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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 (1,556 words) - 01:22, 19 November 2023
• 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 (549 words) - 04:40, 20 September 2023
• 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
• Solutions to worst move puzzles
  ...forms [[edge template IV2d]] with d1; B forms [[edge template II]] and a [[bridge]] to d1, and C forms [[edge template IV2h]] with f4. Now, consider what happens if Blue starts at B. After an optional bridge intrusion, Red must defend the upper left corner, and then Blue can get A, for exampl
  4 KB (808 words) - 03:31, 7 October 2023