Perhaps this explains it:

C:\test>\perl32\bin\perl -wnle"print $]; split; print join '|', @_"
Use of implicit split to @_ is deprecated at -e line 1.
evry good boy deserves food
5.008009
evry|good|boy|deserves|food

C:\test>\perl64\bin\perl -wnle"print $]; split; print join '|', @_"
Use of implicit split to @_ is deprecated at -e line 1.
the quick brown foox
5.010001
the|quick|brown|foox
Terminating on signal SIGINT(2)
Terminating on signal SIGINT(2)

C:\test>perl -wnle"print $]; split; print join '|', @_"
Useless use of split in void context at -e line 1.
evry good boy deserves food
5.016001
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As you can see, in 5.8 and 5.10, split in a void context was deprecated, but it put its results into @_;

Somewhere between 5.10 and 5.16, the deprecation was enforced and that facility was removed. Which mean your golf script no longer works.

The @_ feature was removed in Perl 5.12, but was mistakenly omitted from the perl5120delta perldoc page. There's an errata towards the end of perl5140delta.

This Perl upgrade added three strokes to youreverybody's golf handicap, but in fairness the say feature from Perl 5.10 greatly improved our golfing experience, so we shouldn't be too upset.

update: didn't mean to imply that BrowserUk in particular was upset by this change.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

This Perl upgrade added three strokes to your golf handicap, but in fairness the say feature from Perl 5.10 greatly improved everybody's golfing experience, so we shouldn't be too upset.

There was nothing negative about my comnnents; just statements of fact.

Golf's fun, but about as important as cup holders to the function of a car :)

---

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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

For Perl up to and including 5.10, calling split in scalar or void context had the side-effect of setting @_. This mis-feature was removed in Perl 5.12. That was great news for most Perl programmers because this side-effect "feature" was unnecessary, an ugly wart. It was sad news for golfers though because side-effects are frequently useful in golf. In fact, I recently experienced a similar split annoyance in Compression in Golf: Part III, as described in the "Fun with split" section in that node.

Simply changing @_ to @z say should fix thospel's original solution at the cost of three strokes:

$_=$`.$_.$'.<>;@z=split//;${/[@z[map{$i-($i="@-")%9+$_,9*$_+$i%9,9*$_%
+26+$i-$i%27+$i%9-$i%3}0..8]]/o||do$0}for/0/||print..9
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