Author: Uri Blass
Date: 13:49:14 11/30/02
Go up one level in this thread
On November 30, 2002 at 16:15:08, Scott Gasch wrote: >On November 29, 2002 at 22:34:40, scott farrell wrote: > >>On November 29, 2002 at 21:12:55, Scott Gasch wrote: >> >>>On November 29, 2002 at 17:22:20, Will Singleton wrote: >>> >>>>2rr3k/1p4p1/1P2b2p/p1Bnpp1q/8/Q1P2PP1/P6P/RB3RK1 b - - 0 26 >>>> >>>>Solution times (amd 1.6ghz): >>>> >>>>Yace not in 5 min >>>>Crafty not in 5 min >>>>Aristarch 3:48 min >>>>Gromit 3:12 min >>>>Ruffian 44 sec >>>>CM9000 5 sec >>>> >>> >>>Monsoon fails high in 2:16 and resolves a PV in 4:27. >>> >>> 1u +0.35 00:00:00.02 11 PV= a4 <+0.00> >>> 1u +1.35 00:00:00.05 57 PV= Nf4 <+0.00> >>> 1. +1.35 00:00:00.08 77 PV= Nf4 <+0.00> >>> 2- +0.57 00:00:00.13 190 **FL** -- >>> 2u -0.47 00:00:00.14 302 PV= Ra8 1. Bd3 <+0.00> >>> 2u -0.36 00:00:00.15 380 PV= Rc6 1. Qxa5 <-1.00> >>> 2u -0.10 00:00:00.16 448 PV= Nf6 1. Qxa5 <-1.00> >>> 2. -0.10 00:00:00.21 508 PV= Nf6 1. Qxa5 <-1.00> >>> 3. +0.59 00:00:00.27 1635 PV= Nf6 1. Qxa5 e4 <-1.00> >>> 4u +0.64 00:00:00.31 6748 PV= Rc6 1. Bd3 Nxb6 2. Bxb6 Rxb6 [Q] >>> > 3. Qxa5 [Q] <+0.00> >>> 4. +0.64 00:00:00.38 9055 PV= Rc6 1. Bd3 Nxb6 2. Bxb6 Rxb6 [Q] >>> > 3. Qxa5 [Q] <+0.00> >>> 5+ +1.40 00:00:00.47 22433 Nf6! ++ >>> 5. +1.49 00:00:00.63 42341 PV= Nf6 1. Bd6 Bc4 2. Re1 Qxf3 3. Bxe5 >>> > [Q] <+0.00> >>> 6. +1.52 00:00:00.93 90963 PV= Nf6 1. Bd6 e4 2. fxe4 fxe4 3. Bc2 >>> > <+0.00> >>> 7. +1.77 00:00:01.49 209895 PV= Nf6 1. Bc2 Rd2 2. Rf2 Rxf2 3. Bxf2 >>> > Qxf3 4. Qxa5 [Q] <+0.00> >>> 8. +1.77 00:00:03.82 698640 PV= Nf6 1. Bc2 Rd2 2. Rf2 Rxf2 3. Bxf2 >>> > Qxf3 4. Qxa5 <+0.00> >>> 9+ +2.52 00:00:05.36 994464 Nf6! ++ >>> 9. +2.71 00:00:08.69 1812429 PV= Nf6 1. Bd6 Bc4 2. Rf2 e4 3. g4 Nxg4 >>> > 4. fxg4 Qxg4+ [+] 5. Bg3 Rd1+ >>> > [Q] 6. Kg2 [Q] <-1.00> >>>10. +3.02 00:00:26.78 5824368 PV= Nf6 1. Bd6 Bc4 2. Rf2 e4 3. Bc2 >>> > e3 4. Rg2 Qxf3 5. Re1 <+1.00> >>>11+ +3.77 00:02:16.62 28726569 Nf4! ++ >>>11. +5.19 00:04:27.40 58248289 PV= Nf4 1. gxf4 Rd2 2. Bf2 [threat] >>> > Qxf3 3. Qxa5 Bd5 4. Qxd5 [threat] >>> > Qxd5 5. Bxf5 Rf8 6. c4 Qxc4 [Q] >>> > <+3.00> >> >>How do you guys get this sort of output? >> >>My engine doesnt report the final move Nf4 until it has fully analysed that >>move, and hence already has the PV. > >After a complete search of all moves in the root position to (at least) 10 ply >depth monsoon's PV started with Nf6 (and it printed the 10. line). > >Now we begin checking every move in the root position to at least depth 11. The >first move analized, of course, is the PV move from last search depth -- Nf6. >The next move monsoon analized was Nf4. This move caused a root fail high of >the aspiration window and caused the 11+ line to be output. The engine has >fully analized the Nf6 move at this point but because it caused a root fail high >the aspiration window must be adjusted and the entire position researched with >the new window. In that case it is normal to analyze again Nf6 with a bigger window in order to get an exaqct score. Even if you choose not to do it you can give a pv of one move Nf6 at depth 11 before you give a pv of Nf4. Uri
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