The operation session which a good friend of mine and I are planning is approaching. It’s going to be a premiere in more than one aspect: we haven’t done joint operations for a long time; it’s also been a long time since we did some shunting; and we’re going to try and let children participate.

So the question stands: How can we combine interesting operations with as few rules as possible and as little preparations as possible? Enter *drumroll* the shunting dice.

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