I recently created a blog post on the topic of creating opening novelties and analyzing rare variations. If you would like to see it, I have the link here:

http://blog.chess.com/view/opening-analysis2

Here are the two openings I am currently working on. The first is an Accelerated Snake Benoni, and the second is an unnamed line against the Sämisch KID. Check out my blog to see the ideas behind them.

Now, my question to you is this: What do you think of these openings, and how would you play against them? Also, if you have created (reasonable) novelties of your own, please post them in this forum.

What is the point of Nfd7? It doesn't make sense. Is it to prepare e5 sometime soon? Other than that I have no clue.

Here is somthing I once found for Black, but it might be tough for him to play...

@CHCL: The idea is that in the Sämisch, Black needs to attack on the Queenside. By playing 6...Nfd7!?, Black transfers his pieces to the Queenside, opens up the Bishop on g7, and prepares the critical c5-break. Though it looks absurd, it's actually quite strong.

As for your move, it is interesting, yes, but very rarely applicable for a few reasons. First, the Grob is extremely rare, and generally considered dubious. That is a weak ground on which to start a "refutation." Next, there is a question of options for White. Instead of the move 5. Bxa8, which is quite risky, try playing against 5. Nf3!

See what you think from White's perspective. Taking a piece is not always the best way to proceed.

Haven't studied KID for a while; what you say makes sense.

As for the Grob, I think 5.Nf3...Rb8 6.Bc6...BxN 7.BxB...N8f6 looks fine for Black.

Well, it most certainly looks fine, but any Black player with serious intentions of best play would probably avoid the moves 2...Bxg4 and 3...d4?! entirely. At least, this is my opinion. What do you think?

I see your point. Most likely the best way to fight the Grob is to play this...

I don't have an opinion on the KID, but the Snake Benoni idea looks dismal to me... The Bishop doesn't look well posted -- it's clogging up black's d pawn and inviting tactics from white's e-pawn... and for what?  It just looks to me like you're handing White the knife, handle first. I need to see a lot more analysis before I take it seriously. I think there's good reason that move has been "overlooked."

I think he has analysis in the blog post he linked.  And the idea is the same as in the snake benoni, just played earlier. 

I have actually played Nfd7 there otb, my thought was that my knight is not going to g4 or anything since the pawn is on f3 and the queenside knight can then go to a6, pawn break with e5 and put one of the knights on c5.  It can be okay.

Nfd7 is a common idea in the KID for lines where black quickly trades his light square bishop. Here it looks like the bishop will be a problem piece for a very long time. What is your plan for utilizing that bishop? At a glance the only thing I could figure out for the light bishop is the nimzo-esque plan of b6 Ba6 Nc6-a5 and maybe Ne5 trying to pressure c4. However so long as white has reinforced the c3 knight b3 should pretty much end black's play. 

It looks like black's basic plan ignoring the light bishop in the position is to play c5 to entice d5 then to move the knight to e5. Here I imagine the other knight would eventually wind up on d7 anyway and I'm not sure if black has gained anything by this move order.

Also do be considerate that you are putting extra energy into removing pieces from the defense of your king in a variation where white is preparing an attack. 

The ..Nfd7 Sämisch looks sound to me.  If there is one criticism of the move it is that it allows 7.Nh3 (.: Nf2) without the possibility of ...Bxh3.  The f2 square is a great place for the KN where it supports the Kside pawns and does not interfere with the KB.  Usually White has to do some convoluted dance to get his Ns to c3 and f2.

I have played ..Nfd7 against the London:

At first I was suspicious of your Snake Benoni move order since it allows White the possibility of recapturing on d5 with the e pawn and not the c pawn.  But when I looked at it on a board I realized that this is the one variation where that less imbalanced structure doesn't necessarily favor White... because in the Snake Black will be the first one to get a rook to the e file.  Also there's this idea to go to e5 - not c7 - which I think could be good:

@JG27Pyth: Just like MetaKnight mentioned, the blog contains plenty of analysis to assure you the opening is sound.

@pellik: In this line, Black's plan is to expand quickly on the Queenside with moves like c5 and possibly an eventual a6/b5 maneuver. After things open up, the Bishop will have plenty of places to go. As for the move order differences, I think my analysis, when combined with GreenCastleBlock's comments, will demonstrate the difference beautifully.

@GreenCastleBlock: Yes, but there are certain lines I will mention once I publish my analysis where Black actually plays ...Bxc3, endangering the White King. Once he castles on the Kingside, his static disadvantage in pawn structure will make up for the lost Bishop. It actually is quite similar to a Nimzo-Indian, when you think about it.

On another point, your Accelerated Snake line has a few problems. First, the idea behind this move is to avoid trading too early. As I mentioned in my blog, I suggest an immediate 5...Be5. Trading may occur later if and only if White does not play g3 at some point.

@CHCL: Yep, I totally agree.

This isn't really a novelty, but I can't find any decent players who play it:

4...Bd6 seems more like a novelty rather than a good move.

You can laways argue that someone doesn't understand, but I really don't get the point behind blocking the d7 pawn.

That's actually not bad. You can just bring your knight to b6.

The idea is to develop the knight to b6 and allow the deployement of the blocked in f7 pawn.

@Yereslov:

That actually looks like quite a strong line to be so rare at high-level play. A couple of things about your analysis, though. The move 9...Nc6? is a terrible blunder after 10. Qc5! stopping Black from castling. Thus, the move 9...d6 is necessary. If you keep analyzing that variation, be sure to post some analysis here! :D

As for the Accelerated Snake, 4. Bd6!? is actually a fine move, as the Bishop plans to move to c7 or e5, as the case may be. Also, your analysis of my KID variation is slightly mistaken. The point of the move is more based on transferring pieces to the Queenside, as that is where Black is supposed to attack in the Sämisch Variation, since White castles there in most lines.

Nc3 is reccomended by computer analysis. Every other move seems to fail.

In fact, this variation is dubious. If someone can actually manage to win on whites side against a decent player, I would be surprised. 

I play this mainly to get of opening theory since most of the Ruy Lopez is already booked.

I checked your line. It doesn't seem to make much of a difference. 

Nc6 isn't a blunder. The game is dead equal after black castles.