# Sokoban undo patch

**URL:** <https://www.ruby-forum.com/t/sokoban-undo-patch/73054>\
**Category:** Ruby-Gnome 2\
**Created:** [October 20, 2006, 9:37pm UTC](https://www.ruby-forum.com/t/sokoban-undo-patch/73054 "2006-10-20T21:37:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dmitri\_P](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ecd19e/32.png) [@Dmitri\_P](https://www.ruby-forum.com/u/Dmitri_P)\
**Post date:** [October 20, 2006, 9:37pm UTC](https://www.ruby-forum.com/t/sokoban-undo-patch/73054/1 "2006-10-20T21:37:18Z")

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Hi.

Dear Gnome2-Ruby developers. I downloaded your sokoban game from your  
site and gave it to my son  
to play with, however luck of unlimited undo is a bit of a problem for 5  
year old kid. I fixed it  
and tought you might be interested to include these changes in your  
code. The patch for  
adding unlimited undo to sokoban.rb is attached. Please let me know what  
you think.

---

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**Author:** ![Dmitri\_P](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ecd19e/32.png) [@Dmitri\_P](https://www.ruby-forum.com/u/Dmitri_P)\
**Post date:** [October 22, 2006, 4:15pm UTC](https://www.ruby-forum.com/t/sokoban-undo-patch/73054/2 "2006-10-22T16:15:39Z")

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Hi,

Thanks. Applied.  
I didn’t think the sample was used in the real world :-).

On Fri, 20 Oct 2006 12:35:08 -0700  
Dmitri P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> –  
> Dmitri P.

## –

.:% Masao M.[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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