Ladder handling - Revision history

Selinger: /* Defending */ De-emphasize Tom's move, because ladder handling is a more basic tactic that most people learn before advanced tactics.

2024-05-09T02:07:52Z

‎Defending: De-emphasize Tom's move, because ladder handling is a more basic tactic that most people learn before advanced tactics.

Fjan2ej57w: /* Defending */

2024-05-07T21:12:09Z

‎Defending

Fjan2ej57w: /* Defending */

2024-05-07T21:10:55Z

‎Defending

Fjan2ej57w: /* Defending */

2024-05-07T21:09:13Z

‎Defending

Hexanna: add a couple cases

2023-05-07T01:43:55Z

add a couple cases

Selinger: Some copy-editing.

2023-01-08T00:44:00Z

Some copy-editing.

Selinger: Converted some diagrams to show only relevant board edges.

2023-01-08T00:36:14Z

Converted some diagrams to show only relevant board edges.

Selinger: highlight two defined terms

2022-08-02T01:35:21Z

highlight two defined terms

Selinger: momentum -> initiative

2022-04-26T23:00:50Z

momentum -> initiative

Selinger: /* Attacking */ Added "pivoting" as an alternative to "breaking"

2021-09-07T21:28:35Z

‎Attacking: Added "pivoting" as an alternative to "breaking"

@@ Line 30: / Line 30: @@
    />
-If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect when there isn't enough space on the right to play [[Tom's move]]. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
+If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect within the area shown here. (Whether Red can connect anyway depends on what is going on elsewhere on the board; for example, Red may have a nearby [[ladder escape]], may be able to [[climbing|climb]], or may have enough space to play [[Tom's move]]). It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
 Note that in case of a 2nd row ladder, Blue's only option is to push. For 3rd row ladders, Blue's options are to push or yield. For 4rd and higher row ladders, Blue has additional options; see [[Theory of ladder escapes]] for a more detailed analysis.

@@ Line 30: / Line 30: @@
    />
-If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect when there isn't enough space on the right to play Tom's move. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
+If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect when there isn't enough space on the right to play [[Tom's move]]. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
 Note that in case of a 2nd row ladder, Blue's only option is to push. For 3rd row ladders, Blue's options are to push or yield. For 4rd and higher row ladders, Blue has additional options; see [[Theory of ladder escapes]] for a more detailed analysis.

@@ Line 30: / Line 30: @@
    />
-If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect if there isn't enough space on the right for a Tom's move. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
+If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect when there isn't enough space on the right to play Tom's move. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
 Note that in case of a 2nd row ladder, Blue's only option is to push. For 3rd row ladders, Blue's options are to push or yield. For 4rd and higher row ladders, Blue has additional options; see [[Theory of ladder escapes]] for a more detailed analysis.

@@ Line 30: / Line 30: @@
    />
-If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
+If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect if there isn't enough space on the right for a Tom's move. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
 Note that in case of a 2nd row ladder, Blue's only option is to push. For 3rd row ladders, Blue's options are to push or yield. For 4rd and higher row ladders, Blue has additional options; see [[Theory of ladder escapes]] for a more detailed analysis.

← Older revision		Revision as of 01:43, 7 May 2023
Line 57:		Line 57:

	Red first jumps to (*). If Blue makes the standard response, Red's next move is (+), making a [[connection]] to the bottom via a [[trapezoid]] and a [[ziggurat]].		Red first jumps to (*). If Blue makes the standard response, Red's next move is (+), making a [[connection]] to the bottom via a [[trapezoid]] and a [[ziggurat]].
		+
		+	== Other options ==
		+
		+	* '''Jumping''' is also an option for the defender, where he allows the attacker to connect in exchange for important [[territory]]. This usually happens when the attacker already has a ladder escape and is sure to connect, but the defender wants to get the most compensation out of his position. The most common way to jump is on the same row as the attacker's ladder and skipping a hex:
		+
		+	<hexboard size="4x9"
		+	edges="bottom"
		+	coords="none"
		+	contents="R b2--d2 h3 B a3--c3 B 1:f2 R 2:d3"
		+	/>
		+
		+	* [[Cornering\|'''Cornering''']] is an option for the attacker when she doesn't have a ladder escape.

	== Examples ==		== Examples ==

@@ Line 11: / Line 11: @@
 == Defending ==
-The defender usually has two options: he can push or he can yield. The possibilities are shown in the following diagram:
+The defender usually has two options: he can push (a) or he can yield (b). The possibilities are shown in the following diagram:
 <hexboard size="4x8"
    edges="bottom"
    coords="none"
-   contents="R b2 c2 d2 e2 B a3 b3 c3 d3 E *:e3 *:e4"
+   contents="R b2 c2 d2 e2 B a3 b3 c3 d3 E a:e3 b:e4"
    />
@@ Line 22: / Line 22: @@
 * '''Yielding''' means to allow the attacker to get one row closer to the edge.
-It is usually best to continue pushing until the attacker does something else, but occasionally it is essential to yield in order to avoid one of Red's [[outpost]]s, as in the following diagram:
+It is usually best to continue pushing until the attacker does something else, but occasionally it is essential to yield in order to avoid one of Red's [[outpost]]s, as in the following situation:
 <hexboard size="4x9"
    edges="bottom"
    coords="none"
-   contents="R b2 c2 d2 e2 B a3 b3 c3 d3 f1 R g1 E *:e3 *:e4"
+   contents="R b2 c2 d2 e2 B a3 b3 c3 d3 f1 R g1 E a:e3 b:e4"
    />
-If Blue pushes in this diagram, Red will be able to connect to the bottom. If Blue yields instead, Red won't be able to. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have connected to the bottom.
+If Blue pushes in this diagram, Red will be able to connect to the bottom using [[edge template IV2b]]. If Blue yields instead, Red won't be able to connect. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have been able to connect to the bottom.
 Note that in case of a 2nd row ladder, Blue's only option is to push. For 3rd row ladders, Blue's options are to push or yield. For 4rd and higher row ladders, Blue has additional options; see [[Theory of ladder escapes]] for a more detailed analysis.
@@ Line 36: / Line 36: @@
 == Attacking ==
-Red usually has three options: she can push, break or jump. The possibilities are shown in the following diagram:
+Red usually has three options: she can push (a), jump (b), or pivot (c). The possibilities are shown in the following diagram:
 <hexboard size="5x10"
    edges="bottom"
    coords="none"
-   contents="R b3 c3 d3 B a4 b4 c4 d4 E *:e3 *:f3 *:f2"
+   contents="R b3 c3 d3 B a4 b4 c4 d4 E a:e3 b:f2 c:f3"
    />
 * '''Pushing''' means to continue with adjacent moves on the same row.
 * '''Jumping''' means to go one row further away from the edge. Note that jumping is a move similar (symmetric) to the defender´s yielding; however jumping is usually an offensive move, while yielding is very defensive, hence they have different words.
 Jumping is used when the attacker has a ladder escape but needs to get further from the edge to use it. Here is a standard example:
@@ Line 53: / Line 53: @@
    edges="bottom"
    coords="none"
-   contents="R b4 c5 d6 B a5 b5 c5 d5 R g1 h1 E *:f3 +:h3"
+   contents="R b4 c4 d4 B a5 b5 c5 d5 R g1 h1 E *:f3 +:h3"
    />
-Red first jumps to (*). If Blue makes the standard response, Red's next move is (+), making a [[connection]] to the bottom.
+Red first jumps to (*). If Blue makes the standard response, Red's next move is (+), making a [[connection]] to the bottom via a [[trapezoid]] and a [[ziggurat]].
 == Examples ==

@@ Line 1: / Line 1: @@
 In a [[ladder]] situation, the players have two different roles: The player who tries to connect to the edge is called the '''attacker''', and the player who tries to prevent the other from connecting is called the '''defender'''. Here is an example where Red is the attacker and Blue is the defender, with Blue to move.
-<hex>R4 C8 Vb2 Vc2 Vd2 Ve2 Ha3 Hb3 Hc3 Hd3</hex>
+<hexboard size="4x8"
 Generally the attacker has the [[initiative]]. The defender's moves are usually forced; he has to defend or else the attacker will connect.
@@ Line 9: / Line 13: @@
 The defender usually has two options: he can push or he can yield. The possibilities are shown in the following diagram:
-<hex>R4 C8 Vb2 Vc2 Vd2 Ve2 Ha3 Hb3 Hc3 Hd3 Se3 Se4</hex>
+<hexboard size="4x8"
 * '''Pushing''' means to play a move on the same row as the earlier moves.
@@ Line 16: / Line 24: @@
 It is usually best to continue pushing until the attacker does something else, but occasionally it is essential to yield in order to avoid one of Red's [[outpost]]s, as in the following diagram:
-<hex>R4 C9 Vb2 Vc2 Vd2 Ve2 Ha3 Hb3 Hc3 Hd3 Hf1 Vg1 Se3 Se4</hex>
+<hexboard size="4x9"
 If Blue pushes in this diagram, Red will be able to connect to the bottom. If Blue yields instead, Red won't be able to. It is important for Blue to yield at precisely the right moment. Had he done it one move earlier, Red would have connected to the bottom.
@@ Line 26: / Line 38: @@
 Red usually has three options: she can push, break or jump. The possibilities are shown in the following diagram:
-<hex>R5 C10 Vb3 Vc3 Vd3 Ha4 Hb4 Hc4 Hd4 Se3 Sf3 Sf2</hex>
+<hexboard size="5x10"
 * '''Pushing''' means to continue with adjacent moves on the same row.
@@ Line 34: / Line 50: @@
 Jumping is used when the attacker has a ladder escape but needs to get further from the edge to use it. Here is a standard example:
-<hex>R5 C10 Vb4 Vc4 Vd4 Ha5 Hb5 Hc5 Hd5 Vg1 Vh1 Sf3 Ph3</hex>
+<hexboard size="5x10"
 Red first jumps to (*). If Blue makes the standard response, Red's next move is (+), making a [[connection]] to the bottom.

← Older revision		Revision as of 01:35, 2 August 2022
Line 1:		Line 1:
−	In a [[ladder]] situation, the players have two different roles: The player who tries to connect to the edge is called the attacker, and the player who tries to prevent the other from connecting is called the defender. Here is an example where Red is the attacker and Blue is the defender, with Blue to move.	+	In a [[ladder]] situation, the players have two different roles: The player who tries to connect to the edge is called the '''attacker''', and the player who tries to prevent the other from connecting is called the '''defender'''. Here is an example where Red is the attacker and Blue is the defender, with Blue to move.

	<hex>R4 C8 Vb2 Vc2 Vd2 Ve2 Ha3 Hb3 Hc3 Hd3</hex>		<hex>R4 C8 Vb2 Vc2 Vd2 Ve2 Ha3 Hb3 Hc3 Hd3</hex>

@@ Line 29: / Line 29: @@
 * '''Pushing''' means to continue with adjacent moves on the same row.
-* '''Breaking''' means to play on the same row, but skipping one hex.
+* '''Pivoting''' or '''breaking''' means to play on the same row, but skipping one hex.
 * '''Jumping''' means to go one row further away from the edge. Note that jumping is a move similar (symmetric) to the defender´s yielding; however jumping is usually an offensive move, while yielding is very defensive, hence they have different words.