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• Common mistakes
  ...development game could be: d2, c3, d3, b5 and Red makes a double [[Bridge|bridge]], connecting c3 and c6. == Bad [[bridge intrusion]] ==
  2 KB (379 words) - 03:58, 18 December 2020
• Forcing move
  ...urn. Common forcing moves include playing in one of the empty hexes of a [[bridge]], intruding into an [[edge template]], or threatening to complete an immed ...bottom are connected to the bottom edge. These pieces are connected via [[bridge]]s to the group g3-g4-f5 which is in turn connected to the top edge via a [
  6 KB (1,139 words) - 15:33, 7 October 2023
• Bridge
  The '''bridge''', sometimes also called a 2-bridge, is an [[interior template]] with two stones. It is the equivalent of a dia The idea is that when the opponent [[Intrusion|intrudes]] in the bridge by moving in one of the empty hexes between the pieces, you simply move in
  784 B (127 words) - 01:08, 19 July 2022
• Intermediate (strategy guide)
  ...the '''loose connection''' — a [[Hex (board element)|hex]] that is a bridge plus an adjacent step away. The [[piece]]s of the loose connection [[threat]]en to connect via a bridge plus an adjacent step [[double threats|in two different ways]] — by p
  26 KB (4,694 words) - 01:56, 18 May 2022
• Foiling
  ...prevents an [[outpost]] from being used as a [[ladder escape]], and also [[Intrusion|intrudes]] on the outpost's [[connection]] to the [[edge]]. ...g example, a red 2nd row ladder is approaching from the left, and the blue bridge is ''ascending'' (relative to the direction of the ladder).
  6 KB (1,124 words) - 02:36, 8 January 2023
• Group
  ...ection, and when an opponent plays in one of these cells it is called an [[intrusion]]. The owner of the group must then make another move to restore the connec Examples of templates that can be used to form groups include the [[bridge]], [[box]], [[trapezoid]] and [[wheel]].
  1 KB (190 words) - 23:41, 14 February 2024
• Wheel
  ...on the rest of the board. It is therefore usually better for Blue not to [[Intrusion|intrude]]. ...position. The U-turn sometimes arises when a player tries to connect via [[bridge]]s and takes a sharp turn. The problem is that Blue can play at B, leaving
  3 KB (482 words) - 17:33, 18 April 2023
• Advanced (strategy guide)
  ...rs are unaware of it. If Blue intrudes anywhere but a or b, Red can just [[bridge]] to the edge. So the only possible intrusions are at a or b. ==== Solution to intrusion at a ====
  31 KB (5,861 words) - 00:58, 9 February 2022
• Solutions to puzzles
  ...ue responding at ''*'' [[Captured cell|captures]] those 6 cells. If Red [[Intrusion|intrudes]] at ''*'' ''before'' Red plays c2, then Blue responding at c2 sti ...mplate IV2g]], so Red must play either in there or e2. Against ''most'' [[Intrusion|intrusions]] in that template, Blue just responds with c3. Specifically, c3
  34 KB (6,464 words) - 23:41, 14 February 2024
• Strong connection
  .... Playing in the carrier of an opponent's virtual connection is called ''[[intrusion|intruding]]'' on the virtual connection. The simplest and most common example of a virtual connection is the [[bridge]].
  3 KB (517 words) - 15:25, 1 October 2023
• Edge template VI1a
  === Intrusion at a === Apart from intrusion into the bridge, which Red defends, Blue's only possible moves are at x and y. If Blue play
  8 KB (1,572 words) - 05:15, 10 May 2024
• Template VI1/Intrusion on the 3rd row
  ...s with a special case in the defense of [[edge template VI1a]], namely the intrusion on the 3rd that is not eliminated by [[sub-templates threat]]s. Apart from attacking the bridge, which Red defends, Blue's next move must be in the shaded blue area, or el
  3 KB (548 words) - 02:31, 9 May 2024
• Mustplay region
  ...e5, then Red is connected via two copies of [[edge template II]] and two [[bridge]]s, as shown: <hexboard size="7x7" * e4, connecting via [[bridge]]s and a [[ziggurat]]: <hexboard size="7x7"
  14 KB (2,723 words) - 01:16, 4 October 2023
• Template VI1/Other Intrusion on the 1st row
  ...in the defense of [[edge template VI1a]], namely the right-hand ('other') intrusion on the 1st that is not eliminated by [[sub-templates threat]]s. ...e + hexes but this is not quite true if Blue first "plays out" the secured bridge. But in this case Red definitely can acquire i6.
  5 KB (1,009 words) - 21:56, 20 June 2021
• Intrusion
  ...tion]] of the opponent. The most common kind of intrusion is a '''template intrusion''', which is a move inside the carrier of one of the opponent's [[templates ...t [[tenuki|declines]] to defend the template). Nevertheless, a well-played intrusion can be to the benefit of the intruding player. For example, the intruding p
  6 KB (1,101 words) - 21:03, 1 October 2023
• Reverse Hex
  The simplest example of a co-template is the [[bridge]]: ...ells elsewhere. At that point, if Blue takes one of the empty cells in the bridge, Red is forced to take the other.
  11 KB (1,957 words) - 15:22, 10 July 2022
• Theorems about templates
  ...least one of x and y by defending the [[bridge]]. No matter which way the bridge goes, the result is identical or better for Red than B. ...] response. In particular, if Red already has a 2nd row ladder escape, the intrusion is not even valid (it does not even threaten to disconnect Red).
  29 KB (4,992 words) - 05:51, 21 April 2024
• Bolstered template
  Many [[template]]s have one or more [[intrusion]] points of this shape: ...e cell "*" is the intrusion point in question; we call it an '''exposed''' intrusion point.
  5 KB (974 words) - 11:41, 6 May 2022
• Efficiency
  If Blue [[intrusion|intrudes]] on [[edge template II]], Red is usually well advised to respond ...additional 3 turns to defend the various [[bridge]]s if Blue chooses to [[intrusion|invade]] them). A more efficient way for Red to connect is to "fast forward
  7 KB (1,138 words) - 03:24, 1 December 2022
• Strategic advice from KataHex
  ===Common mistake: bad bridge peep=== ...lay at (*) as long as she thinks it's forcing enough for Red to defend his bridge.
  21 KB (3,605 words) - 16:08, 14 January 2024