We know many Gamezebo fans have spent countless hours clicking away at "Minesweeper" over the years, that deliciously simple yet mind-frazzling game of deduction built into the Windows operating system.Well, it's about time someone took this game concept a step further - and MumboJumbo and Lobstersoft were the ones to take the plunge.The result is Gemsweeper, a highly-polished puzzler that is as fun as it is tough.