Pnp-11Pnp-11 is the fourth member of the P.N.P. family designed as Pucks with a prime number of pieces.
Pnp-13Pnp-13 is the fifth member of the P.N.P. family designed as Pucks with a prime number of pieces.
Pnp-3Pnp-3 is the first member of the P.N.P. family designed as Pucks with a prime number of pieces.
Pnp-5Pnp-5 is the second member of the P.N.P. family designed as Pucks with a prime number of pieces.
Pnp-7Pnp-7 is the third member of the P.N.P. family designed as Pucks with a prime number of pieces.
Pocket TetrakiumFive intersecting circles rotatable in four steps with intersections deeper than usual.
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