Das Ergebnis der Untersuchung von Robert Houdart:
Auf älterer Hardware ohne POPCNT Instruction ist die Stellungsbewertung gelegentlich inkorrekt, bei minimaler Auswirkung auf die Spielstärke.
Eine korrigierte Version wird in Kürze erscheinen.
Zitat:
The conclusions of the investigation.
The problem is real and occurs in the code paths without POPCNT instruction: in some cases an evaluation term can be computed incorrectly. The impact on strength should be minimal, but it was obviously not intended that the analysis results are different.
We will release a corrected Setup soon.
If you're using hardware with POPCNT instruction (Core i3, Core i5, Core i7, most Intel Xeons, AMD Phenom X6, AMD Bulldozer, AMD Opteron...) there will be no need to install the new Setup. Your current analysis results are correct and as intended.
If you're using older hardware without POPCNT we recommend that you install the correction. Don't expect any measurable change in strength, but your analysis results will be consistent and as intended.
Robert