I have computed them the same way as before for the engines I have:Ajedrecista wrote:Hello:
I bump this topic because I think that there could be interest in seeing how branching factors have evolved recently, specially in the new 'top 4' of Stockfish 8, Houdini 5, Komodo 10.2 and Shredder 13. There was a nice activity on this topic in the past and it could be good to bump this thread from time to time, just to keep track of the advances.
I would not do those tests in a reliable way, so this is why I ask more experienced people to do them. I do not pretend to sound cheeky.
Regards from Spain.
Ajedrecista.
Stockfish 8:
Ply:17 Positions: 30 Avg Nodes: 1512435 Branching = 1.56
Ply:18 Positions: 30 Avg Nodes: 2447825 Branching = 1.62
Ply:19 Positions: 30 Avg Nodes: 3595248 Branching = 1.47
Ply:20 Positions: 30 Avg Nodes: 5546744 Branching = 1.54
Ply:21 Positions: 30 Avg Nodes: 8360659 Branching = 1.51
Ply:22 Positions: 30 Avg Nodes:12264578 Branching = 1.47
Ply:23 Positions: 30 Avg Nodes:18146985 Branching = 1.48
Average EBF: 1.52
Komodo 10.2:
Ply:17 Positions: 30 Avg Nodes: 2890119 Branching = 1.48
Ply:18 Positions: 30 Avg Nodes: 4878235 Branching = 1.69
Ply:19 Positions: 30 Avg Nodes: 8182323 Branching = 1.68
Ply:20 Positions: 30 Avg Nodes:11910374 Branching = 1.46
Ply:21 Positions: 30 Avg Nodes:19221050 Branching = 1.61
Ply:22 Positions: 30 Avg Nodes:30120713 Branching = 1.57
Ply:23 Positions: 30 Avg Nodes:43578145 Branching = 1.45
Average EBF: 1.56
Shredder 13:
Ply:17 Positions: 30 Avg Nodes: 1682238 Branching = 1.44
Ply:18 Positions: 30 Avg Nodes: 2603995 Branching = 1.55
Ply:19 Positions: 30 Avg Nodes: 3714403 Branching = 1.43
Ply:20 Positions: 30 Avg Nodes: 6173892 Branching = 1.66
Ply:21 Positions: 30 Avg Nodes: 9233808 Branching = 1.50
Ply:22 Positions: 30 Avg Nodes:13925217 Branching = 1.51
Ply:23 Positions: 30 Avg Nodes:20753807 Branching = 1.49
Average EBF: 1.51
Andscacs 0.88:
Ply:16 Positions: 30 Avg Nodes: 2459230 Branching = 1.75
Ply:17 Positions: 30 Avg Nodes: 3535961 Branching = 1.44
Ply:18 Positions: 30 Avg Nodes: 5131742 Branching = 1.45
Ply:19 Positions: 30 Avg Nodes: 7992768 Branching = 1.56
Ply:20 Positions: 30 Avg Nodes:11477281 Branching = 1.44
Ply:21 Positions: 30 Avg Nodes:17255380 Branching = 1.50
Ply:22 Positions: 30 Avg Nodes:28672315 Branching = 1.66
Average EBF: 1.54
They all seem to clump around 1.53.