Arthur Macaspac defeated Day 3 leader Rockhill in Round 7 and apparently won in Round 8 (unless there was a cell-phone forfeit Monroi has that result wrong) to move within a half-point of the 1st place.
Pieta Garrett and Jhonel Baniel are now atop the standings with 6.5.
According to Monroi.com, Arthur Macaspac scored 1.5/2 yesterday and is now tied for 3rd place, a full point behind leader Nathaniel Rockhill and a half-point in back of Jhonel Baniel.
Macaspac appeared to have large winning advantage in the 4th round but I don't know what happened after 27.exd6. The replay (see R4-B2 below), scoresheet and original PGN crap-out with the illegal 33.Ke2 :-(
World Champion Viswanathan Anand retained his title by defeating challenger Veselin Topalov in today's 12th game.
Topalov opened with a Queen's Gambit and Anand, eschewing the Slav he used 3x in the match, varied with Lasker's Defense. Play followed a correspondence game until Black's 21st move and was balanced through move 30.
But Topalov's 31.exf5 was a mistake and his 32.fxe4 was a blunder.
A couple of weeks ago, just before the Anand-Toplaov match (now tied 5-5) began, I came across & downloaded a free chess engine, Firebird 1.2, that rivals Deep Rybka 3 in strength but may be a fishy knock-off.
While not being qualified to debate or moderate the clone claims, I can offer the following observations:
Firebird 1.2 is a "Deep" engine, able to use more than 1 processor.
It calculates considerably faster (30% or more) than Deep Rybka 3; which is a big plus when you are reviewing & annotating games.
Firebird loads effortlessly in ChessBase 10 whereas Rybka sometimes fails to.
The 2 engines recommended the same move just 43x out of 59 in the 1 game I tested (Tomkovich-Moldovan : GSCL 2010) & had differing evaluations + lines or play.