
When purchasing a database with the lofty name 'Mega' Database, you expect content that is best described in extremes, and rest assured it lives up to its name and reputation.
- Close to 6.5 million games
- Over 68,500 commented games
- Uses a new Playerbase with nearly 390 thousand player names
- 35 thousand pictures
6,466,288 games games
The number is hard to grasp. After all, even the most devout competitive players will play at most a couple of thousand games in their careers on average, so how do you fit in millions? The fact is that chess has sped up the number of games and material available over the years, thanks to the internet. On average, hundreds of thousands games are being added each year, from modest amateur competitions and chess leagues, to the elite events we all follow and admire throughout the year.
However, not only are the year's games included, but also newly uncovered games found in nearly forgotten chess books, magazines and more. That is how even players long dead such as Alekhine or Botvinnik still see their number of games increase over the years.
68,500 commented games
This number too is hard to get one's head around. After all, even large collections of commented games rarely include more than 100 games in a single hefty volume, and here it is basically saying there are 685 of those hefty volumes.

On the left you can see the list of annotators, listed by order of the most commented games.
On the right is the list of games commented by Radjabov, and whose games they were. For
example, Anand has in excess of 200 self-commented names, Kasparov has nearly 60, etc.
How good and interesting are they? They are all relevant, and it depends. You will find rare masterpieces commented by modern grandmasters, as well as including notes found in sources of the time. That is how you will find snippets from Lasker, comments by Capablanca, and many more, and of course the top players of today.
Each year, ChessBase Magazine publishes games played and commented by the very best players in the world, including Magnus Carlsen, Hikaru Nakamura, Fabiano Caruana, Vishy Anand (whose commented games in Mega number the hundreds), Vladimir Kramnik, and so many more. Each year those commented games are added to the next edition of Mega Database.
Here is a game, chosen fairly randomly (it needed to be a top player), to give you an idea on what to expect:
Teimour Radjabov vs Magnus Carlsen (Linares 2008)
(Annotated by Teimour Radjabov)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 4.0-0 4...Bc5 5.c3 0-0 6.0-0 d5 7.Nbd2 dxe4 8.Nxe4 8.dxe4 8...Nxe4 9.dxe4 Qf6 9...Qxd1 10.Rxd1 10.Qe2 10.Qd5 Bd6 11.Bxc6 bxc6 12.Qxc6 Bg4 10...Bg4 10...h6!? 11.Bxc6 11.Rd1?! Ne7 12.b4 12.Be3 Bxe3 13.Qxe3 Bg4 14.Be2 Ng6 15.g3 b6 16.Ne1∞ 12...Bb6∞ 11.Be3 Bxe3 12.Qxe3 Ne7= 11...bxc6 12.Be3 11.h3 Bxf3 11...Bh5 12.g4 Bg6 13.Bg5 Qe6 14.Rfd1± 12.Qxf3 Qxf3 13.gxf3 Ne7 13...f5 14.b4 14.Be3 Bxe3 15.fxe3 14.Bc4+ Kh8 15.Bd5 14...Bb6 15.Bc4+ Kh8 16.a4 14.f4!? 14.b4!? Bd6! 14...Bb6 15.a4 a5 15...c6 16.Bc4 16.Be2!? a5 17.Rb1! axb4 18.Rxb4 Nc8 19.Rd1 c5 20.Rb5± 16...a5 17.Rd1 17.Rb1?! axb4 18.Rxb4 Nc8 19.Rd1 Bc5 17...Rfd8 18.Be3 18.Bg5 Kf8 19.Rdb1 19.Rxd8+ Rxd8 20.Rb1!? f6 21.bxa5 Bxa5 22.Be3 b6 23.Rb3 c5 16.bxa5 Rxa5 16...Bc5 17.Rd1± 17.Ba3 c5 18.Rfd1± 15.Be3 a5 16.a3 Ng6∞ 14.Bc4!? 14...c6 14...Ng6 15.f5 15.fxe5 c6 16.Ba4 Rad8 15.Be3 Bxe3 16.fxe3= 15...Nf4 15...Nh4 16.Be2± 16.Bxf4 exf4 17.e5!? 17.Rad1 Rfd8 17...c6 18.Ba4 18.e5 c6 19.Bc4 f3 20.Bb3 Kf8∞ 17.Kg2 Rfd8 18.Rad1 18.e5 c6 19.Bc4 Rd2 18...g5?! 18...f6 19.Kf3 19.Bd3!? 19...Rxd1 20.Rxd1 Bd6 21.Bc4+ Kf8 22.h4 19.e5! 19.Kf3 f6! 19...Kf8 20.f6± c6 21.Bc4 Bb6 22.Kg4 h6 23.Kh5 Rxd1 24.Rxd1 Rd8 25.Rxd8+ Bxd8 26.e5 Bb6 27.f3± 19...c6 20.Ba4 h6 21.f6 20.h4 h6 21.Bd7 21.e5 fxe5 22.Rde1 Be7= 21...Kg7 22.Rg1 Bd6 23.Be6 a5 24.a4 19...c6 20.Bc4 b5 21.Be2± 17...Rfd8 18.Rad1 15.Bc4 exf4 16.Bxf4 Ng6 17.Bg3 Rfe8 18.Rfe1 18.Bd3 Rad8 18...h5 19.Rad1 h4 20.Bh2 Ne5 21.Be2 19.Rad1 Ne5 19...Bd6 20.f4 20.Be2 18...Rad8 19.Rad1! Rxd1 20.Rxd1 Rxe4 21.Rd8+ Nf8 21...Bf8?! 22.Bd3 Re6 22...Re1+ 23.Kg2 Rd1?? 24.Kf3+- 23.Ra8± 22.Bd3 Re1+ 23.Kg2 a5 23...g6?! 24.b4 Bb6 25.Rb8 Re7 25...Rd1 26.Be4 Rd7 27.a4 f5 28.Bf3 26.a4 Rd7 27.Be4 27.Be2 Bd8 28.b5 Ba5 29.c4 cxb5 30.axb5 Bb4 31.Bf3 b6 32.Ra8 24.Ra8 Rd1 25.Bc4 25.Be4 g6 26.Rxa5 Ne6 26...Bd6?! 27.Ra7!? 27.Bf3 Rd2 28.Bxd6 Rxd6 29.Ra7! 27...Bxg3 28.Kxg3 Rd7 29.a4± 27.a4 Kg7 28.b4 Bd6 29.Bxd6 Rxd6 30.Ra7 25...Bb6? 25...b6! 26.a3 Ra1‼ 27.Ra7 27.Rc8 a4! 28.Rxc6 Rb1 29.Rc7 Ne6 30.Rc8+ Nf8= 27...Ne6 28.Ra8+ Nf8 29.h4 g6 30.Bf4 h5 26.Rb8! Rd7 27.Ba6! bxa6 27...Bc7 28.Bxc7 28.Rxb7 Bxg3 29.Kxg3± 28...Rxc7 29.Rxb7 Rxb7 30.Bxb7 c5 31.Kf3 Nd7 32.Ke4 Nb6 33.Bc6± 28.Rxb6 f6 28...f5?! 29.Rxc6!? 29.Rxa6!? Ng6 30.h4 f4 31.h5 fxg3 32.hxg6 hxg6 33.Kxg3 Rd2 34.b4 34.Rxa5 34...Rd3+ 35.f3 Rxc3 36.Rxa5± 29...Rd2 29...Ng6 30.Bd6+- 30.Rxa6 Ng6 31.h4 f4 32.h5 fxg3 33.hxg6 hxg6 34.Kxg3± 29.Rxa6 29.Rxc6!? Rd2 30.Rxa6 Rxb2 31.Rxa5 g5 32.a4± 29...Rd2 30.b4 axb4 30...Rxa2 31.Rxa5 Re2 32.Ra6 Re6 33.c4 Kf7 34.b5 cxb5 35.cxb5 Re1 36.Ra7+ Ke6 36...Kg6 37.Bd6 Ne6 38.b6+- 37.Rxg7 Rb1 38.Rb7± 31.cxb4 Rb2?! 31...Ng6! 32.a4 32.Rxc6 Rxa2 33.b5 Rb2 32...Ne7 32...f5 33.Bb8± 33.a5!? 33.Ra7 Nf5 34.a5 Ra2 35.Ra6 Ra4 36.Rxc6 36.Rb6 Nxg3 37.fxg3 c5 38.bxc5 Rxa5 39.c6 Rc5 40.Kf3 Rc4= 36...Rxb4 37.a6 Ra4 38.Bb8 33...Kf7 34.Bf4 Rc2 34...Rd4 35.Be3 Rxb4 36.Ra7!+- 35.Bd6 Nd5 36.Ra8 Ke6 37.Bc5± 31...f5 32.a4± 32.Bd6 Ne6?! 32...Ng6 33.a4± Rc2 34.a5 Kf7 35.Bc5 Nf4+ 36.Kf3 Nd5 37.Rxc6+- 33.a4+- Rc2 34.a5 34.Ra8+ Kf7 35.Rc8 34...Kf7 35.Bc5!? 35.Rb6+- 35...Nf4+ 36.Kf3 Nd5 36...Nd3 37.Ke3! Nxc5 38.Rxc6+- 37.Rb6! 37.Rxc6+- 37...Rc4 37...Kg6 38.a6 Rc3+ 39.Ke2+- 38.Rb7++- Kg6 39.a6 Rc3+ 40.Kg2!? 40.Ke2 Nf4+ 40...Ra3 41.a7 Nc3+ 42.Kd3 Nb5+ 43.Kc2 h5 44.Kb2 Ra4 45.Rb8+- 41.Kd2 Ra3 42.a7+- 40...Nf4+ 41.Kg1 41.Kh2 Rxh3+ 42.Kg1 Ne2+ 43.Kf1 Nf4= 41...Nxh3+ 42.Kh2 Nf4 43.Be3 43.a7 Rh3+ 44.Kg1 Ne2+ 45.Kf1 Nf4 46.Ke1 Nd3+ 46...Ra3 47.Kd2+- 47.Kd2 Nxc5 48.a8Q Nxb7 49.Qxb7 Rh4 50.Kc3 1–0
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Radjabov,T | 2735 | Carlsen,M | 2733 | 1–0 | 2008 | C65 | Morelia/Linares 25th | 6 |
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35 thousand pictures
This is more than a gimmick, this is a luxury, and a record of a player's career. Take Boris Spassky for example, a player with a long career, and Vlastimil Hort, another fixture of the second half of the 20th century.

Pulling up a game from 1962 between the two from the world U26 championship
shows a very young Hort, aged 18 (note the ages in parentheses) and Spassky
who is 25. Suppose we roll the clock forward to... 1975.

Now we see an adult Hort, 31 years old (again, note the age in parentheses)
facing a 38-year-old Boris Spassky. The pictures have changed to reflect this.

Finally we leap forward in time to 1999 where we have a graying Hort, 55, and
Spassky, silver haired and 62
Certainly the pictures cannot be considered essential to studying, but putting a face to the player is certainly pleasant, and reminds us there was a person behind those moves, struggling and competing. In fact, even when there are no photos to go by, such as the great Philidor, images depicting him are used instead.

If you own Mega 2016, or a previous edition, and do not see the player photos,
open a game from Mega and in the View tab put a check in Players Photos
A year of updates
When evaluating the price of Mega Database, it bears mentioning that included in the package is a subscription to the ChessBase update system. This alone is a 49 Euro value in and of itself. In a nutshell, using ChessBase program, you receive a serial number that allows you to update the database with the latest games of the week, thousands of games, and all with the same standard of names of players and events. Anyone who recalls the databases years back with half a dozen Korchnois, all with different spellings, to cite but one example, can appreciate the importance of this.
This subscription not only will start as of the week Mega was finalized, meaning you will not miss games played in November and December 2015, but will continue throughout the entire year of 2016.
Available in the ChessBase Shop