Introduction to Atomic Openings

Preparing for Atomic Opening Study

Before you can study the atomic openings in this part of the book, you should first master the chapters on tactics and even some of the chapters on endgames. There are reasons why this book is presented in the order that it is.

Many of the tactics taught in Part IV arise in the openings (especially knight and queen tactics). So learning those chapters first will make it easier to see the reasons behind the opening moves presented in this part of the book. The atomic opening is highly tactical (more so than in regular chess). Most of the usual White first moves are actually mate threats. So, Black must be very vigilant (White must be too, of course).

Knowing how to evaluate certain endgames is a must too in studying opening analysis. This is because so many of the openings are actually directly linked to the endgame. For example, many White openings involve winning a Black pawn, hanging on to it, and entering the endgame. So, one must know when an extra pawn in the endgame wins and when it doesn't. The idea of pawnitization is also directly linked to some openings. So, make sure you read about that in Part III of this book.

Opening Principles

Just as in chess, quick development of the pieces is one goal in the atomic chess opening. However, in atomic, the concept of development can be a bit different. For example, the nature of atomic's forcing lines dictates that the same piece can often be moved more than once (more often than in chess), castling isn't always possible or even desirable, and developing pawns can be just as important as developing pieces. In fact, a few openings revolve around making numerous pawn moves and just a couple of piece moves. It's also just a fact of atomic chess that such desirable concepts as development must take a temporary back seat to the immediate tactics and mate threats of a position. However, it is also possible to lose by attacking your opponent's king before you have adequate development. If your attack dries up, you might be left wide open to a counterattack.

Central control is also often very important in the atomic opening. Having strongly placed central pawns is sometimes crucial. This is why 1. e4 and 1. d4 are still both considered strong openings in atomic, and it is why 1. e4 and 1. d4 are both often met by 1. ... d5. Knights are also often developed to c3 and f3 hitting key central squares and threatening to mate the enemy's king. However, that old chess adage, "knights on the rim are dim," doesn't seem to have much power in atomic chess as 1. Na3 and 1. Nh3 are both considered strong openings. Also take note that 1. Nf3, 1. e3, 1. Nh3, and 1. Nc3 are all more popular than either 1. e4 or 1. d4 in atomic chess. This is at least partially explained by the desire to keep the central squares free of pawns so that pieces may pass through them or land on them in heated tactical struggles.

That king safety is as important in atomic chess as in regular chess goes without saying. The game is over once your king is lost. Sometimes king safety is addressed by castling, but sometimes it isn't. Sometimes king safety is addressed by moving pawns away from one's king so that they cannot be exploded, sometimes it isn't. There are many openings where a king gets stuck in the center of the board. This sometimes happens when a king is forced to move to d1 or d8 due to an enemy piece harrassing f2 or f7. Ironically, a move such as Kd1 or Kd8 is sometimes also a strong attacking move--indirectly. You will have to read the chapters to find out how this can be. I think that a king stuck in the center of the board survives to an endgame more often than in regular chess because, ironically, of the violent nature of the game. Pieces die off more quickly in atomic and pieces make stronger protectors (since the attacking pieces die in the explosions too). That being said, there are numerous instances when a king stuck in the center of the board can spell your doom. Very often a king blocks a rook from swinging to the opposite wing just when it is needed.

In general, there are fewer binding opening principles and there are more exceptions to principles in atomic chess than in regular chess. This, again, is due to the forcing nature of atomic. There just simply are too many tactics and mate threats early on to be worried about such things as "knights before bishops." Then again, atomic has its own little weird world of opening principles that are hard to articulate and that must be learned by playing and by looking at many specific opening variations.

Some Opening Tips

Play a variety of openings as White and a variety of defenses as Black, at least until the intracacies of the game seep in. Don't get stuck in a rut, unless of course you have found that perfect White opening that no one can seem to defend against. In general, try something new all the time. And don't believe anybody when they tell you a move is bad. Find it out for yourself, and research it thoroughly.

Don't be afraid to sacrifice minor pieces for pawns in the opening. Do this more often than not so that you can learn of the consequences. Remember, a minor piece is only worth somewhere around a pawn and a half, and sometimes that half-pawn defecit (if such a thing has any meaning) can be made up by positional factors. Especially look for ways to sacrifice knights to make way for tactics (often involving the queen). But be aware of tempo. You want to gain time for your attacks and defenses. Don't throw away moves. This means that you usually want to sac a knight by posting it aggressively where your opponent can take it with a pawn, rather than by directly taking the pawn yourself.

Opening Research

Once you've mastered basic tactics and basic endgames, and once you've played at least a few dozen games, you can begin by doing your own opening analysis off-the-board. It's actually quite easy and quite fun (due to the forcing nature of the game). Keep your own opening book written down and constantly update and correct it. When you sense a critical position, analyze all legal responses to it. The fact that a position is critical is usually revealed by the fact that more than half of all legal responses lead to short forced wins.

An excellent research tool in your study of openings is wildchess.org. If you register there (for free) you'll have expanded your research tools a bit. For example (at the time of writing), registered accounts may search the atomic opening tree 15 plies deep, whereas unregistered users only 10 ply. Don't rely on the statistics given (such as what percentage of games was won by what color) to evaluate openings, and don't rely on the pulsar engine feature either. Both of these can be misleading or outright wrong. Instead, look at actual games, and of course, do your own final analysis before making a conclusion.

Another excellent research tool is to observe high-level games at FICS. This will not necessarily give you good lines to play, but it will certainly give you many ideas of moves to analyze on your own.

Opening Names

Atomic chess is still in its infancy. As such, opening variations aren't known by common names as they are in chess (Reti, Ruy Lopez, Sicilian, etc.). However, more than once, someone has tried to systematically name the openings. At Vlasov's Atomic Chess Homepage there is a fairly large opening book complete with opening names (named after chess server usernames that played the openings). Unfortunately, these names did not stick and the newer generations of players do not use them. This is probably because this opening book has many flaws (as later research shows) and because many of the players have disappeared.

More recently, the great player siggemannen (FICS) has compiled a modern and much improved naming system given at the end of this page.

I believe that this was written a couple of years ago (from the time of writing) and it is already becoming outdated. However, many of the lines are still played and are unrefuted. This EAO, or possibly an updated version of it, is what siggemannen implemented into wildchess.org. Hopefully, siggemannen will update and publish this EAO in the future and it can become the standard.

Despite the fact that referring to atomic openings by name has not caught on, there are two openings, strangely enough, that do seem to be often referred to by name (at least by players in my generation). First, there is Vlasov's Opening (1. Nf3 e5). Note that siggemannen has renamed this "Mrundersun Defense" after the great FICS player, mrundersun, who employed this defense for probably a couple of years before eventually abandoning it (since he felt it was more or less thoroughly refuted). In my book, I refer to the position arising after 1. Nf3 e5 2. Ng5 f5 (or similar positions) as Vlasov positions.

The second opening whose name seems to mean something to many players is the "Exchange Opening" which is: 1. Nf3 f6 2. Nd4 Nh6 3. Nf5 Nxf5 (the exchange of knights is what gives the opening its name). Perhaps one of the reasons this is one of the few opening names that stuck is due to the fact that it is, surprisingly, the most popular of all atomic opening variations (at least according to the statistics at wildchess.org at the time of writing).

My Openings

In this book, I will present you with a somewhat thorough discussion of many popular opening variations at FICS. I will give the main lines as I have learned them with reasons behind the moves. Sometimes, I will go further and analyze what is generally not known, in the interest of resolving a position. I will also often show bad moves and why they are bad.

This section of the book on openings is for beginners and for advanced players. Hopefully I have blended the two tasks well.

For the most part, I try to refrain from giving too many definitive judgements on lines and positions. There is simply too great a chance I would often be wrong. Instead, I present you with my analysis and let you decide its worth for yourself. Everything here is simply my opinion (at the time of writing), and is subject to being overturned at any given time. I hope this doesn't render the chapters useless. My intent is to give you enough to work with and to mold on your own.

I have started and stopped opening projects on-line many times. I often scrap what I have done because I have found too many errors, have been dissatisfied with my analysis, or because the format became to daunting and in need of too much maintenance. I believe I have hit on a good formula now. There will be short chapters featuring one main line each. There will be no intention of weaving the chapters together into one big opening book, and there is no intention of being thorough. I simply want to get down in writing what theory is still floating around in my head from years of experience, before I simply forget it all. Hopefully, future players will build on it, refine it, critique it, and correct it.

If you believe an important move or line has been left out, feel free to add it to your own opening book. Again, I have no intention of being thorough. Thoroughness is what killed all my earlier projects. I will just let this project stand as it is, and hope that it is worth something.


EAO
Encyclopaedia of Atomic Openings
A00 - 1.a3,a4,b3,c3,c4,f3,f4,g4,h3,h4
A01 - g3 (Siggemannen Opening)
A02 - b4 (Tipau opening)
A03 - b4 e6 e3 (Tipau opening)
A04 - b4 Nf6 (Tipau opening, 1...Nf6)
A05 - b4 e5 e3 d5 (Tipau opening, center defence)
A06 - d4 (Queen Pawn)
A07 - d4 e6 (Queen Pawn, 1...e6)
A08 - d4 Nh6 (Queen Pawn, 1...Nh6)
A09 - d4 e6 e4 (Queen Pawn French Invite)
A10 - d4 d5 (Queen Pawn 1...d5)
A11 - d4 d5 c4 (Queen's Gambit)
A12 - d4 d5 c4 e5 (Queen's Gambit)
A13 - d4 d5 c4 e6 (Queen's Gambit Declined)
A14 - d4 Nc6 (Queen Pawn, 1...Nc6 Counterattack)
A15 - e4 (Vlasov-Seberg Opening)
A16 - e4 e6 (French Defence)
A17 - e4 d5 (Scandinavian Defence)
A18 - e4 d5 Nc3 (Scandinavian, Queen Knight Attack)
A19 - e4 d5 Nc3 e5 (Scandinavian, Queen Knight Attack Rekursiv Defence)
A20 - e4 d5 Nc3 b5 d4 (Scandinavian, Siggemannen Attack)
A21 - e4 d5 Nc3 b5 d4 e5 exd5 (Scandinavian, Siggemannen Attack)
A22 - e4 d5 Nc3 b5 d4 e5 exd5 Bd6 (Scandinavian, Siggemannen Attack)
A23 - e4 d5 d4 (Graukater Opening)
A24 - e4 d5 d4 e6 (Graukater Opening, MiRU Variation)
A25 - e4 d5 d4 e5 (Graukater Opening, Seberg Counter Attack)
A26 - e4 d5 d4 e5 Nf3 -(Graukater Opening, Chelpo Gambit)
A27 - e4 d5 d4 e5 exd5 (Graukater Opening, Exchange)
A28 - e4 d5 d4 e5 exd5 f6 c3 (Graukater Opening, Exchange)
A29 - e4 d5 d4 Nh6 (Graukater Opening, 2...Nh6 defence)
A30 - e4 d5 e5 (Scandinavian, Advance Variation)
A31 - e4 d5 e5 e6 Nf3 (Scandinavian, Advance, Closed Variation)
A32 - e4 d5 e5 Bg4 (Scandinavian, Advance, Bishop Counter)
A33 - Na3 (Yokke Opening)
A34 - Na3 b5 (Yokke, Standard Defence)
A35 - Na3 b5 Nf3(Yokke, 2.Nf3)
A36 - Na3 Nf6 (Yokke, Two Knights) 
A37 - Na3 e6 (Yokke, 1...e6)
A38 - e3 (Rekursiv-Hooby Opening)
A39 - e3 Nf6 Qf3 (Rekursiv-Hooby, Queen Attack) 
A40 - e3 d6 (Rekursiv-Hooby, Mrundersun Defence)
A41 - e3 d6 Qh5 g6 Nc3 (Rekursiv-Hooby, Mrundersun Defence)
A42 - e3 d6 Nc3 (Rekursiv-Hooby, Mrundersun Defence)
A43 - e3 e6 (Rekursiv-Hooby, Symmetric Variation)
A44 - e3 e6 Qf3 f5 (Rekursiv-Hooby, Exchange Line)
A45 - e3 e6 Qf3 f5 Qh5 g6 Qg5 (Rekursiv-Hooby, Exchange Line)
A46 - e3 e6 Nf3 (Rekursiv-Hooby, Knight Attack)
A47 - e3 e6 Nf3 Nc6 (Rekursiv-Hooby, Tipau-Siggemannen Counter Attack)
A48 - e3 e6 Nf3 Qf6 c3 Bc5 Bc4 Nh6 Qa4 b5 Kd1 bxa4 Ng5 Kd8 Bxe6 Ng4 Nxh7 (Rekursiv-Hooby Mainline)
A49 - e3 e6 Nf3 Qf6 Bd3 (Rekursiv-Hooby WildKiller Variation)
A50 - e3 e6 Nf3 Qf6 Bd3 Bb4 c3 Bxc4 Qa4 b5 Qd4 d6 Kd1 c5 Ng5 Kd8 Nxf7 cxd4 (Rekursiv-Hooby WildKiller Variation)



B00 - Nc3 (Tipau)
B01 - Nc3 c6 (Tipau, Old Defence)
B02 - Nc3 c6 e4 (Tipau, Old Defence, 2.e4)
B03 - Nc3 c6 e3 (Tipau, Old Defence, 2.e3)
B04 - Nc3 c6 e3 Nf6 (Tipau, Old Defence, 2.e3)
B05 - Nc3 c6 Ne4 (Tipau, Old Defence, Knight Attack)
B06 - Nc3 c6 Ne4 d6 (Tipau, Old Defence, Knight Attack) 
B07 - Nc3 c6 Ne4 d6 Ng5 (Tipau, Old Defence, Knight Attack)
B08 - Nc3 e5 (Tipau 1...e5 Defence)
B09 - Nc3 e5 Nb5 (Tipau 1....e5 Defence Knight Attack)
B10 - Nc3 e5 Nb5 Qh4 g3 Qe4 e3 Qxc2 (Tipau 1...e5 Defence Knight Attack)
B11 - Nc3 e5 e3 (Tipau 1...e5)
B12 - Nc3 e5 e3 Nh6 (Tipau 1...e5 Mainline)
B13 - Nc3 e5 e3 Nh6 Qf3  (Tipau 1...e5 Mainline)
B14 - Nc3 e5 e3 Bb4 (Tipau 1...e5 Mrundersun Defence)
B15 - Nc3 e5 e3 Bb4 Qf3 Qf6 Nh3 (Tipau 1...e5 Mrundersun Defence)
B16 - Nc3 e6 (Tipau Defence)
B17 - Nc3 e6 d4 (Tipau Defence)
B18 - Nc3 e6 d4 Bb4 e4 (Tipau Defence, Pin Variation)
B19 - Nc3 e6 Nf3 (Tipau Defence, Two Knights)
B20 - Nc3 e6 Nf3 Qf6 (Tipau Defence, Two Knights)
B21 - Nc3 e6 Nf3 Qf6 Ne4 Qd4 Nxd4 (Tipau Defence, Queen Sac Variation) 
B22 - Nc3 e6 Nf3 Qf6 Ne4 Nh6 g4 Qd4 Nxd4 Nc6 e3 Nb4 Bb5 c6 (Tipau Defence, Queen Sac Deferred)
B23 - Nc3 e6 Nf3 Qf6 Ne4 Nh6 g4 Qd4 Nxd4 Nc6 e3 Nb4 Bb5 c6 c3 Nxa2 (Tipau Defence, Queen Sac Deferred 8...Nxa2)
B24 - Nc3 e6 Nf3 Qf6 Ne4 Nh6 g4 Qd4 Nxd4 Nc6 e3 Nb4 Bb5 c6 c3 Nc2+ Kf1 (Tipau Defence, Queen Sac Deferred 8... Nc2+)
B25 - Nc3 Nf6 (Sicilian Variation)
B26 - Nc3 Nf6 f3 (Sicilian, 2.f3)
B27 - Nc3 Nf6 e3 (Sicilian, TrojanKnight Line)
B28 - Nc3 Nf6 e3 Ne4 Nxe4 (Sicilian, TrojanKnight Exchange)
B29 - Nc3 Nf6 e4 (Sicilian, Tipau)
B30 - Nc3 Nf6 e4 Ng4 f4 c6 (Sicilian, Tipau, Knight Counter)
B32 - Nc3 Nf6 e4 Ng4 f4 c6 Nh3 (Sicilian, Three Knights)
B32 - Nc3 Nf6 e4 Ng4 f4 c6 h3 (Sicilian, Tipau, Knight Counter)
B33 - Nc3 Nf6 e4 Ng4 f4 c6 h3 d5 Nb5 (Sicilian, Tipau, Knight Counter Mainline)
B34 - Nc3 Nf6 e4 Ng4 f4 c6 h3 d5 Nb5 Nh2 Rxh2 (Sicilian, Tipau, Knight Counter Mainline)
B35 - Nc3 Nf6 e4 c6 (Sicilian)
B36 - Nc3 Nf6 e4 c6 f4 (Sicilian, Fismoluni Attack)
B37 - Nc3 Nf6 e4 c6 f3 Qb6 (Sicilian, Queen Counter Variation)
B38 - Nc3 Nf6 e4 c6 Nd5 cxd5 (Sicilian, Tipau Attack)
B40 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 (Sicilian, Tipau Attack)
B40 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 h3 (Sicilian, Tipau-Siggemannen Attack)
B41 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 f3 (Sicilian, Tipau, Modern Variation)
B42 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 f3 g6 (Sicilian, Dragon)
B43 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 f3 g6 d4 Bh6 Bxh6 d6 (Sicilian, Exchange Dragon)
B44 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 f3 g6 Nh3 (Sicilian, Dragon, 6.Nh3 Attack)
B45 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 Nh3 (Sicilian, Two Knight Attack)
B46 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 Nh3 Ng4 f4 Nf2 (Sicilian, Two Knight Attack, 6...Nf2)
B47 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 Nh3 Ng4 f4 Qa5 (Sicilian, Two Knight Attack, 6...Qa5)
B48 - Nc3 Nf6 e4 c6 Nd5 cxd5 Bb5 Nc6 Nh3 Ng4 f4 f6 (Sicilian, Two Knight Attack, 6...f6)



C00 - Nf3 (King Knight Opening)
C01 - Nf3 e5 (King Knight Mrundersun Defence)
C02 - Nf3 e5 Ng5 f5 (Knight Knight Mrundersun Defence)
C03 - Nf3 e5 Ng5 f5 d4 (King Knight Mrundersun Defence 3.d4)
C04 - Nf3 f6 (King Knight)
C05 - Nf3 f6 Nd4 - (King Knight Kamikaze Attack)
C06 - Nf3 f6 Nd4 Nh6 (King Knight Kamikaze,2...Nh6)
C07 - Nf3 f6 Nd4 Nh6 Nf5 Nxf5 (Szura, Exchange)
C08 - Nf3 f6 Nd4 Nh6 Nf5 Nxf5 Nc3 c6 (Szura, Exchange Mainline)
C09 - Nf3 f6 Nd4 Nh6 Nf5 Nxf5 Nc3 c6 e4 (Szura, Exchange, 5.e4)
C10 - Nf3 f6 Nd4 Nh6 Nf5 Nxf5 Nc3 c6 e4 g6 d4 Bh6 (Szura Exchange, Fianchetto Variation)
C11 - Nf3 f6 Nd4 Nh6 Nf5 Nxf5 Nc3 c6 e4 g6 d4 Bh6 Bg5 (Szura Exchange, Fianchetto with 7.Bg5)
C12 - Nf3 f6 Nd4 Nh6 e3 (TrojanKnight-Opossum Attack)
C13 - Nf3 f6 Nd4 Nh6 e3 c6 (TrojanKnight-Opossum, 3...c6 Defence)
C14 - Nf3 f6 Nd4 Nh6 e3 c6 Nb5 (TrojanKnight-Opossum, 3...c6 Defence,4.Nb5)
C15 - Nf3 f6 Nd4 Nh6 e3 c6 Nb5 Ng4 f4 (TrojanKnight-Opossum, 3...c6 Defence,4.Nb5 Mainline)
C16 - Nf3 f6 Nd4 Nh6 e3 c6 Qh5 g6 Nb5 (TrojanKnight-Opossum, 3...c6 Defence, Queen Sac Line)
C17 - Nf3 f6 Nd4 Nh6 e3 Ng4 f4 (TrojanKnight-Opossum, Mainline)
C18 - Nf3 f6 Nd4 Nh6 e3 Ng4 f4 b5 (TrojanKnight-Opossum, Mainline)
C19 - Nf3 f6 Nd4 Nh6 e3 Ng4 f4 b5 h3 (TrojanKnight-Opossum, Mainline, 5.h3 Variation)
C20 - Nf3 f6 Nd4 Nh6 e3 Ng4 f4 b5 Nf5 e5 Nxg7 h5 (TrojanKnight-Opossum, Mainline, Queen Hunt Variation)
C21 - Nf3 f6 Nc3 (King Knight, Two Knights Attack)
C22 - Nf3 f6 Nc3 c6 (King Knight, Two Knights, 2...c6)
C23 - Nf3 f6 Nc3 Nh6 (King Knight, Three Knights)
C24 - Nf3 f6 Nc3 Nh6 g4 c6 e3 (King Knight, Three Knights, 3.g4)
C25 - Nf3 f6 Nc3 Nh6 h3 Ng4 hxg4 c6 (King Knight, Three Knights, 3.h3)
C26 - Nf3 f6 e4 (Center Attack)
C27 - Nf3 f6 e4 d5 (Center Attack 2...d5)
C28 - Nf3 f6 e4 d5 e5 Nh6 (Center Attack, Advance Variation,3...Nh6)
C29 - Nf3 f6 e4 d5 e5 e6 (Center Attack, Advance Variation,3...e6)
C30 - Nf3 f6 d4 (MoltenThinker-ThoBjo Attack)
C31 - Nf3 f6 d4 d5 g3 (MoltenThinker Line)
C32 - Nf3 f6 e3 (Atomic Attack)
C33 - Nf3 f6 e3 e6 (Atomic Attack, Nightrider Defence)
C34 - Nf3 f6 e3 e6 Nd4 (Atomic Attack, Nightrider Defence, 3.Nd4)
C35 - Nf3 f6 e3 e6 Nd4 c6 Nc3 (Atomic Attack, Two Knight Attack)
C36 - Nf3 f6 e3 e6 Nd4 c6 Nb5 cxb5 Qh5 g6 Qb5 Nc6 Qb6 (Atomic Attack, Queen Sac Variation)
C37 - Nf3 f6 e3 e6 Nd4 c6 Nb5 cxb5 Qh5 g6 Qb5 Nc6 Qb6 Kf7 Qc7 Bb4 c3 Qf8 (Atomic Attack, Queen Sac Mainline)
C38 - Nf3 f6 e3 e6 Nd4 c6 Nb5 cxb5 Qh5 g6 Qb5 Nc6 Qb6 Kf7 Qc7 Bb4 c3 Qf8 Bc4 Bxc3 Nc3 Ne7 (Rekursiv Attack, 11...Ne7 Defence)
C39 - Nf3 f6 e3 e6 Nd4 c6 Nb5 cxb5 Qh5 g6 Qb5 Nc6 Qb6 Kf7 Qc7 Bb4 c3 Qf8 Bc4 Bxc3 Nc3 Nh6 (Rekursiv Attack, 11...Nh6 Defence)
C40 - Nf3 f6 e3 d5 (Atomic Attack, Modern Defence)
C41 - Nf3 f6 e3 d5 Nd4 (Atomic Attack, Modern, 3.Nd4)
C42 - Nf3 f6 e3 d5 Ne5 (Atomic Attack, Modern, 3.Ne5)
C43 - Nf3 f6 e3 d5 Ne5 Bg4 Qf3 (Atomic Attack, Modern, 3.Ne5, Queen Sac Variation) 
C44 - Nf3 f6 e3 d5 Ng5 (Atomic Attack, Modern, 3.Ng5)
C45 - Nf3 f6 e3 d5 Ng5 Bg4 f3 fxg5 (Atomic Attack, Modern, 3...Bg4 Variation)
C46 - Nf3 f6 e3 d5 Ng5 fxg5 Qh5 g6 Qe5 Be6 (Atomic Attack, Modern)
C47 - Nf3 f6 e3 d5 Ng5 fxg5 Qh5 g6 Qe5 Be6 Qxc7 b5 (Atomic Attack, Modern, Mainline)
C48 - Nf3 f6 e3 d5 Ng5 fxg5 Qh5 g6 Qe5 Be6 Qxc7 b5 b3 (Atomic Attack, Modern, Mainline with 7.b3)
C49 - Nf3 f6 e3 d5 Ng5 fxg5 Qh5 g6 Qe5 Be6 Qxc7 b5 Nc3 Bf5 (Atomic Attack, Modern Attack, TrojanKnight Variation)
C50 - Nf3 f6 e3 d5 Ng5 fxg5 Qh5 g6 Qe5 Be6 Qxc7 b5 Nc3 Nf6 (Atomic Attack, Two Knights)


D00 - Nh3 (TrojanKnight Opening)
D01 - Nh3 e6 (TrojanKnight, 1...e6)
D02 - Nh3 e5 (TrojanKnight, Mrundersun Defence)
D03 - Nh3 c6 (TrojanKnight, 1...c6)
D04 - Nh3 f6 (TrojanKnight, Old Defence)
D05 - Nh3 f6 d4 (TrojanKnight, Old Defence, 2.d4)
D06 - Nh3 f6 e4 (TrojanKnight,Old Defence, 2.e4)
D07 - Nh3 f6 e4 e6 (TrojanKnight, Old Defence, 2...e6)
D08 - Nh3 f6 e4 d5 (TrojanKnight, Old Defence, 2...d5)
D09 - Nh3 f6 e4 d5 d4 (TrojanKnight,Old Defence,Center Variation)
D10 - Nh3 f6 e4 d5 Na3 (TCK Variation)
D11 - Nh3 f6 e4 d5 Na3 b5 d4 (TCK Variation)
D12 - Nh3 f6 e4 d5 Na3 b5 d4 Nh6 Bxh6 e5 (TCK Variation, Tipau Defence)
D13 - Nh3 f6 e4 d5 Nc3 (TrojanKnight, Tipau Attack)
D14 - Nh3 f6 e4 d5 Nc3 b5 d4 (TrojanKnight, Tipau Attack Mainline)
D15 - Nh3 f6 e4 d5 Nc3 b5 d4 Nh6 Bxh6 e5 exd5 Bg4 f3 Bd6 (TrojanKnight, Tipau Attack, TrojanKnight Defence)
D16 - Nh3 f6 e3 (TrojanKnight, Old Defence, 2.e3)
D17 - Nh3 f6 e3 e6 (TrojanKnight, Old Defence, 2.e3)
D18 - Nh3 f6 e3 e6 Bd3 (TrojanKnight, Old Defence, Szura Attack)
D19 - Nh3 f6 Nc3 (WildKiller Attack)
D20 - Nh3 f6 Nc3 c6 (WildKiller Attack, 2...c6)
D21 - Nh3 f6 Nc3 c6 e3 (WildKiller Attack, 2...c6, Mainline)
D22 - Nh3 f6 Nc3 Nh6 (WildKiller Attack, Three Knight Defence)
D23 - Nh3 f6 Nc3 Nh6 e3 Ng4 f4 c6 (WildKiller Attack, Three Knight Defence, 3.e3 Variation)
D24 - Nh3 f6 Nc3 Nh6 Nd5 e6 c3 Ng4 f3 (WildKiller Attack, Mainline) 
D25 - Nh3 f6 Nc3 Nh6 Nd5 e6 c3 Ng4 f3 Bc5 d4 (WildKiller Attack with 6.d4)
D26 - Nh3 f6 Nc3 Nh6 Nd5 e6 c3 Ng4 f3 Bc5 d4 Nf2 Qa4 c6 Ng5 (WildKiller Attack with 6.d4, 8.Ng5)
D27 - Nh3 f6 Nc3 Nh6 Nd5 e6 c3 Ng4 f3 Bc5 e3 (WildKiller Attack with 6.e3)
D28 - Nh3 f6 Nc3 Nh6 Nd5 e6 c3 Ng4 f3 Bc5 e3 Nf2 Qa4 c6 Ng5 (WildKiller Attack with 6.e3, 8.Ng5)
D29 - Nh3 h6 (TrojanKnight, Modern Defence)
D30 - Nh3 h6 d4 (TrojanKnight, Modern Defence, 2.d4)
D31 - Nh3 h6 e4 (TrojanKnight, Modern, 2.e4)
D32 - Nh3 h6 e4 d5 d4 (TrojanKnight, Modern, Center Variation)
D33 - Nh3 h6 e4 d5 Nc3 (TrojanKnight, Modern, Tipau Attack)
D34 - Nh3 h6 e4 d5 Na3 (TrojanKnight, Modern, TCK Invite)
D35 - Nh3 h6 e4 e6 (TrojanKnight, Modern, French Defence)
D36 - Nh3 h6 Nc3 (TrojanKnight, Two Knights Attack)
D37 - Nh3 h6 Nc3 e6 (TrojanKnight, Two Knights Attack, 2...e6 Defence)
D38 - Nh3 h6 Nc3 e6 Nb5 Qh4 g3 Qe4 e3 Qxc2 (TrojanKnight, Two Knights Attack with 5...Qxc2)
D39 - Nh3 h6 Nc3 e6 Nb5 Qh4 g3 Qe4 e3 a6 (TrojanKnight, Two Knights Attack with 5...a6)
D40 - Nh3 h6 Nc3 e6 d4 Bb4 e4 (TrojanKnight, Pin Variation)
D41 - Nh3 h6 Nc3 e6 d4 Bb4 e4 d5 g3 (TrojanKnight, Pin Variation with g3)
D42 - Nh3 h6 Nc3 e6 d4 Bb4 e4 d5 g3 f5(TrojanKnight, Pin Variation with g3, 5...f5 Defence)
D43 - Nh3 h6 Nc3 e6 d4 Bb4 e4 d5 Bb5 c6 O-O (TrojanKnight, Pin Variation, 5.Bb5 and 6.O-O)
D44 - Nh3 h6 e3 (TrojanKnight, Modern with 2.e3)
D45 - Nh3 h6 e3 e6 (TrojanKnight, Modern with 2.e3)
D46 - Nh3 h6 e3 e6 Nc3 (TrojanKnight, Modern with 2.e3, Two Knights Attack)
D47 - Nh3 h6 e3 e6 Nf4 g6 (TrojanKnight,Modern with 2.e3, 3.Nf4 Attack)
D48 - Nh3 h6 e3 e6 Nf4 g6 Nc3 (TrojanKnight, Modern with 2.e3, Two Knights Attack Deferred)
D49 - Nh3 h6 e3 e6 Nf4 g6 Nh5 (TrojanKnight, Modern with 2.e3 Mainline) 
D50 - Nh3 h6 e3 e6 Nf4 g6 Nh5 Qh4 g3 Qe4 Ng7+ Kd8 d3 (TrojanKnight, Modern with 2.e3, Queen Tango Variation)