Edge template V1b - Revision history

Selinger: Added "see also", and some copy-editing.

2022-07-26T20:44:41Z

Added "see also", and some copy-editing.

Selinger: /* Continuation after 3rd row ladder */ Removed the details that have been moved to a new article.

2022-07-26T20:33:21Z

‎Continuation after 3rd row ladder: Removed the details that have been moved to a new article.

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Selinger: /* Intrusion at x */ minor copy-edits

2022-07-26T12:40:44Z

‎Intrusion at x: minor copy-edits

Selinger: /* Intrusion at v or y or z */ small typo

2022-07-26T12:30:03Z

‎Intrusion at v or y or z: small typo

Demer: /* Intrusion at x */ slightly shortened analysis for one case

2022-07-26T05:46:26Z

‎Intrusion at x: slightly shortened analysis for one case

Show changes

Demer: /* Continuation after 3rd row ladder */ combined three 1-diagram cases into one 2-diagram case

2022-07-26T04:26:04Z

‎Continuation after 3rd row ladder: combined three 1-diagram cases into one 2-diagram case

Selinger: /* Intrusion at w */ Completed the final case.

2022-07-25T23:27:44Z

‎Intrusion at w: Completed the final case.

Selinger: /* Intrusion at w */ Added several more cases.

2022-07-25T23:16:30Z

‎Intrusion at w: Added several more cases.

Selinger: Some copy-editing.

2022-07-25T21:32:50Z

Some copy-editing.

Demer: /* Intrusion at w */ did part of case w

2022-07-25T09:59:52Z

‎Intrusion at w: did part of case w

@@ Line 121: / Line 121: @@
 Now Red connects in essentially the same way as [[Tom's move]].
-Continuation:
+Specifically, Red has these threats:
-<div class="toccolours mw-collapsible  mw-collapsed">
-−
 Red has these threats:
 <hexboard size="6x14"
@@ Line 147: / Line 144: @@
     />
-The overlap in which Blue must play is:
+The overlap in which Blue [[mustplay region|must play]] is:
 <hexboard size="6x14"
@@ Line 178: / Line 175: @@
 Note that Red 4 connects to the bottom with [[Edge_template_IV2b|IV-2-b]].
-</div>
+== See also ==
 [[category:edge templates]]

@@ Line 368: / Line 368: @@
 If Blue plays one of the five upper-right of those cells
 <hexboard size="6x14"
     coords="hide"
@@ Line 375: / Line 374: @@
     contents="R e2 d4 d3 1:g3 3:e5 B c3 d5 e3 c5 2:e6 S blue:(f3 f2 g2 g4 f4)"
     />
 then Red still connects via [[Tom's move]],
-,  then Red still connects via [[Tom's move]],
 <hexboard size="6x14"
@@ Line 387: / Line 385: @@
 since at least two of the three cells marked "*" are still available to Red 1 to connect to Red's left group.
-This leaves only two
+This leaves only two remaining tries for Blue:
 <hexboard size="6x14"
@@ Line 395: / Line 393: @@
     contents="R e2 d4 d3 1:g3 3:e5 B c3 d5 e3 c5 2:e6 S e4 f5"
     />
 If Blue plays the right of those two,
@@ Line 420: / Line 416: @@
 Now, it does not matter which of the two shaded cells Blue 2 is at, since
-* if Blue plays the other too then the order in which they were played doesn't matter
+* if Blue plays the other too then the order in which they were played doesn't matter, and
-* and
+* if instead Red plays the other, then whichever one Blue played will be [[Dead cell|dead]].
 * if instead Red plays the other, then whichever one Blue played will be [[Dead cell|dead]]
-,  so this is equivalent to Red having a [[Theorems_about_templates#Corner_clipping|clipped]] version of [[Edge template IV1d]].
+So this is equivalent to Red having a [[Theorems_about_templates#Corner_clipping|clipped]] version of [[Edge template IV1d]].
 In particular, Red is connected down.

@@ Line 441: / Line 441: @@
     />
-This [[captured cell]]s the two cells marked "*", forcing Blue 4, and then Red 5
+This [[captured cell|captures]] the two cells marked "*", forcing Blue 4, and then Red 5
 <hexboard size="6x14"

@@ Line 193: / Line 193: @@
     />
 Red is connected by [[Tom's move]].
 ==== Intrusion at w ====
@@ Line 468: / Line 458: @@
 </div>
-==== Intrusion at y ====
+==== Intrusion at v or y or z ====
 <hexboard size="6x14"
@@ Line 474: / Line 466: @@
     edges="bottom"
     visible="area(f1,a6,n6,n4,l2,h1)"
-    contents="R e2 B e3 R d3 R 1:g3 R d4 B c5 B d5 B 2:f6 R 3:e5 E *:d6 *:e6 B 4:e4 R 5:f2"
+    contents="R e2 d4 d3 B c3 d5 e3 c5 R 1:g3 3:e5 E *:d6 *:e6 S blue:(f5 f6 g6)"
     />
-==== Intrusion at z ====
+This [[captured cell]]s the two cells marked "*", forcing Blue 4, and then Red 5
 <hexboard size="6x14"
@@ Line 484: / Line 475: @@
     edges="bottom"
     visible="area(f1,a6,n6,n4,l2,h1)"
-    contents="R e2 B e3 R d3 R 1:g3 R d4 B c5 B d5 B 2:g6 R 3:e5 E *:d6 *:e6 B 4:e4 R 5:f2"
+    contents="R e2 d4 d3 B c3 d5 e3 c5 R 1:g3 3:e5 5:f2 B 4:e4 E *:d6 *:e6 S blue:(f5 f6 g6)"
     />
-Note that the hexes marked "*" are [[captured cell|captured]] by Red 3, so Blue 4 is forced. Then Red is connected by [[Fourth_row_edge_templates#IV-2-q|edge template IV2p]].
 </div>

← Older revision		Revision as of 23:27, 25 July 2022
Line 319:		Line 319:
	/>		/>

		+	If Blue plays at f, then Red plays like this:

		+	<hexboard size="6x14"
		+	coords="hide"
		+	edges="bottom"
		+	visible="area(f1,a6,n6,n4,l2,h1)"
		+	contents="R e2 d4 d3 B c3 d5 e3 c5 R 1:g3 B 2:g5 R 3:i4 B 4:h4 R 5:f5 E *:(f2 e4) +:f4 S red:area(i4,g6,j6,j4)"
		+	/>

		+	Now Red threatens to play in one of the cells marked "*", and the only overlap (apart from the two [[captured cell]]s below 5) is at "+", so Blue must play there. Then Red responds like this:

		+	<hexboard size="6x14"
		+	coords="hide"
		+	edges="bottom"
		+	visible="area(f1,a6,n6,n4,l2,h1)"
		+	contents="R e2 d4 d3 B c3 d5 e3 c5 R 1:g3 B 2:g5 R 3:i4 B 4:h4 R 5:f5 B 6:f4 R 7:h2 E *:(g1 e4) +:(g4 i3) S red:area(i4,g6,j6,j4)"
		+	/>
		+
		+	Now Red is connected left by double threats "*" and right by double threats "+".

−	~~If Blue plays at f: <b>to be completed</b>~~
	</div>		</div>

@@ Line 263: / Line 263: @@
     visible="area(f1,a6,n6,n4,l2,h1)"
     contents="R e2 d4 d3 B c3 d5 e3 c5 R 1:g3 3:i4 5:e4 7:e5 9:f5 11:h3 B 2:g5 4:f3 6:e6 8:d6 10:f6 S red:area(i4,g6,j6,j4)"
     />
@@ Line 292: / Line 310: @@
     />
-If Blue plays at b, then Red
+If Blue plays at d or e, then Red plays like this:
-<b>to be completed</b>
+If Blue plays at f: <b>to be completed</b>
 </div>

@@ Line 206: / Line 206: @@
 ==== Intrusion at w ====
-To do.
+Red responds with
 ==== Intrusion at x ====