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Created page with "'''Home * Evaluation * Pawn Structure * Pawn chain''' A '''Pawn chain''' consists of pawns placed on the same diagonal, without interruption, so that on..."
'''[[Main Page|Home]] * [[Evaluation]] * [[Pawn Structure]] * Pawn chain'''
A '''Pawn chain''' consists of pawns placed on the same diagonal, without interruption, so that only one of them is undefended. That pawn is called a base of pawn chain. The player opposing the pawn chain should attack its base or else strive to exchange pawns being parts of the chain. The old chess theory warned against attacking the peak of the chain, but some lines of the French defense show that this strategy is perfectly applicable.
<span id="ChainDirection"></span>
=Chain Direction=
As pointed out by [[Lyudmil Tsvetkov]], the direction of a [[Pawn Rams (Bitboards)|rammed pawn]] at least triple chain with its peak pretends the wing concerning piece attacks and [[King Safety|king safety]] issues <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52117&start=10 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014</ref>. In the left diagram, omitting pieces but assuming [[Middlegame|middlegame]], the black king should receive a penalty, in the [[Color Flipping|color flipped]] position on the right, the white king accordantly <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52117&start=24 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014</ref>:
{|
|-
| <fentt border="double" style="font-size:24pt">6k1/5p2/4p3/3pP3/2pP4/2P5/8/6K1</fentt>
| <fentt border="double" style="font-size:24pt">6k1/8/2p5/2Pp4/3Pp3/4P3/5P2/6K1</fentt>
|-
| 6k1/5p2/4p3/3pP3/2pP4/2P5/8/6K1 w - -
| 6k1/8/2p5/2Pp4/3Pp3/4P3/5P2/6K1 b - -
|}
Further, an [[Open Pawns (Bitboards)|open]] [[Backward Pawn|backward]] [[Backward Pawns (Bitboards)#Straggler|straggler]] is a [[Weak Pawns|weak]] base of the chain.
=See also=
* [[Connectivity]]
* [[Pawn Pattern and Properties]] of the [[Bitboards]] pages
: [[Defended Pawns (Bitboards)#DefendedDefenders|Defended Defenders]] inner pawns of a at least triple-chain
: [[Defended Pawns (Bitboards)#NotDefendedDefenders|Not Defended Defenders]] the base of a chain
: [[Defended Pawns (Bitboards)#NotDefendingDefended|Not Defending Defended]] the peak of a chain
* [[Space]]
=Forum Posts=
==2014==
* [http://www.talkchess.com/forum/viewtopic.php?t=51012 5 underestimated evaluation rules] by [[Lyudmil Tsvetkov]], [[CCC]], January 23, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Stockfish]]
: [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=10 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014
: [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=24 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014
==2015==
* [http://www.talkchess.com/forum/viewtopic.php?t=55272 LCP] by [[Lyudmil Tsvetkov]], [[CCC]], February 09, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55399 pointy chains redux (part 1)] by [[Carl Langan]], [[CCC]], February 20, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55462 Longer chain pawn again] by [[Lyudmil Tsvetkov]], [[CCC]], February 25, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55477 pattern coding in bitboards] by [[Pawel Koziol]], [[CCC]], February 26, 2015 » [[Defended Pawns (Bitboards)#DefendedDefenders|Defended Defenders]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56206 Chain, duo, connected] by [[Lyudmil Tsvetkov]], [[CCC]], May 02, 2015
=External Links=
* [https://en.wikipedia.org/wiki/Pawn_structure#d5_chain The d5 chain from Wikipedia]
* [https://en.wikipedia.org/wiki/Pawn_structure#e5_chain The e5 chain from Wikipedia]
=References=
<references/>
'''[[Pawn Structure|Up one Level]]'''
A '''Pawn chain''' consists of pawns placed on the same diagonal, without interruption, so that only one of them is undefended. That pawn is called a base of pawn chain. The player opposing the pawn chain should attack its base or else strive to exchange pawns being parts of the chain. The old chess theory warned against attacking the peak of the chain, but some lines of the French defense show that this strategy is perfectly applicable.
<span id="ChainDirection"></span>
=Chain Direction=
As pointed out by [[Lyudmil Tsvetkov]], the direction of a [[Pawn Rams (Bitboards)|rammed pawn]] at least triple chain with its peak pretends the wing concerning piece attacks and [[King Safety|king safety]] issues <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52117&start=10 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014</ref>. In the left diagram, omitting pieces but assuming [[Middlegame|middlegame]], the black king should receive a penalty, in the [[Color Flipping|color flipped]] position on the right, the white king accordantly <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52117&start=24 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014</ref>:
{|
|-
| <fentt border="double" style="font-size:24pt">6k1/5p2/4p3/3pP3/2pP4/2P5/8/6K1</fentt>
| <fentt border="double" style="font-size:24pt">6k1/8/2p5/2Pp4/3Pp3/4P3/5P2/6K1</fentt>
|-
| 6k1/5p2/4p3/3pP3/2pP4/2P5/8/6K1 w - -
| 6k1/8/2p5/2Pp4/3Pp3/4P3/5P2/6K1 b - -
|}
Further, an [[Open Pawns (Bitboards)|open]] [[Backward Pawn|backward]] [[Backward Pawns (Bitboards)#Straggler|straggler]] is a [[Weak Pawns|weak]] base of the chain.
=See also=
* [[Connectivity]]
* [[Pawn Pattern and Properties]] of the [[Bitboards]] pages
: [[Defended Pawns (Bitboards)#DefendedDefenders|Defended Defenders]] inner pawns of a at least triple-chain
: [[Defended Pawns (Bitboards)#NotDefendedDefenders|Not Defended Defenders]] the base of a chain
: [[Defended Pawns (Bitboards)#NotDefendingDefended|Not Defending Defended]] the peak of a chain
* [[Space]]
=Forum Posts=
==2014==
* [http://www.talkchess.com/forum/viewtopic.php?t=51012 5 underestimated evaluation rules] by [[Lyudmil Tsvetkov]], [[CCC]], January 23, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Stockfish]]
: [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=10 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014
: [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=24 Re: Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 26, 2014
==2015==
* [http://www.talkchess.com/forum/viewtopic.php?t=55272 LCP] by [[Lyudmil Tsvetkov]], [[CCC]], February 09, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55399 pointy chains redux (part 1)] by [[Carl Langan]], [[CCC]], February 20, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55462 Longer chain pawn again] by [[Lyudmil Tsvetkov]], [[CCC]], February 25, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55477 pattern coding in bitboards] by [[Pawel Koziol]], [[CCC]], February 26, 2015 » [[Defended Pawns (Bitboards)#DefendedDefenders|Defended Defenders]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56206 Chain, duo, connected] by [[Lyudmil Tsvetkov]], [[CCC]], May 02, 2015
=External Links=
* [https://en.wikipedia.org/wiki/Pawn_structure#d5_chain The d5 chain from Wikipedia]
* [https://en.wikipedia.org/wiki/Pawn_structure#e5_chain The e5 chain from Wikipedia]
=References=
<references/>
'''[[Pawn Structure|Up one Level]]'''
