It looks like it's the "smallest" in the meaning of "shortest source code", from your link. I believe quite a few softwares have already been working on iPhones and stuff.
Chess Mini - Smallest engine in the world
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Oct 11, 2013
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#3
Do you mean chess softwares for iPhone? There're literally hundreds and hundreds candidates, not just "quite a few". The smallest is of course refers to the size of the engine, not the overall size of the download.
How strong is it ? I am very curious.
Oct 11, 2013
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#5
Chess Mini actually uses Harm Muller's micro-Max engine. Probably near 2000 elo.
http://home.hccnet.nl/h.g.muller/max-src2.html
That's cool !
andywongchess wrote:
The smallest is of course refers to the size of the engine, not the overall size of the download.
Well, I thought "engine" refers to the physical device, not to the code inside it.
So I thought from the title you were showing me my way to an easy 2500 rating, but apparently I just misread it.
Oct 11, 2013
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#8
Yes. The engine is about 2000 and can actually beat you if you're not careful. While it doesn't blunder, it plays unsound positional moves. You just need to restrain yourself from losing a piece, then you'll win.
Oct 11, 2013
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#9
Chess engine usually refers to the actual piece of code for calculating moves and performing search. Micro-Max only counts the materials. It knows nothing about isolated pawn, for example. If you want to beat a chess engine in full strength, Micro-Max is best possible candidate.
Oct 11, 2013
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#10
andywongchess wrote:
If you want to beat a chess engine in full strength, Micro-Max is best possible candidate.
Well, there are lots of amateur engines that are rated much lower than micro-Max.
Oct 11, 2013
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#11
True. But they don't provide better experience when playing against a human. You don't want an engine that is too weak and drop a piece to you for nothing. Micro-Max doesn't bluder, it doesn't lose any material to you without some inputs from you. You really need to do some works for your win. It's very hard to find a good engine rated below Elo 2200 because a standard chess algorithm can easily push the strength over 2200.
Oct 11, 2013
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#12
andywongchess wrote:
True. But they don't provide better experience when playing against a human. You don't want an engine that is too weak and drop a piece to you for nothing. Micro-Max doesn't bluder, it doesn't lose any material to you without some inputs from you. You really need to do some works for your win. It's very hard to find a good engine rated below Elo 2200 because a standard chess algorithm can easily push the strength over 2200.
You seem to forget (or not be aware) that many people will never be able to beat a 2000 elo engine, ever. 
May 6, 2017
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#13
Chess-mini provides a real fun challenge. I play it at 5 secs per move and it usually wins. My favourite chess engine app .
Two other candidates are Turing’s Machine and Primus both of which have no opening book. Both provide a similar playing experience to Chess Mini, but Chess Mini has plenty of opening variety.
Please try the smallest chess engine in the world:
https://itunes.apple.com/us/app/chess-mini/id616424231?mt=8