func (b *Board) OnBoard(v core.Position) bool {
c := int(v.Column())
r := int(v.Row())
return c >= 0 && c < b.width && r >= 0 && r < b.height
}
func (b *Board) indexPos(v core.Position) int {
return b.index(v.Column(), v.Row())
}
func (b *Board) OnBoard(v core.Position) bool {
c := int(v.Column())
r := int(v.Row())
return c >= 0 && c < b.width && r >= 0 && r < b.height
}
func (b *Board) indexPos(v core.Position) int {
return b.index(v.Column(), v.Row())
}
