Raphael 2.2 JA - new version chess engine

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Raphael is a hobby project that is still a work in progress, but it will be updated as time goes by. It is nowhere near as competitive as some of the other chess engines out there, but it is strong enough to beat most humans with ease. 
Author: Rei Meguro

Raphael 2.2.0 - what's new?

Non-functional changes
go now works with negative time (treats it as 1ms)
implemented tunable and debug builds
added softnode-related options to uci
v2.2
updated chess-library
removed max extension limit
removed skip search on stable pv
removed skip search on mate
implemented RFP
implemented NMP
fixed bug where history was using wrong parameters
simplified killers to single killer per ply
switched to incremental selection sort
implemented tt prefetching
implemented log formula lmr table
added transparent huge page support for linux
Performance

+296 STC against v2.1 (3035 estimated CCRL blitz)
+314 LTC against v2.1 (3005 estimated CCRL 40/15)

Jim Ablett compiles:

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