I hate to say but the way to beat gadgets would be to remove them from your opponents hand as soon as he is able to search for them. This deck isn't even close to being Anti anything. To honestly make a Anti (blank) deck you have to look at the contents of the card pool to build a deck. For gadgets, most duelists don’t realize that the deck doesn't use the pool that they normally would use. This pool would share cards with Chaos Control, Monarch Control and Tomato control. A gadget deck uses very few cards from that card pool, while they placate to another. Hammer Shot is one prime example. People say that this card sucks, well lets look at the attack at any given gadget, which will be 1400 or less and then look at all of your monsters with an attack 1400 or more that would be in attack position, you'll see that Hammer Shot will hit your monsters every single time. When duelist are able to understand that you'll see a dramatic shift in construction.

so how does this stop gadgets? have you played a gadget deck with this and what is your record against gadgets decks with this one. over all this is a nice deck. but i would think that to stop a gaadget deck you would need to do one of two things, if not both:

1. stop the summoning of the gadget so that you can stop their searching effect for one another. in your current deck only solemn judgement does that.

2. hand control is the next option. i don't see don's or confiscation in your deck.

Tatami Flip
Trap - Counter
Negate the activation and the effect of effect monster that activates when it's successfully Summon, and destroy that monster.

this card comes in the next set of cards (strike of neos). this card will stop the gadgets and monarchs. my suggestion is to add in divine wrath maybe two and or main deck the decrees so that you can stop the traps that would protect your opponent's gadgets.

drop
[II] [Airknight Parshath]
[i] [Mystic Swordsman LV2]
[II] [Reinforcement of the Army]
[i] [Mirror Force]
[i] [Torrential Tribute]
[i] [Ring of Destruction]
[i] [Call of the Haunted]

add
[i] exiled force
[i] giant rat (searches exiled and wildheart)
[i] last will
[i] book of moon
[III] royal decree

i thought about suggesting don's, tomato's, and swap's but that is totally up to you. remember in a good gadget deck you will also be combatting snipe hunter as well.

Just run x3 Mophing Jar #2 in the side. Im sure the dumasses will deck themselves fast enuff. Add some Spear Cretins and you can actually make a real deckout party for them. lets see them smash / sak / fissure / hammershot their way out of this one now.

Yes!... Morphing Jar #2 was exactly what I was thinking for tech against gadgets... I was going to start side decking it... I was hoping to surprise people with it though... Considering the number of spells and traps a gadget deck runs and the lower number of monsters.. it makes a lot of sense. what happens when they have 3 gadgets on the field and you flip the morphing Jar #2? I don't know if you've ever seen it, but it is is funny. I'm really surprised morphing jar #2 has seen more play, especially in things like Cold Wave or something similiar.

Otherwise the deck looks pretty good. if it's name was changed it would get a higher rating... but for what you're going for it's not the greatest.