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Stefano Gemma's first fully functional chess program to run under DOS, developed in 1993, written entirely in 16-bit 8086 assembly [1] including an own GUI - forerunner of the Windows program Raffaela [2]. Drago, as well as Raffaela use Stefano Gemma's reinvention of Alpha-Beta, dubbed AlfaGemma [3]. They convince with an impressive speed in nodes per second, but especially due to the lack of quiescence search, are somehow restricted in playing strength [4].
Roman dragon [5]

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  1. ^ Chess software for free - Original software made in Italy by Stefano Gemma
  2. ^ Golem's Page by Gianluigi Masciulli (reocities)
  3. ^ AlfaGemma is back by Stefano Gemma, CCC, August 03, 2016
  4. ^ Drago by Carmelo Calzerano, CCC, September 25, 2000
  5. ^ Mosaic of the 3rd century BC from Caulonia, exposed in Museo Nazionale della Magna Grecia, Reggio Calabria, Image 2007, European dragon from Wikipedia, Wikimedia Commons

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