Difference between revisions of "Edge template IV3b"
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Template IV3-b is a 4th row [[edge template]] with 3 stones. | Template IV3-b is a 4th row [[edge template]] with 3 stones. | ||
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="R c1 d1 e1 S d2" | |
| − | + | /> | |
The shaded cell is not part of the template and can be occupied by Blue. | The shaded cell is not part of the template and can be occupied by Blue. | ||
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way. | If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way. | ||
| − | ( | + | (mirror-image is from [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk]) |
== Defending the template == | == Defending the template == | ||
| Line 17: | Line 17: | ||
Red has this threat: | Red has this threat: | ||
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="E +:(a4 b2 b4 c2) R c1 d1 e1 b3 S d2" | |
| − | + | /> | |
| − | For trying to block the connection Blue has to play on the 5 | + | For trying to block the connection Blue has to play on the 5 cells used by that threat. |
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="E x:(b2 b3 a4) y:c2 z:b4 R c1 d1 e1 S d2" | |
| − | + | /> | |
If Blue moves in any of the 3 cells marked x, Red has the same response: | If Blue moves in any of the 3 cells marked x, Red has the same response: | ||
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="B 1:(b2 b3 a4) 3:c2 R c1 d1 e1 2:c3 4:e2 S d2" | |
| − | + | /> | |
Red 4 is connected to the bottom by [[Edge_template_III2e|template III2-e]]. | Red 4 is connected to the bottom by [[Edge_template_III2e|template III2-e]]. | ||
| Line 46: | Line 46: | ||
If Blue moves at y: | If Blue moves at y: | ||
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="B 1:c2 3:b2 5:d4 R c1 d1 e1 2:b3 4:e2 6:d3 S d2" | |
| − | + | /> | |
| − | Red | + | Red 2 is a [[Ladder escape|ladder escape]] for the ladder formed by Red 6. |
If Blue moves at z: | If Blue moves at z: | ||
| − | <hexboard size=" | + | <hexboard size="4x5" |
| − | + | coords="hide" | |
| − | + | edges="bottom" | |
| − | + | visible="-(a1 a2 a3 b1)" | |
| − | + | contents="B 1:b4 3:a4 R c1 d1 e1 2:b3 4:d3 E +:c3 +:e2 S d2" | |
| − | + | /> | |
| − | Red 4 is connected to the top by double threat at the two | + | Red 4 is connected to the top by double threat at the two cells marked "+". |
[[category:edge templates]] | [[category:edge templates]] | ||
Latest revision as of 06:50, 16 December 2020
Template IV3-b is a 4th row edge template with 3 stones.
The shaded cell is not part of the template and can be occupied by Blue.
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way.
(mirror-image is from www.drking.org.uk)
Defending the template
Red has this threat:
For trying to block the connection Blue has to play on the 5 cells used by that threat.
If Blue moves in any of the 3 cells marked x, Red has the same response:
Red 4 is connected to the bottom by template III2-e.
If Blue moves at y:
Red 2 is a ladder escape for the ladder formed by Red 6.
If Blue moves at z:
Red 4 is connected to the top by double threat at the two cells marked "+".
