You probably know that i love p-space so this time i propose a p-challenge, trying to increase newbies interest on p-space handling.
You have to create a p-warrior with three given strategies. No other attacks or strategies are allowed, you just have to create the p-brain.
Warriors will compete in a round robin without self-fights, so it works like a Redcoders Frenzy round.
Pmars command line:

pmars -r 5000 -l 100 -d 200 entry1.red entry2.red

;Components for MC#6:

;strategy Imp
imp: mov.i #4,1
end imp

;strategy Core clear
ptr equ clear-3
clear: mov bmb,}ptr ;<-- must start here
mov bmb,}ptr
jmp -2
bmb: dat 7,0
end clear

;strategy Imp-gate, (wimp)
gate: jmp #0,<-3
end gate

Imp beats Core clear by 100%
Core clear beats the Imp-gate by 100%
Imp-gate beats Imp by 100%
Imp and Imp-gate ties against themselves by 100%
Core clear wins and loses 50% against self.

Each author can send two entries.

* As you see, components score perfect, like stone-scissors-paper game. The objetive is to create a p-switcher smart enough to beat your opponents, who will be doing the same, so try to prevent their switch.

* I wouldn't create a single switch-on-loss or on-loss-or-tie. They are too predictible.

* At first sight, the addaptative switcher seems to be the best engine, but be careful, it has a clear weakness: Core clear wins against self 50%, instead of tieing. This could be used by opponents to confuse it. Also other slight weaknesses can be found. The version appearing in th Lexicon is designed for RF7, it may need some tweaking and can be written shorter.

* Another option are the table switchers, who are based on state diagrams. Their success depends on the states sequence, that must be carefully designed.

* Other ideas can be very successful. Your P-brain has much time to think, and can be up to 94 instructions long.

(entries will be listed by score)