Tips and tricks - Revision history

Selinger: More copy-edits.

2023-09-07T18:35:19Z

More copy-edits.

Selinger: Copy-editing.

2020-12-09T06:02:39Z

Copy-editing.

Nickname: Moved content from Beginner strategy

2017-03-21T05:43:48Z

Moved content from Beginner strategy

Halladba: removed redundunt content

2009-01-05T22:59:49Z

removed redundunt content

Halladba: added to cat. strategy

2008-01-31T23:32:06Z

added to cat. strategy

Turing: Copied/adapted page from http://hexwiki.tk

2005-02-09T07:19:27Z

Copied/adapted page from http://hexwiki.tk

New page

== [[Double ladder]] on [[Second row|2nd line]] [[Ladder escape|escape]] ==

Suppose we have this situation. There are two [[Double ladder|linked ladders]] here

<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Hh2, Hi2, Hi3</hex>

[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes. The double ladder escape and the only winning move is f4.

<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4, Hh2, Hi2, Hi3</hex>

[[Blue (player)|Blue]] can't play:

* d5 due to the [[threat]] at e3
* e3 or e4 because then f4 is a [[ladder escape]] from the [[Second row|2nd line]].

So the only move not losing ''yet'' is e5.

<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4 He5, Hh2, Hi2, Hi3</hex>

Now Red should play g3 (or d5, d6 first) and thus make a [[Multiple threats|double threat]]. Observe that one connection involves [[Hex (board element)|hexagons]] e4, d5, d6, and the other one e2, e3, f2, f3, g2; so they are separate from each other and Blue can't [[Blocking|stop]] them both with one move.
You can also check for yourself that the f4, g3 group is [[Connection|connected]] to the [[Bottom edge|bottom]].

<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4, He5, Vg3, Hh2, Hi2, Hi3</hex>

@@ Line 10: / Line 10: @@
 == How to block properly (by lazyplayer) ==
-If your blocking move has too little influence on both your edges, then the opponent has at least two good zones of the board that are worth trying, one for each side. For example, compare the situation for Blue in these two cases.
+If your blocking move has too little influence on both of your edges, then the opponent has at least two good board areas that are worth trying, one on each side. For example, compare the situation for Blue in these two cases.
 <hex>R11 C11 labels play numbered f6 e9 g8 f7 h6 h9 c9</hex>
-In this case, the Blue initial pieces (E9 and F7) have very little influence on both Blue's edges and thus don't provide any immediate threat on bottom. Blue has no choice but to play D8, which however is still far from being connected to any Blue's edge.
+In this case, the initial blue pieces (E9 and F7) have very little influence on both of Blue's edges and thus don't provide any immediate threat on the bottom. Blue has no choice but to play D8, which however is still far from being connected to either of Blue's edges.
 <hex>R11 C11 labels play numbered f6 f8 e8 f7 e7 d3</hex>
-This position on the other hand is quite more tricky for red to play correctly than the first. Blue is still too much focused (unavoidably, given the weak position) on bottom but, after having obtained a reasonable influence on the right side, he can now concentrate his efforts on the left side of the board.
+This position, on the other hand, is quite a bit more tricky for Red to play correctly. Blue is still too focused on the bottom (unavoidably, given the weak position), but after having obtained a reasonable amount of influence on the right side, he can now concentrate his efforts on the left side of the board.

@@ Line 1: / Line 1: @@
-== [[Double ladder]] on [[Second row|2nd line]] [[Ladder escape|escape]] ==
+== 2nd and 4th row [[parallel ladder]] [[Ladder escape|escape]] ==
-−
-Suppose we have this situation. There are two [[Double ladder|linked ladders]] here
 <hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Hh2, Hi2, Hi3</hex>
+[[Red (player)|Red]] to move. Can she [[win]]? The answer is yes: Red can win by using [[Tom's move]]!
-[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes: Red can win by using [[Tom's move]]!
 [[category:strategy]]
@@ Line 12: / Line 10: @@
 == How to block properly (by lazyplayer) ==
-If your blocking move has too little influence on both your edges, then the opponent has at least two good zones of the board that are worth trying, one for each side. For example, compare the situation for blue in these two cases.
+If your blocking move has too little influence on both your edges, then the opponent has at least two good zones of the board that are worth trying, one for each side. For example, compare the situation for Blue in these two cases.
 <hex>R11 C11 labels play numbered f6 e9 g8 f7 h6 h9 c9</hex>
-In this case, the blue initial pieces (E9 and F7) have very little influence on both blue's edges and thus don't provide any immediate threat on bottom. Blue has no choice but to play D8, which however is still far from being connected to any blue's edge.
+In this case, the Blue initial pieces (E9 and F7) have very little influence on both Blue's edges and thus don't provide any immediate threat on bottom. Blue has no choice but to play D8, which however is still far from being connected to any Blue's edge.
 <hex>R11 C11 labels play numbered f6 f8 e8 f7 e7 d3</hex>
 This position on the other hand is quite more tricky for red to play correctly than the first. Blue is still too much focused (unavoidably, given the weak position) on bottom but, after having obtained a reasonable influence on the right side, he can now concentrate his efforts on the left side of the board.

← Older revision		Revision as of 05:43, 21 March 2017
Line 9:		Line 9:
	[[category:strategy]]		[[category:strategy]]
	{{stub}}		{{stub}}
		+
		+	== How to block properly (by lazyplayer) ==
		+
		+	If your blocking move has too little influence on both your edges, then the opponent has at least two good zones of the board that are worth trying, one for each side. For example, compare the situation for blue in these two cases.
		+
		+	<hex>R11 C11 labels play numbered f6 e9 g8 f7 h6 h9 c9</hex>
		+
		+	In this case, the blue initial pieces (E9 and F7) have very little influence on both blue's edges and thus don't provide any immediate threat on bottom. Blue has no choice but to play D8, which however is still far from being connected to any blue's edge.
		+
		+	<hex>R11 C11 labels play numbered f6 f8 e8 f7 e7 d3</hex>
		+
		+	This position on the other hand is quite more tricky for red to play correctly than the first. Blue is still too much focused (unavoidably, given the weak position) on bottom but, after having obtained a reasonable influence on the right side, he can now concentrate his efforts on the left side of the board.

← Older revision		Revision as of 23:32, 31 January 2008
Line 22:		Line 22:

	<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4, He5, Vg3, Hh2, Hi2, Hi3</hex>		<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4, He5, Vg3, Hh2, Hi2, Hi3</hex>
		+
		+	[[category:strategy]]

@@ Line 5: / Line 5: @@
 <hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Hh2, Hi2, Hi3</hex>
-[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes. The double ladder escape and the only winning move is f4.
+[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes: Red can win by using [[Tom's move]]!
-−
-<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6,          Vf4, Hh2, Hi2, Hi3</hex>
-−
-[[Blue (player)|Blue]] can't play:
-−
-* d5 due to the [[threat]] at e3
-* e3 or e4 because then f4 is a [[ladder escape]] from the [[Second row|2nd line]].
-−
-So the only move not losing ''yet'' is e5.
-−
-<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6,          Vf4 He5, Hh2, Hi2, Hi3</hex>
-−
-Now Red should play g3 (or d5, d6 first) and thus make a [[Multiple threats|double threat]]. Observe that one connection involves [[Hex (board element)|hexagons]] e4, d5, d6, and the other one e2, e3, f2, f3, g2; so they are separate from each other and Blue can't [[Blocking|stop]] them both with one move.
-You can also check for yourself that the f4, g3 group is [[Connection|connected]] to the [[Bottom edge|bottom]].
-−
-<hex>R6, C9, Q1, Vb1, Vb2, Vb3, Vb4, Vb5, Vc3, Hi1, Ha6, Hb6, Hc1, Hc2, Hd2, He1, Hf1, Hg1, Hh1, Hc4, Vd3, Hd4, Vc5, Hc6, Vf4, He5, Vg3, Hh2, Hi2, Hi3</hex>
 [[category:strategy]]