[Ed Schroder|Ed Schröder's]] [[Rebel]] program ran on a [[6502|65C02]] [https://en.wikipedia.org/wiki/CMOS CMOS] processor in 32 KiB [[Memory#ROM|ROM]] with 8 KiB [[Memory#RAM|RAM]] at 5 MHz, but gained 70 Elo over its predecessor and was [[Tactics|tactically]] much stronger since it could solve deep [[Combination|combinations]], while only doing 500-600 [[Nodes per secondSecond|nodes per second]] <ref>[http://rebel13.nl/dedicated/mm5.html Mephisto MMV] from [http://rebel13.nl/index.html Rebel Pure Nostalgica] by [[Ed Schroder|Ed Schröder]]</ref>, due to searching all check giving moves in the first at least two [[Ply|plies]] of the [[Quiescence Search|quiescence search]], and even deeper if check evasion had only one or two legal moves <ref>[http://www.top-5000.nl/authors/rebel/chess840.htm#QS Programmer Stuff - Quiescent Search in REBEL] by [[Ed Schroder|Ed Schröder]]</ref>.