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2b
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2b is an optimization of 2D BF with 4-7 commands depending on how you count.
Commands
> go forward @ turn right = bit flip [] brackets OPTIONAL COMMANDS: . output , input
Corresponding with 2DFuck
v^<> - combinations of > and @ lrx - not needed for turing-complete ! - = . - . , - , [] - [] ? - not needed for turing-complete