Unsafe
A position in a Game is unsafe for player 
if the person who plays next (player 
) can win. Every unsafe positioncan be made Safe by at least one move.
- Antigonal Points
- Antihomography
- Antihomologous Points
- Antilaplacian
- Antilinear Operator
- Antilogarithm
- Antimagic Graph
- Antimagic Square
- Antimorph
- Antimorphic Number
- Antinomy
- Antiparallel
- Antipedal Triangle
- Antipersistent Process
- Antipodal Map
- Antipodal Points
- Antipode
- Antiprism
- Antiquity
- Antisnowflake
- Antisquare Number
- Antisymmetric
- Antisymmetric Matrix
- Antisymmetric Relation
- Antisymmetric Tensor