sudoku_test1 abc sudoku_test1: Processor: Intel Core i7-5500U @ 2.40GHz (1 Core), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 1024MB, Disk: 17GB VBOX HDD, Graphics: LLVMpipe, Audio: Intel 82801AA AC 97 Audio, Network: Intel 82540EM Gigabit OS: Ubuntu 15.10, Kernel: 4.2.0-35-generic (i686), Desktop: LXDE 0.8.1, Display Server: X Server 1.17.2, Display Driver: modesetting 1.17.2, OpenGL: 3.0 Mesa 11.0.2 Gallium 0.4, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 1024x768, System Layer: Oracle VirtualBox Sudokut 0.4 Total Time Seconds < Lower Is Better sudoku_test1 . 22.08 |=========================================================