user47: Most of my chess preparation and studying used to revolve around ChessBase products.  I stored my databases and notes in .cbh files, used computers with the ChessBase interface to study and do preparation, and used the tools that Fritz 12 gave as an aid.
Unfortunately, ChessBase doesn't seem to make these products for the OS X operating system.  What software is there that lets me study chess, open .cbh files, and use chess computers on a Mac?

user1311: As it is related closely to this question (but please read my comment qualifying this also):- 
I would like to add my post on setting up : 
CHESS ANALYSIS ON MAC OS X LION 10.7 USING STOCKFISH AND HIARCS ENGINE
http://fianchetto.org/2012/02/12/chess-analysis-on-mac-os-x-lion-10-7-using-stockfish-and-hiarcs-engine/
Summary below: 
INSTRUCTIONS
Basically to get a strong chess computer on Mac you have to do 2 things:
1) get the engine that basically analyses the possible moves and gives you the evaluation of current position with “best play”  - This engine is usually free, this can be HiARCs  or Stockfish and there are probably others.
2) you need a GUI – a interface basically so you can easily drag moves and then you link this to your engine. For HiARCs and Stockfish you need what is called a UCI type of GUI.
Now if you have 30 euro spare then you might want to try Shredder which has a demo version for free and you can get this from their website. This is engine and GUI in one and simple and reasonably professional.
However – if you are a bit intrepid and stingy as I am then you could follow these instructions:
1) Get the engine first, download Stockfish – you want a binary version, as of writing this is here:
2.2.2 binary download for mac.
Now once downloaded, open up the .zip and inside go into the Mac folder. Now click Finder > Edit > copy and we will paste this file in a short while, into our GUIs engine folder. So we must get that now…
2) Now next you need your GUI app. For the GUI I recommend a free one –  JOSE
Just check the link for full discussion.

user7711: I was able to install ChessBase on in OSX Yosemite using crossover.  It is working well for me, and this way i don't have to boot a separate virtual machine just to launch it.

user46: It's probably a lot easier to install Windows (via Bootcamp) on your Mac, which is hopefully not too old.

user657: For native OSX databases you're pretty much limited to SCID and Exachess unless you want to go the Parallels route and use windows software from there. You might be able to rig up WINE and run it on the later versions of OSX; not sure, never tried it.
In both of these you'll be missing the high-end features of chess base, such as the opening report. I'm not aware of anything on OSX that opens the .cbh format files. ChessBase got really closed after the older (CB6 and earlier) file format was decoded and distributed. I'm not aware of anyone who has decoded their cbh format.
ChessBase, back in the day, tried to create a Mac product, but it was slow, buggy and under-featured compared to their Windows version, and when it didn't sell well they blamed the Mac user base instead of their own lack of skill for it and vowed never to build another version for the Mac.
As for "use chess computers," I suspect you are referring to top chess-playing software. Fritz, being a CB product, will never appear for OSX. However, most of the rest of the top names already have an OSX version: HIARCS, Shredder, Stockfish; Rybka and Houdini have yet to appear on OSX.

user1317: I agree that installing Windows via Bootcamp is a good course of action. You may also want to consider Hiarcs' Mac Chess Explorer:
http://www.hiarcs.com/mac-chess-explorer.htm
It has many of the same functions as ChessBase, and is from a developer who has an excellent history of supporting his Mac products. The program works with .pgn files, so being able to use ChessBase via Bootcamp is convenient for converting files from .cbh for .pgn format.
Having paid a lot of money for the original Mac version of ChessBase, which was total vaporware, I will never buy another Chessbase product. Frederic Friedel stole my money once. He will not get a chance to do so again.

user167: I highly recommend Scid ("Shane's Chess Information Database"). Here's a screenshot of the Mac version (more to be found at Softpedia):

It is completely free, has lots of functionality, and is fast (handles my 5.2M game database quickly and fluidly). I have only used Scid in its Linux and windows versions, not the Mac. But from what I understand there are no appreciable differences in the software across these operating systems, and I've certainly never noticed any real differences between the Linux and windows versions in my own use. A few notes:
1. Scid cannot open .cbh files directly, but you should be able to use the ChessBase products you've been using to export to PGN, which Scid can then import into databases in its own format.
2. This doesn't apply to you, but for those who have never owned ChessBase but do have some ChessBase files that they'd like to import into Scid, there is a way to do so without buying any ChessBase products, at least on a PC. The old Fritz 5.32 is now freeware, and can be used to convert ChessBase files to PGN. (Amazingly, I know of no other free program that can do this; maybe someone else does.)
3. Scid plays very well with chess engines for use in analyzing games. I have Houdini 1.5 (the free version before it went commercial with 2.0), some version of Stockfish (free), and some version of Crafty (free) in use with my Scid.
4. One potential drawback, but only if you're on an older OS X: you can download the Mac version here, and it is pointed out there that the executable is available only for Mac OS X 10.5 or later; if you're using an older version, you'll have to build the program from its source code. They have instructions for doing so though, so it might not be too big of an issue anyway.
5. While I'm at it, I'll point out that some other developer made a free android app called Scid on the go, which I have used on my android tablet. It's scaled down from regular Scid quite a bit, and I've really only used it in a read-only way (data entry's not really fun on a tablet anyway IMO). But I have my big games database synced across devices using Dropbox, and it's nice to be able pull up games when I've only got my tablet with me.
I'll end by adding that Scid is the only database program I've ever really used, so do know that my recommendation comes without me having much experience with ChessBase or other commercial alternatives to compare it to. But that's also because I've never had any reason to; Scid really is great, and again, all the software I've mentioned here is completely free.

47: <p>Most of my chess preparation and studying used to revolve around ChessBase products.  I stored my databases and notes in .cbh files, used computers with the ChessBase interface to study and do preparation, and used the tools that Fritz 12 gave as an aid.</p>

<p>Unfortunately, ChessBase doesn't seem to make these products for the OS X operating system.  What software is there that lets me study chess, open .cbh files, and use chess computers on a Mac?</p>
 1311: <p>As it is related closely to this question (but please read my comment qualifying this also):- </p>

<p>I would like to add my post on setting up : 
CHESS ANALYSIS ON MAC OS X LION 10.7 USING STOCKFISH AND HIARCS ENGINE</p>

<p><a href="http://fianchetto.org/2012/02/12/chess-analysis-on-mac-os-x-lion-10-7-using-stockfish-and-hiarcs-engine/" rel="nofollow">http://fianchetto.org/2012/02/12/chess-analysis-on-mac-os-x-lion-10-7-using-stockfish-and-hiarcs-engine/</a></p>

<p>Summary below: 
INSTRUCTIONS</p>

<p>Basically to get a strong chess computer on Mac you have to do 2 things:</p>

<p>1) get the engine that basically analyses the possible moves and gives you the evaluation of current position with “best play”  - This engine is usually free, this can be HiARCs  or Stockfish and there are probably others.</p>

<p>2) you need a GUI – a interface basically so you can easily drag moves and then you link this to your engine. For HiARCs and Stockfish you need what is called a UCI type of GUI.</p>

<p>Now if you have 30 euro spare then you might want to try Shredder which has a demo version for free and you can get this from their website. This is engine and GUI in one and simple and reasonably professional.</p>

<p>However – if you are a bit intrepid and stingy as I am then you could follow these instructions:</p>

<p>1) Get the engine first, download Stockfish – you want a binary version, as of writing this is here:</p>

<p>2.2.2 binary download for mac.</p>

<p>Now once downloaded, open up the .zip and inside go into the Mac folder. Now click Finder > Edit > copy and we will paste this file in a short while, into our GUIs engine folder. So we must get that now…</p>

<p>2) Now next you need your GUI app. For the GUI I recommend a free one –  JOSE</p>

<p>Just check the link for full discussion.</p>
 7711: <p>I was able to install ChessBase on in OSX Yosemite using crossover.  It is working well for me, and this way i don't have to boot a separate virtual machine just to launch it.</p>
 46: <p>It's probably a lot easier to install Windows (via <a href="http://support.apple.com/kb/HT1461" rel="nofollow">Bootcamp</a>) on your Mac, which is hopefully not too old.</p>
 657: <p>For native OSX databases you're pretty much limited to SCID and <a href="http://www.exachess.com" rel="nofollow noreferrer">Exachess</a> unless you want to go the Parallels route and use windows software from there. You might be able to rig up WINE and run it on the later versions of OSX; not sure, never tried it.</p>

<p>In both of these you'll be missing the high-end features of chess base, such as the opening report. I'm not aware of anything on OSX that opens the .cbh format files. ChessBase got really closed after the older (CB6 and earlier) file format was decoded and distributed. I'm not aware of anyone who has decoded their cbh format.</p>

<p>ChessBase, back in the day, tried to create a Mac product, but it was slow, buggy and under-featured compared to their Windows version, and when it didn't sell well they blamed the Mac user base instead of their own lack of skill for it and vowed never to build another version for the Mac.</p>

<p>As for "use chess computers," I suspect you are referring to top chess-playing software. Fritz, being a CB product, will never appear for OSX. However, most of the rest of the top names already have an OSX version: <a href="http://www.hiarcs.com" rel="nofollow noreferrer">HIARCS</a>, <a href="http://www.shredderchess.com" rel="nofollow noreferrer">Shredder</a>, <a href="http://stockfishchess.org" rel="nofollow noreferrer">Stockfish</a>; Rybka and Houdini have yet to appear on OSX.</p>
 1317: <p>I agree that installing Windows via Bootcamp is a good course of action. You may also want to consider Hiarcs' Mac Chess Explorer:</p>

<p><a href="http://www.hiarcs.com/mac-chess-explorer.htm" rel="nofollow noreferrer">http://www.hiarcs.com/mac-chess-explorer.htm</a></p>

<p>It has many of the same functions as ChessBase, and is from a developer who has an excellent history of supporting his Mac products. The program works with .pgn files, so being able to use ChessBase via Bootcamp is convenient for converting files from .cbh for .pgn format.</p>

<p>Having paid a lot of money for the original Mac version of ChessBase, which was total vaporware, I will never buy another Chessbase product. Frederic Friedel stole my money once. He will not get a chance to do so again.</p>
 167: <p>I highly recommend <a href="http://scid.sourceforge.net/" rel="nofollow noreferrer">Scid</a> ("Shane's Chess Information Database"). Here's a screenshot of the Mac version (more to be found at <a href="http://mac.softpedia.com/progScreenshots/Scid-Screenshot-38051.html" rel="nofollow noreferrer">Softpedia</a>):</p>

<p><img src="https://i.stack.imgur.com/OjrAR.jpg" alt="Softpedia screenshot of Scid on a Mac"></p>

<p>It is completely free, has lots of functionality, and is fast (handles my 5.2M game database quickly and fluidly). I have only used Scid in its Linux and windows versions, not the Mac. But from what I understand there are no appreciable differences in the software across these operating systems, and I've certainly never noticed any real differences between the Linux and windows versions in my own use. A few notes:</p>

<p><strong>1.</strong> Scid cannot open .cbh files directly, but you should be able to use the ChessBase products you've been using to export to PGN, which Scid can then import into databases in its own format.</p>

<p><strong>2.</strong> This doesn't apply to you, but for those who have never owned ChessBase but do have some ChessBase files that they'd like to import into Scid, there is a way to do so without buying any ChessBase products, at least on a PC. The old <a href="http://freechess.50webs.com/fritz.html" rel="nofollow noreferrer">Fritz 5.32</a> is now freeware, and can be used to convert ChessBase files to PGN. (Amazingly, I know of no other free program that can do this; maybe someone else does.)</p>

<p><strong>3.</strong> Scid plays very well with chess engines for use in analyzing games. I have Houdini 1.5 (the free version before it went commercial with 2.0), some version of Stockfish (free), and some version of Crafty (free) in use with my Scid.</p>

<p><strong>4.</strong> One potential drawback, but only if you're on an older OS X: you can download the Mac version <a href="http://cachivaches.chauca.net/scid/" rel="nofollow noreferrer">here</a>, and it is pointed out there that the executable is available only for Mac OS X 10.5 or later; if you're using an older version, you'll have to build the program from its source code. They have instructions for doing so though, so it might not be too big of an issue anyway.</p>

<p><strong>5.</strong> While I'm at it, I'll point out that some other developer made a free android app called <a href="https://play.google.com/store/apps/details?id=org.scid.android&amp;hl=en" rel="nofollow noreferrer">Scid on the go</a>, which I have used on my android tablet. It's scaled down from regular Scid quite a bit, and I've really only used it in a read-only way (data entry's not really fun on a tablet anyway IMO). But I have my big games database synced across devices using Dropbox, and it's nice to be able pull up games when I've only got my tablet with me.</p>

<p>I'll end by adding that Scid is the only database program I've ever really used, so do know that my recommendation comes without me having much experience with ChessBase or other commercial alternatives to compare it to. But that's also because I've never had any reason to; Scid really is great, and again, all the software I've mentioned here is completely free.</p>
