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    Very cool. Currently on Condition, is this meant to be possible with just or(1), and(1), inv(1), is_neg(16) and is_zero(16)? I can’t see how it could be, shouldn’t there be an add(16) and negate(16) for this?

    EDIT: I ended up skipping Condition. The rest were all very enjoyable.

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      It is certainly possible. No need for arithmetic computation, only different ways of comparing against Zero. Maybe you misunderstood something about the specification?

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        Yeah I think I read it the first time as comparing two numbers instead of just comparing one number to zero. Opened it up and did it quite quickly today.

      2. 3

        I think condition is impossible! I did ever other level though.

        I emailed the author thanking him for the great game & pointing out this level was not solvable.

        Edit: OK I finally did it! It wasn’t impossible, just very hard!

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          Why would you need add(16) or negate(16)?