emeraldemon

3 or -1  

Position Values:

         0
      /    \
  13.5      -13.5
 /   \       /   \
26    1    -1    -26
     / \   / \
    3  -1 1   -3

This is a classic "double sente" position. It looks like 2 points double sente (i.e. from 1 to -1). In fact, playing the initial capture has a temperature of 13.5, but the block only has a temperature of 12.5, so the position is in fact gote: if there are other 13 point plays on the board, one player will capture the 2 stones, and the other will play elsewhere, until the temperature drops to 12.5. If the temperature is less than 12.5, it is in fact sente for both players. The thermograph looks something like this:

     |
     |
    / \
   |   |
   |   |
   |   |
   |   |
   |   |
   |   |
  /     \

There are 3 critical temperatures: at 13.5, the position becomes hot: both players want to play, but it's gote. At 12.5 it becomes "double sente", sente for both players. It stays that way until the temperature falls below 2, when it becomes gote again, when the position simplifies to {3 | -3}.