Author: Gian-Carlo Pascutto
Date: 03:47:34 08/22/02
Some excerpts from the logfiles: 7(5) #[e6](6)############################## 6 T=2 Pe7e6 bc1b2 Nb8d7 ph2h3 Bg4f5 8(6) #[e6](9)############################## 9 T=6 Pe7e6 nf3e5 Ng8h6 bc1b2 Bg4e2p bf1e2B 7(5) #[e5](21)####################################### 21 T=2 Pe6e5 pe3e4 Ph7h6 pg3g4 8(6) #[e5](13)####################################### 13 T=5 Pe6e5 pe3e4 Ph7h6 qd1e2 Rf8e8 pa2a4 7(4)#[Rfe8](-12)#############################[b5](-11)#[Qb6](13)################## 13 T=3 Qa5b6 pe3e4 Bh5f3n nd2f3B Qb6f2p rf1f2Q Bd6g3p bb2f6N 8(6) #[Qb6](-17)[Qb6](-17) -17v T=3 Qa5b6 pe3e4 Bh5f3n nd2f3B Qb6f2p rf1f2Q Bd6g3p bb2f6N 8(6) #[Qb6](-18)###############[Bxf3](-8)#############[e5](-6)#################[Rae8](-5) -5 T=11 Ra8e8 pc2c4 Pe6e5 pd3d4 Pb7b6 pb3b4 Qa5a4 7(5) #[Qc5](0)############################################## 0 T=2 Qa5c5 pg3g4 Bh5g6 nh4g6B Pf7g6n 8(6) #[Qc5](-30)[Qc5](-30) -30v T=3 Qa5c5 pg3g4 Bh5g6 nh4g6B Pf7g6n qe1d1 Pe6e5 If you claim that Deep Blue's nominal depth is the sum of the two numbers, then in all of these cases it is bumping up it's nominal search depth by 2 ply, which makes little sense. i.e. it's going from 12 to 14 ply. And in all cases, there is no explosion in search time for this '2 ply jump'. That does not make sense - it only does when you take the first number as the nominal ply depth and the second number as the part of that that was done by the hardware searches. -- GCP
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