Difference between revisions of "Tips and tricks"

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<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>
 
<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>
  
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[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes. The double ladder escape and the only winning move is f4.
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[[Red (player)|Red]] to move. Can he [[win]]? The answer is yes: Red can win by using [[Tom's move]]!
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<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>
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[[Blue (player)|Blue]] can't play:  
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* d5 due to the [[threat]] at e3
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* e3 or e4 because then f4 is a [[ladder escape]] from the [[Second row|2nd line]].
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So the only move not losing ''yet'' is e5.
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<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>
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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.
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You can also check for yourself that the f4, g3 group is [[Connection|connected]] to the [[Bottom edge|bottom]].
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<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>
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[[category:strategy]]
 
[[category:strategy]]
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{{stub}}

Revision as of 22:59, 5 January 2009

Double ladder on 2nd line escape

Suppose we have this situation. There are two linked ladders here

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Red to move. Can he win? The answer is yes: Red can win by using Tom's move!

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