Difference between revisions of "Swap"

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(Where to swap)
(Size 7: update, 7x7 is solved)
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===Size 7===
 
===Size 7===
 
<hex>R7 C7 Va1 Vb1 Vc1 Vd1 Ve1 Vf1 Hg1
 
<hex>R7 C7 Va1 Vb1 Vc1 Vd1 Ve1 Vf1 Hg1
                        Hd2 He2 Hf2 Hg2
+
            Va2 Vb2 Hc2 Vd2 He2 Hf2 Hg2
                Hb3 Hc3 Hd3 He3 Hf3 Hg3
+
            Va3 Hb3 Hc3 Hd3 He3 Hf3 Vg3
 
               Ha4 Hb4 Hc4 Hd4 He4 Hf4 Hg4
 
               Ha4 Hb4 Hc4 Hd4 He4 Hf4 Hg4
               Ha5 Hb5 Hc5 Hd5 He5 Hf5
+
               Va5 Hb5 Hc5 Hd5 He5 Hf5 Vg5
                 Ha6 Hb6 Hc6 Hd6
+
                 Ha6 Hb6 Hc6 Vd6 He6 Vf6 Vg6
 
                 Ha7 Vb7 Vc7 Vd7 Ve7 Vf7 Vg7</hex>
 
                 Ha7 Vb7 Vc7 Vd7 Ve7 Vf7 Vg7</hex>
  

Revision as of 09:51, 27 April 2008

The rule

After Red played the first move Blue player is asked wether she wants to swap or not, that is to invert the colors or to keep on this way. Detailled article.

Where to swap

The use of the swap rule is to force the first player to play not too good moves. Therefore it is intersting to find out what are the moves that should be swapped (the best moves), what are moves that should not be swapped (the worse moves), what are the moves for which no answer is known yet.

On every size a1, b1 and symmetrical moves are known losing moves (except 2 x 2, where b1 wins, see small boards).

  • The red marked hexes are not to be swapped.
  • The blue marked hexes are to be swapped.
  • The star marked hexes are average moves, so the game should be balanced with or without swap.

Size 4

Size 5

Size 6

Size 7

Size 10

See also

Guideline for the 10x10, in the basic strategy guide.

External links

A faq about Hex

A more complete site with solution to sizes 7. Beware, the colors are inverted, vertical is blue there.