Sudoku nada sudokutest: Processor: Intel Core i5-5200U @ 2.70GHz (4 Cores), Motherboard: Acer EA50_HB, Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 1000GB Western Digital WD10JPVX-22J, Graphics: Intel Broadwell-U (900MHz), Audio: Intel Broadwell-U Audio, Network: Realtek RTL8111/8168/8411 + Qualcomm Atheros AR9462 Wireless OS: Ubuntu 16.04, Kernel: 4.4.0-45-generic (x86_64), Desktop: Xfce 4.12, Display Server: X Server 1.18.4, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 11.2.0, Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1366x768 Sudokut 0.4 Total Time Seconds < Lower Is Better sudokutest . 16.82 |===========================================================