v1.1.0

Bugfixes, major improvements and new features

New features:

• Add support for threefold repetition and 50 move rule draws (#28)
• Add support for PolyGlot opening books (#27)
• Overhaul evaluation (#25)
  • Add pawn structure evaluation
  • Add king safety evaluation
  • Add evaluation of rooks on open files
  • Add bishop pair evaluation
  • Clean up and optimize mobility evaluation
• Switch search algorithm to principal variation search (#25)
• Support more of the UCI protocol (#23)
  • Add support for UCI timers
  • Add support for go infinite
  • Add support for stop
• Greatly improve move ordering (#22)
  • Implement killer heuristic
  • Implement history heuristic

Improvements:

• Consider promotions in quiescence search (#30)
• Completely refactor and clean up attack generation code (#29)
• Make project buildable with LLVM and build with gcc and LLVM on Travis (#24)
• Obtain the principal variation from the transposition table, rather than using messy stack code (#22)

Bugfixes:

• Fix transposition table not overwriting old entries (#22)
• Fix incorrect MVV/LVA ordering (#22)
• Fix Zobrist keys incorrectly hashing castling rights

MinGW Windows binaries are attached for 32 and 64 bit systems
SHA256 sums:

20b6d355abe339422b7bd19c0982107c6e5567e00a648ddf13eb18f29cba12fb  shallowblue_x86-64.exe
11460e46b7554e087ab324ee69ea4b48a7608a17e59690b921f584fa54800a47  shallowblue_x86.exe