La siguiente suma es correcta :
87 = 56 + 31
Siguiendo las mismas reglas , esta otra tambien lo es:
24 = 51 + 72
Explicalo.
Actualizacion : Solucion en comentarios , por Juan Luis Roldan
Categoría: Curiosidades
2 millones de dolares para quien resuelva este puzzle
La firma Bizak desarrolló el juego Eternity II, un puzzle de 256 piezas que admite miles de soluciones posibles y que se lanza este sábado. Hay tiempo para enviar respuestas hasta el 31 de diciembre de 2008. El premio será para el primero que mande una opción correcta.
La empresa británica de entretenimientos Bizak lanzará este sábado un concurso para promocionar su juego Eternity II, que ofrece para el ganador un premio de 2 millones de dólares.
El juego es una especie de rompecabezas de 256 piezas, cuyo objetivo es colocar todas las piezas en el tablero, de modo tal que los colores del borde de cada cuadro coincidan con los del borde del cuadro adyacente, y que en los bordes del tablero queden los espacios grises. Para practicar y aprender el mecanismo, el sitio web del juego ofrece una versión reducida, de sólo 16 piezas.
El premio será para el primero que halle una solución para el problema, que –a diferencia de otros acertijos– admite miles de resoluciones diferentes. La respuesta (un formulario con el dibujo del tablero, que viene con el juego o se puede descargar de la Web) debe ser enviada por correo postal a la dirección de la firma en Inglaterra, y hay tiempo para que lleguen hasta el mediodía británico del 31 de diciembre de 2008. Los sobres serán abiertos después de esa fecha en orden de llegada. El primero de ellos que se descubra como correcto será el ganador. Si no hay ganador, se abrirán dos nuevos plazos: 31 de diciembre de 2009 y la misma fecha de 2010.
Las bases del certamen establecen que puede participar cualquier persona mayor de 18 años, excepto los residentes en Holanda, Japón, Alemania, Austria, Italia y algunas regiones de Estados Unidos.
La versión anterior del juego fue lanzada en 1999 y el premio, de un millón de libras esterlinas, fue para un joven que logró resolver el problema en cinco meses.
Visto en Diario Clarin
Magia con un cuadrado magico
Todos conocemos los cuadrados magicos , y que tienen muchas propiedades de simetria que , enfocandolo de una manera ludica , puede llevarnos a sorprender a personas poco familiarizados con estos cuadrados ; bueno , tambien nos sorprenden a nosotros mismos , por supuesto , aunque sepamos que detras de ello hay un modelo matematico que lo explica perfectamente.
Tenemos una serie de naipes dispuestos segun la imagen de arriba (despues de lo anterior, ya sabemos que es un cuadrado magico , claro).
Pues bien , ahora elige 4 cartas , tal que no esten 2 de ellas en la misma fila ni en la misma columna , es decir , las 4 cartas deben estar en filas y columnas diferentes.
Suma los valores de las cartas elegidas. ( NOTA: AS=1 , J=10, Q=11)
Calcula a que hora corresponde , es decir , restale sucesivamente 12 , hasta que obtengas un numero menor o igual a 12.
Busca en el cuadro un naipe que coincida con esa hora.
Yo puse esa carta en este sobre
pulsa y comprueba si acerté.
Actualizacion: Habia un error en un par de cartas , que gracias a la observacion de un lector , ya hemos corregido.
Acertijo optico. otro ejercicio para tus ojos
Hace tiempo puse el post Ejercicio para tus ojos en el que habia que encontrar un caracter distinto entre varios similares. Fue uno de los post mas visitados , y como estamos en vacaciones y bajo el influjo de las reposiciones televisivas , os pongo algunas pruebas mas , distintas , claro está , una cosas es una reposicion y otra copiar el post.
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En los siguientes casos , no te digo la que debes encontrar , tienes que hacerlo por ti mismo 😉
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Y este ya para los que no tengan realmente nada que hacer….
Encuentra la q
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Para los graciosos…
Encuentra el punto final.
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