According to Official Guinness Records,
On 10 August 2015, the US video walls solution company CineMassive crafted an epic game of Minesweeper that featured a playing board that measured 718 tiles x 262 tiles. In total there were 188,116 tiles infested with 38,799 mines to uncover and avoid. The game, dubbed "Minesweeper Super Challenge", was to be played across a wall of 24 linked HD TVs and was created to celebrate the game's 30th anniversary.The actual dimensions for the entire playing area was 246.84 inches wide x 92.96 inches high (approximately 20.57 feet wide x 7.75 feet high). The entire surface area was 22,946.24 in² (approximately 159.35 ft²).As of 27 October 2015, CineMassive was still finalising dates for the event.
For a complete list of 2015 records, please visit 2015 Guinness Records in United States.