Stockfish 4 has been released. You can download at http://stockfishchess.org/ or browse the sources at https://github.com/mcostalba/Stockfish Diffs from last version is: 43 files changed, 1534 insertions(+), 1703 deletions(-) So 169 lines of code less but should be quite stronger than version 3. For interested people here is the breakdown of lines count. Language files blank comment code C++ 20 2110 1619 5772 C/C++ Header 21 636 570 1558 SUM: 41 2746 2189 7330
