The Soma cube was invented by a Danish mathematician during a quantum mechanics lecture. Fitting, since it just might take a particle physicist to get it back together! Seven carefully cut pieces of w...details
Remember the stacking rings game for babies? This version will keep adults occupied for hours. Move the rings from the middle peg to either of the other two pegs, moving only one ring at a time and ne...details
Strike at this 3D wooden serpent cube puzzle if you dare... but don't be surprised if this devilishly difficult wooden puzzle turns and bites you back! Stretch it out and it stays in one piece. But ca...details
More likely to appear on a coffee table than the rock outcrops or brushy hillsides of its namesake, the King Snake is quite a tough puzzle. The 4x4x4 cube stretches into a long snake with only two pos...details
Can you sink the six panels in the box? Try not to get teed off... getting them all to lay flat is no easy task. It's pretty easy to get 4 of the 6 panels to fit. Sometimes you will get 5 of the 6 to ...details
The object of this puzzle is to free the ring. It's a bit mind-boggling, but it can be done. Doesn't look possible, but in only 3 moves... off it comes! An attractive and popular puzzle from the 1930s...details
"Don't Break the Bottle" locks a wine bottle with a seemingly simple knot and a wooden puzzle but it is maddeningly difficult to remove. Give someone a bottle of wine with this puzzle attached and wat...details
The One Ring... can you remove it at all? It's tricksy, this one. Untangle the ropes to free the ring from the tower. Once freed, can you put it back together? This precious piece of geometry begs to ...details
