AlphaGo played Fan Hui using 1202 CPUs and 176 GPUs.
It's strenght was assessed to be 3140 ELO on the scale used by www.goratings.org/ (BTW, this is different from the European ELO system)
That would put it at #279 in the world. Fan Hui is number 633 at 2916. AlphaGo's next opponent will be Lee Sedol, #5 at 3515.
The single computer version of AlphaGo is estimated to be 2890 ELO, which would be #679 in the world. It's is closer to what we might be playing against on our laptops and phones but still 48 CPUs and 8 GPUs.
Doing some arithmetic on that the increase in ELO score with number of processors seems to roughly match 60 points per doubling of computer speed suggested in Wikipedia's chess article[1]. As Sedol is 375 points ahead that would suggest they'd need about 80 times as many processors to equal him with current software. Maybe they'll improve the software. Or crank up a lot of machines.
AlphaGo played Fan Hui using 1202 CPUs and 176 GPUs.
It's strenght was assessed to be 3140 ELO on the scale used by www.goratings.org/ (BTW, this is different from the European ELO system)
That would put it at #279 in the world. Fan Hui is number 633 at 2916. AlphaGo's next opponent will be Lee Sedol, #5 at 3515.
The single computer version of AlphaGo is estimated to be 2890 ELO, which would be #679 in the world. It's is closer to what we might be playing against on our laptops and phones but still 48 CPUs and 8 GPUs.