Difference between revisions of "Trapezoid"
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(add stars to make it clear which cells are included in the mouth) |
(Minor formatting; added "trapezoid" as alternate name for this template.) |
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| − | The '''mouth''' is a [[ | + | The '''mouth''' or '''trapezoid''' is a [[template]] with a wide base. It is one of the most common [[interior template]]s after the [[bridge]]. The [[carrier]] of the template, i.e., the set of cells that must be empty for the template to be valid, has been marked "*". |
<hex>R5 C5 | <hex>R5 C5 | ||
| − | + | ||
| − | + | Vc2 Vd2 | |
| − | + | Sb3 Sc3 Sd3 | |
| − | + | Vb4 Sc4 Vd4 | |
| − | + | ||
| + | </hex> | ||
== Common patterns == | == Common patterns == | ||
=== Gaining Ground === | === Gaining Ground === | ||
| − | The mouth can be used to [[ | + | The mouth can be used to steal [[territory]]. For example, in the following situation |
<hex>R6 C7 Ve2 Vf2 Hc4 Hd5</hex> | <hex>R6 C7 Ve2 Vf2 Hc4 Hd5</hex> | ||
| − | <hex>R6 C7 Ve2 Vf2 Hc4 Hd5 | + | Red can play as follows: |
| + | <hex>R6 C7 Ve2 Vf2 Hc4 Hd5 N:on Vd4 Hc5 Vf4</hex> | ||
=== Ladder Escapes === | === Ladder Escapes === | ||
| − | + | The mouth also allows some [[ladder escape]] constructions. | |
| − | <hex>R6 C10 Ve2 Vf2 | + | <hex>R6 C10 Ve2 Vf2 Vh4 Hg5 Hh5 N:on Vg4 Hf5 Vf4 He5 Vd4</hex> |
== Dominated cells == | == Dominated cells == | ||
Revision as of 13:12, 16 August 2020
The mouth or trapezoid is a template with a wide base. It is one of the most common interior templates after the bridge. The carrier of the template, i.e., the set of cells that must be empty for the template to be valid, has been marked "*".
Common patterns
Gaining Ground
The mouth can be used to steal territory. For example, in the following situation
Red can play as follows:
Ladder Escapes
The mouth also allows some ladder escape constructions.
Dominated cells
TODO:
Explain that some inner cells are dominated. See dead cell.
