Author: Mike Byrne
Date: 19:45:59 08/29/02
Go up one level in this thread
>[D] 2rqkb2/5p1p/p1npb1r1/1p1Np3/4Pp2/N2B4/PPP2PPP/R2Q1R1K w - -
>===========================================================================
>
>Force analysis on 16. c4?
>
>
>White(1): search c4
>White(1): go
> time surplus 0.00 time limit 100:00 (100:00)
> nss depth time score variation (1)
> 5 0.00 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 5-> 0.00 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 6 0.00 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 6-> 0.00 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 7 0.02 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 7-> 0.02 -0.32 1. c4 Qg5 2. g3 fxg3 <HT>
> 8 0.95 -- 1. c4
> 8 1.05 -0.69 1. c4 Qh4 2. cxb5 Rh6 3. Nf6+ Kd8 4.
> h3 f3 5. bxc6 fxg2+ 6. Kxg2 Bxh3+ 7.
> Kg1 Bxf1
> 8-> 1.05 -0.69 1. c4 Qh4 2. cxb5 Rh6 3. Nf6+ Kd8 4.
> h3 f3 5. bxc6 fxg2+ 6. Kxg2 Bxh3+ 7.
> Kg1 Bxf1
> 9 3.03 -- 1. c4
> 9 10.80 -1.55 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> 9-> 10.80 -1.55 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> 10 14.49 -1.54 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> b4
> 10-> 14.49 -1.54 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> b4
> 11 23.28 -1.49 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> fxg3 8. hxg3
> 11-> 23.28 -1.49 1. c4 Qh4 2. g3 Qh3 3. Qf3 Rh6 4. Qg2
> Qxg2+ 5. Kxg2 Bh3+ 6. Kg1 Bxf1 7. Rxf1
> fxg3 8. hxg3
> 12 39.97 -- 1. c4
> 12 2:46 -2.00 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
> Qh5 5. Nb6 Bf3 6. Nxc8 fxg3 7. fxg3
> Bxg2+ 8. Kxg2
> 12-> 2:46 -2.00 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
> Qh5 5. Nb6 Bf3 6. Nxc8 fxg3 7. fxg3
> Bxg2+ 8. Kxg2
>
>===========================================================================
>
>so after only 2 minutes on a micro search, maybe 1M nps, Crafty SE 17.16 sees
>16. c4 is not looking so well ...the DB prototype. seeing 3-5M nps did not see
>this coming?
further analysis on 16. c4:
13 3:37 -- 1. c4
13 18:45 -2.55 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
Qh5 5. f3 Bh3 6. Qe2 Bxf1 7. Rxf1 Rxg3
8. cxb5
13-> 18:45 -2.55 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
Qh5 5. f3 Bh3 6. Qe2 Bxf1 7. Rxf1 Rxg3
8. cxb5
14 22:40 -2.65 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
Qh5 5. f3 Bh3 6. Qe2 Bxf1 7. Rxf1 Nd4
8. g4 Nxe2 9. gxh5
14-> 22:40 -2.65 1. c4 Qh4 2. g3 Qh3 3. Qf3 Bg4 4. Qg2
Qh5 5. f3 Bh3 6. Qe2 Bxf1 7. Rxf1 Nd4
Mike
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