Deep Position Analysis


 With deep position analysis Hiarcs Engine generates a detailed analysis tree for this position. You can determine how deep and broad the tree should be and what moves should be included or excluded from the analysis. Sure, you can select the time spent for each move and for the root position.  

Menu: Tools – Analysis – Deep position analysis

This function is used to analyse a specific position. It is very good for getting deep and detailed analysis of a critical position, and especially interesting for correspondence players.

With deep position analysis Fritz generates a detailed analysis tree for this position. You can determine how deep and broad the tree should be and what moves should be included or excluded from the analysis.

Time/depth: The precision of the analysis is determined by time available per move, or by the fixed calculation depth you allocate. Time per move is more flexible since it allows Fritz to go much deeper in certain positions (e.g. in the endgame).

Plus (root) allows you to add extra time or search depth to the root position, so that it is analysed more deeply than positions that occur in the search.

Branching: The branching factors for the 1st, 2nd and 3rd moves define how many alternative moves are given. The higher the values, the broader the analysis tree. However, Fritz may change the branching factor if it thinks the position merits that. This is dependent on the evaluation window described below. If there are moves present after the position these will always be considered.

Branching: White, Black, both determines whether alternatives should be given for one or both sides. Example: you want to show that in a certain position White is winning by force. Then you are not too interested in white alternatives and should set branching for Black only.

Length of variations: sets the length of analysed variations.

Evaluation window: This value, given in 100ths of a pawn, determines when Fritz will discard a variation. The value 80, for instance, means that moves which are 0.8 pawns worse than the best move will not be investigated any further, even if the branching factor would allow it.

At the end of deep position analysis Fritz will sort all the variations it has generated and make the strongest moves the main line. 

*Tip from chesskit is to use this function after clearly understanding each and every parameter that can be set. It is also useful to try with minimum time or minimum depth first to see the type of analysis produced before going ahead with actual time per move or depth. The total length of variation coupled with branching and time /  depth will determine the total duration of analysis. Getting greedy to get too much out of this without acknowledging the computer systems limitation of hardware will only result in an unpleasant crash!


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*TIP > Practice reading the analysis to imagine the position of all the pieces at the end of every single variation. If it is difficult, go below and practice one by one until all of them are fixed in the mind. Then come back here and verify if you can read the analysis and understand it again.

(1) deepos
Anand-Bologan
FIDE WCh KO New Delhi IND
Engine: Hiarcs 7.32

37.Bc2 

[37.Rf3 Re5 
       A) 38.h4 Bd7 39.Kh2 
                         (39.Bc2 Nb4 40.Qxf7 Bh3+ 41.Kxh3³) 
                                           39...Be8 40.Ng3 c2 41.Bxc2=; 
         B) 38.Ng3 38...f6 39.gxf6 
                                (39.h4 Bd7 40.gxf6 Ba4 41.fxg7+=) 
                                           39...g5 40.Qc1 g4 41.hxg4²; 
37.Qc1 Bd7 
         A) 38.Rf3 Ba4 39.Rh1 
                           (39.Qxb2 cxb2 40.Rd2 Rb8 41.Nc6µ) 
                                            39...Qxc1 40.Rxc1 Rc4 41.Nxg7µ; 
        B) 38.Nc6 38...Bxc6 39.Rxc3 
                                    (39.dxc6 Rxc6 40.Qxb2 cxb2 41.Rb3µ) 
                                            39...Qxc1 40.Rdxc1 Bxd5 41.Rxc7=] 
37...Nb4 38.Ba4 

 [38.Nb5 Rb7 39.Ba4 
                               (39.Rb1 Qxc2 40.Rxb4 Qd1 41.Rc4-+) 
                                             39...c2 40.Rc1 Bd7 41.Rb3=] 
38...Bd7 39.Bxd7 
                                     [39.Nf6 Bxa4 40.Nxe8 Bxe8 41.Rg1-+] 
39...Rxd7 40.Nf6 c2 41.Qf5± *

   











Position after:

(2) deepos1
FIDE WCh KO New Delhi IND

37.Bc2 Nb4 38.Ba4 Bd7 39.Bxd7 Rxd7 40.Nf6 c2 41.Qf5± *

Position after:

(3) deepos2
FIDE WCh KO New Delhi IND

37.Bc2 Nb4 38.Ba4 Bd7 39.Nf6 Bxa4 40.Nxe8 Bxe8 41.Rg1-+ *

Position after:

(4) deepos3
FIDE WCh KO New Delhi IND

37.Bc2 Nb4 38.Nb5 Rb7 39.Ba4 c2 40.Rc1 Bd7 41.Rb3= *

Position after:

(5) deepos4
FIDE WCh KO New Delhi IND

37.Bc2 Nb4 38.Nb5 Rb7 39.Rb1 Qxc2 40.Rxb4 Qd1 41.Rc4-+ *

Position after:

(6) deepos5
FIDE WCh KO New Delhi IND

37.Rf3 Re5 38.Ng3 f6 39.gxf6 g5 40.Qc1 g4 41.hxg4² *

Position after:

(7) deepos6
FIDE WCh KO New Delhi IND

37.Rf3 Re5 38.Ng3 f6 39.h4 Bd7 40.gxf6 Ba4 41.fxg7+= *

Position after:

(8) deepos7
FIDE WCh KO New Delhi IND

37.Rf3 Re5 38.h4 Bd7 39.Kh2 Be8 40.Ng3 c2 41.Bxc2= *

Position after:

(9) deepos8
FIDE WCh KO New Delhi IND

37.Rf3 Re5 38.h4 Bd7 39.Bc2 Nb4 40.Qxf7 Bh3+ 41.Kxh3³ *

Position after:

(10) deepos9
FIDE WCh KO New Delhi IND

37.Qc1 Bd7 38.Nc6 Bxc6 39.Rxc3 Qxc1 40.Rdxc1 Bxd5 41.Rxc7= *

Position after:

(11) deepos10
FIDE WCh KO New Delhi IND

37.Qc1 Bd7 38.Nc6 Bxc6 39.dxc6 Rxc6 40.Qxb2 cxb2 41.Rb3µ *

Position after:

(12) deepos11
FIDE WCh KO New Delhi IND

37.Qc1 Bd7 38.Rf3 Ba4 39.Rh1 Qxc1 40.Rxc1 Rc4 41.Nxg7µ *

Position after:

(13) deepos12
FIDE WCh KO New Delhi IND

37.Qc1 Bd7 38.Rf3 Ba4 39.Qxb2 cxb2 40.Rd2 Rb8 41.Nc6µ *



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