Author: Dan Ellwein
Date: 06:42:43 10/06/03
Go up one level in this thread
On October 06, 2003 at 04:05:42, Johan de Koning wrote: >On October 05, 2003 at 13:33:04, John Merlino wrote: > >>On October 05, 2003 at 01:42:13, scott farrell wrote: >> >>>how do you interpret CM's ply notation? >>>what does 3/12 mean? > >Confusion galore when talking about search depths. >Therefore it's best not to interpret ply notation at all. :-) > >>The first number is the brute force depth, and the second number is the minimum >>extension depth. > >Personally (for the 12 in CM's 3/12) I prefer the term nominal depth. >It's comparable to other engines' nominal depth, because they're all nominal. >But that's where the comparison ends since "nominal" carries no meaning by >definition. Except for nominal D+1 being nominally deeper than nominal D of >course, assuming everything else being equal. > >... Johan on a humble 400 Mhz Celeron using CM9 personality - CMOffSet - I get this: Time Depth Score Positions Moves 1:16 1/9 0.94 2592906 1.gxh6 g6 2.h7+ Kh8 3.Bxe5+ Nxe5 4.Qxe5+ Qxe5 5.fxe5 dxe4 6.Re1 Rc4 7.Rf1 3:38 1/10 0.92 7837009 1.gxh6 g6 2.h7+ Kh8 3.Bxe5+ Nxe5 4.Qxe5+ Qxe5 5.fxe5 dxe4 6.Na5 Ba8 7.Rf1 Kg7 8.Nb3 12:06 1/11 0.92 26641393 1.gxh6 g6 2.h7+ Kh8 3.Bxe5+ Nxe5 4.Qxe5+ Qxe5 5.fxe5 dxe4 6.Re1 Rc4 7.Rf1 Bc8 8.Rg3 Be6 39:58 1/11 1.01 88447340 1.Rg1 exd4 2.gxh6 g6 3.Rxg6+ Kh8 4.Rg7 Qxf4 5.Rf3 Qh4 6.Qxh4 Bxh4 7.Rfxf7 3:26:23 1/12 2.29 461443484 1.Rg1 exd4 2.gxh6 g6 3.Rxg6+ Kh8 4.Rg7 Nd6 5.e5 Bf6 6.exd6 Rxd6 7.Rxf7 Qb6 -pilgrim
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