Difference between revisions of "Ladder escape template"
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| − | A | + | A '''ladder escape template''' is a [[pattern]] which can be used as a [[ladder escape]], that is a way of connecting a [[ladder]] to an [[edge]]. For example a stone on a second row will escape a second row ladder. Let's see this in action. |
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| + | <hexboard size="2x8" | ||
| + | coords="hide" | ||
| + | contents="R a1 R 2:b1 R 4:c1 R 6:d1 R 8:e1 R h1 B 1:a2 B 3:b2 B 5:c2 B 7:d2 B 9:e2" | ||
| + | /> | ||
| + | |||
| + | When red's ladder reaches the second row stone on the right, red will be able to connect to the bottom edge, as follows: | ||
| + | <hexboard size="2x8" | ||
| + | coords="hide" | ||
| + | contents="R a1 R b1 R c1 R d1 R e1 R 1:f1 R 3:g1 R h1 B a2 B b2 B c2 B d2 B e2 B 2:f2" | ||
| + | /> | ||
| + | |||
| + | Edge templates can often be used as ladder escape templates and most of the examples below will look familiar to people who know their edge templates. | ||
| + | |||
| + | There is a technical page on [[proving that a pattern is a ladder escape]]; this is not necessary for beginners, who just need to recognise basic ladder escapes and how to use them. | ||
Below, '''*''' stands for template carrier, '''+''' stands for projected ladder path. | Below, '''*''' stands for template carrier, '''+''' stands for projected ladder path. | ||
Revision as of 22:11, 20 May 2016
A ladder escape template is a pattern which can be used as a ladder escape, that is a way of connecting a ladder to an edge. For example a stone on a second row will escape a second row ladder. Let's see this in action.
When red's ladder reaches the second row stone on the right, red will be able to connect to the bottom edge, as follows:
Edge templates can often be used as ladder escape templates and most of the examples below will look familiar to people who know their edge templates.
There is a technical page on proving that a pattern is a ladder escape; this is not necessary for beginners, who just need to recognise basic ladder escapes and how to use them.
Below, * stands for template carrier, + stands for projected ladder path.
Contents
Row-2 ladders
All of the common edge templates are valid. For instance:
Template II
Template IVa
Row-3 ladders
Templates II, IIIa, and IVa are valid.
Row-4 ladders
Template IIIa
Template IIIa is valid.
Template IVa
Also template IVa is valid if you can double bridge to the escape piece as follows.
Red can jump ahead to the escape template by playing at the marked cell.
