I like everything about it, except one thing: tier one. If he can inflict curse, he definitely doesn't belong in t1. Just sayin'.

shouldnt it be named the Knightmare Trojan?

If this were a T3 boss, you'd need to up the difficulty (add 2-trojan spawns at each phase, and maybe some environmental hazards?). Regardless, the vulnerability times would need to be greatly reduced- even Vanaduck has only a 3-second vulnerability in mask phases, and that's after the effort of dousing him. Inflicting curse would be interesting, even in T1- weak curse shouldn't take too long to shake off, and you would be able to dodge around until it wore off.

But I like this idea, you could definitely make some great levels with the chess theme idea.

I like this a lot. Since we're fighting him on a giant chessboard, why not have other pieces spawn that follow their movement rules in chess, hopping around and crushing or ramming players who took an unlucky step? I'd love if it was turn-based, just to give off a very different, tactical feel. Perhaps the players get a few seconds/number of squares to run across, and then they are anchored down, perhaps even with limited rotating time after anchoring to not make guns super powerful. Here are a few ideas for some pieces that spawn/are there from the start. They follow their chess rules unless stated otherwise.

Ramming Rook
-When it comes time to move, they speed across the board knocking the player they hit back a square and dealing a bit of damage.

Bullet Bishop
-During the enemy move+attack phase(s?) he shoots bullets. (Anchored players could still be allowed to shield)

Pathetic Pawn
-Pathetic Pawns don't do damage, or little if any. They might take a swipe at players but don't knock them back any squares.
-They take the role of meatshields, standing in the way of bullets and absorbing blows from bombs

Vile King
-Perhaps the trojan has the objective to guard him and swipe at the team offensively
-Has a chance to spawn a pawn in one of the 3 squares in front of him (in a 3x3 grid where he's the center) if the space is empty
-Doesn't move much, only if he's in danger and isn't already guarded by the trojan. Generally will move towards the trojan if it's safe.

Vile Queen
-Perhaps she could do things in-between phases to mess with players? (Swap the spots of two players if there are multiple, spawning a few extra pieces depending on the amount of players, and dropping a few traps that last for a turn or two)

If the trojan shield gave a bonus to resisting knockback/increasing shield bump, that'd be cool. ;)

Considering the chess theme, hows this for level names?

Checkered Court:

-Griever Gambit
-Bad Bishop Brawl
-Kastling Katastrophe
-Double Check Domination

And wouldn't it make more sense if this was done as a Gremlin level? (Iron Claw is a construct level)

*Updated*
Changed first level to Griever Gambit. Just sounds more evil.

Good idea but make boss room called Checkmate Corner or something.

I like this idea, but this has to be a teir 3 boss because it feels kinda wasted as a teir one boss.

I think having some giant chess-match themed levels would be decent too, as the other fiend levels are too similar and repetitive (Devilish Drudgery and Dark City are essentially the same, but Dark City has a few greavers...).
The chess pieces could be enemies that deal shadow damage. They could keep their movement patterns and such, but the vile queen would have to go.
Tier 1: The pieces would be white chess pieces that give a good amount of warning before moving, bishops would shoot less, rooks would deal less knockback, and pawns would have lower shielding capabilities.
Tier 2: Standard black chess pieces that move faster, bishops rotate faster and shoot a spread, rooks take less time to recover from bumping into obstacles, and pawns gain a simple melee attack
Tier 3: Stone chess pieces that have a purple glow coming from cracks, like trojans. Bishops gain a light melee ability to defend themselves after taking a lot of damage quickly, rooks can move twice without needing to charge up again, and pawns can leave behind a small, quickly depleting patch on the floor that inflicts a status effect (maybe stun or curse?)

The pieces would have to be in decent numbers and take a bit of time between attacks to start up again, and it would be great if they all attacked and moved together or really close to so, to give a chesslike feel (The opponent makes his moves and does his damage, then the opponent (the players) make their moves before preparing for the next wave of movement, and the battle field should involve careful strategy and a ton of anticipation).

I wanted to add that I really like the chess themed idea, since it's already part of the gate titles.

What if it were to exist as an *un-lockable* area? Perhaps when you complete all tiers on say... 5 gates (?) you unlock the chess board, only accessible through the Scarlet Fortress?? It seems like it could be a boss themed area, and this seems like just the addition it needs.

Right now we have Wildwoods, Factory, Citadel, Jelly Palace. Why not place it on one of the open tiers? Tier 2 would be good, but that's just my 2 cents.

Thanks.

I'm editing the idea to a whole new chess way.

You know how there are two levels that support the theme of the oncoming boss?
Well that's what I'm thinking of.

The first level about the chess boss is called "Black Castle"
The second level about the chess boss is called "White Castle"
The level on which the bosses are on is called "Neutral Battlefield"
(Now for the info on these levels)

On the Black Castle floor/level the chess pieces are all black.
These two levels are complete opposites of each
other black is white left is right day is night, etc.
On the White Castle floor/level the chess pieces are all white.

On the Neutral Battlefield the King & Queen of the two castle are leading their armies, but they have already received word of your violent attack on their kingdoms, so they settle there extremely many differences on the chess board (for the time being) to bring you to justice.

The monsters include
"Pathetic Pawns"
"Raging Rooks"
"Kind Knights"
"Barbaric Bishops"
"Quiet Queen"
"Conquer Kings"

With all of these they are separated into two colors Black and White
The castles are actual castles you start from the outside of the castle gates then you need to make your way to the top where there is the only spiral staircase to with the castle because you couldn't open the doors you climbed the walls for a way in.
Then in the throne room where the King and Queen's throne room are.
You notice that the King's chair is abnormally larger that his wife's, but you head on down to the next castle anyway.

The castle or White is exactly the same, but completely flipped around from left to right.

The deeper you go within the two castles the more skilled the enemies from pawn to bishop.

Then you reach the battle field where it only takes a while to reach the bloodshed.
You notice that the kings are bigger than the snarbolax and trojan combined.
They send out their army to deal with you first.
To make it fair
Tier1- One army at a time
Tier2- All pawns at once then all skilled pieces of both colors at once
Tier3- Both armies at once

Then the kings become furious and sent down their wives who they hold in their hands
Tier1- One King at a time
Tier2- One King and a trojan of their color to assist him at a time
Tier3- Both Kings and two black and white trojans at once

The Kings are very difficult to beat because there are two
the king steps onto the board to finish you, but the queen is running around trying to see the fight
To destroy the King you must first hurt his wife he has a minor "heart attack"/in shock so he goes down on one knee his hand touches the floor and his hand has a tatoo of a white or black crown the opposite of what color he really is you must slash this mark until you notice a crack so you have to knock him down a while, when one hand is damaged he falls on his other knee and you must crack the other one. And of course you must hurt his wife to get him down. Then after both hands are cracked you hit his wife again and he falls on his head with so much physical and emotional pain leaving his crown wide open that way you must break his crown to return him to normal size and then you must defeat him again as a normal pawn.

That was Tier 1 and after that king is done you kill the other one very time consuming.
On Tier 2 the trojans soul purpose is to protect the queen making your job a lot more difficult.
And now you have Tier 3 (O.O) i know what your thinking your going to die in two seconds... well your right lol
You need to make sure you've got a full party or you won't last two seconds.
Make sure you defeat one king first so your not overwhelmed with damage.
Don't worry you get extremely rewarded for this battle and there should be a mechaknight drop kit to help you.

I left the attacks and other ideas up to people who read this.

ramp the size to 3x, the health to 2x and get it up to tier 2 or 3. seems like it would fit a little better up there.

I like it! I like how a boss relates to a strategy board game! How about phases of a Rook's movement, Bishop's movement, and Queen's movement? Across the screen like chess! Well... It's head does resemble a Cavalry piece, why not a Calvary movement, or minions with these movements altogether? Anyway, the Checkmate Trojan sounds like a great boss, but isn't a Trojan pretty difficult for a monster on its own already? I wish somehow this would add to T1, but the boss, I think, deserves a higher tier.

You are a strange little man. At first I thought you were a kid, but now.. I do not know. But I do wish you could quit with the negativity. I also don't like how you have taken the idea and claimed it as your own. Maturity is highly respected amongst players, as well as common curtisy. Try applying these principles and I'm sure many will be much more agreeable to your own suggestions.

That's overwhelmingly stupid.
And stop putting this on page one

"He can dissapear and reappear randomly"

That would require so many bugfixes the first week...

we should put it on tier 3, as we already have 2 tier 2 bosses, and this boss seems much to powerful for tier 2.

thanks for the explanation on the invisibility/teleport thing, but may I make a suggestionative tweak to the ability?
Instead of just dissapearing except the eys, it could change form -- look more like a knight piece -- and move swiftly across the board in the appropriate shaped moves that way. He would remain invinsible during this form, and would give slight damage and chance to stun(as he moves/rams knights out of the way)
It would fit with the already relevant chess theme, and I just think it'd be cool.

EDIT: I JUST THOUGHT OF SOMETHING I DEEM COOL. the puzzles for the stratum could deal with moving a piece on a board of movable pieces to spots to enduce checkmate on the non-movable, other colored pieces. I really do not know how hard this would be to implement, I have(easily admitted) no skill programming, I just needed to get this out there before I forgot it.

We already have this. Its called Vanaduke, whom could easily pass for a trojan. I'd rather see a devilite themed boss, or a griever themed boss for a fiend stratum, or better yet, something entirely new.

T3 Fiend boss coupled with Vana's undead theme means shadow weps will be worthless in endgame.