Author: K. Burcham
Date: 21:29:04 01/30/02
here is a line played by Deep Blue and Kasparov, in game two. (21.Qe2 Qd8 22.b4 Qc7 23.Rec1 c4 24.Ra3 Rec8 25.Rca1 Qd8 26.f4 Nf6) below you will find the logs for Deep Blue for move 24. and 25., also included is the target move 26.f4. notice the final search line in the log for move 24. in this line you will notice Deep Blue finds pf2f4, at depth 11(6). this is the move Deep Blue plays for move 26. If I read the logs correctly, Deep Blue starts "thinking", out of book when Kasparov plays 17...Ng6. clock at move 17. 113 minutes clock at move 25. 89 minutes so from the time Deep Blue started its search, until the time it found the f4 move 113-89=24 24 minutes. (of course we know it wasnt looking for this line with f4 the whole 24 minutes) that is 8 or 9 moves that Deep Blue played in this 24 minutes. however you choose to divide this time, lets just say we cut this time in half, and give your program 12 minutes to find f4. that should be fair. but really, most should start this test at night---and check it in the morning, or some check it when you come back from a two week vacation. some will find it, some wont. one program does real well. some see it but dont play it. one of the top programs wont play it at all. but it seems most all programs, if given enough time will find f4. how long does your favorite program take to find the line or move? kburcham harder test--looking for this line 24...Rec8 25.Rca1 Qd8 26.f4 etc.. [D] r3rbk1/2qb1ppn/p2p3p/1p1Pp3/PPp1P3/R1P1B1NP/2B1QPP1/2R3K1 b - - 10 1 easier test--looking for 26.f4 [D] r1rq1bk1/3b1ppn/p2p3p/1p1Pp3/PPp1P3/R1P1B1NP/2B1QPP1/R5K1 w - - 0 1 --------------------------------------- --> 24. Ra3 <-- 16/90:51 --------------------------------------- hash guess Re8c8,Guessing Rec8 8(4) #[Rca1](30)[Rca1](30) 30^ T=0 rc1a1 Qc7d8 pa4b5P Pa6b5p ra3a7 Ra8a7r be3a7R 8(6) #[Rca1](47)######################################## 47 T=2 rc1a1 Qc7d8 pa4b5P Pa6b5p ra3a7 Ra8a7r be3a7R 9(6) #[Rca1](47)######################################## 47 T=5 rc1a1 Qc7d8 pa4b5P Pa6b5p ra3a7 Ra8a7r be3a7R 10(6) #[Rca1](43)######################################## 43 T=35 rc1a1 Qc7d8 bc2d1 Bf8e7 qe2a2 Be7g5 11(6)<ch> 'rec8' #[Rca1](43)[TIMEOUT] 43 T=227 rc1a1 Qc7d8 pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P --------------------------------------- --> 25. Rca1 <-- 15/89:24 --------------------------------------- hash guess Qc7d8,Guessing Qd8 8(4) #[f4](30)[f4](30) 30^ T=0 pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P 8(6) #[f4](43)######################################### 43 T=2 pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P 9(6) #[f4](43)##<ch> 'qd8' [221 sec (main.c:1847)][cont]####################################### 43 T=33 pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P 10(6) #[f4](41)##################[Kh2](42)#######[Bd1](45)############### 45 T=119 bc2d1 Nh7f6 qe2a2 Ra8b8 pa4b5P Pa6b5p bd1f3 Pg7g6 11(6) #[Bd1](43)#[f4](46)[TIMEOUT] 46 T=234 pf2f4 Pe5f4p be3f4P Rc8b8 bf4e3 Bf8e7 pa4b5P Pa6b5p be3a7 Rb8b7 --------------------------------------- --> 26. f4 <-- 14/85:39
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