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Subject: Re: Test Position (Nullmover without see)

Author: Michel Langeveld

Date: 03:35:38 12/11/04

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>setfen r3kb1r/pp1b2pp/2q1p3/3p4/3P4/2N5/PP4PP/R1BQ1RK1 w kq - 0 1
>sd 99
>go
>Min. time = 391 Max. time = 704
>ply   time     nodes  score  pv
>searching [-10000,10000]
> 1    0.00   -68 1 1.a4
> 1    0.00   -61 2 1.a3
> 1    0.00   -60 4 1.b3
> 1    0.00   -58 20 1.Be3
> 1    0.00   -44 22 1.Bg5
> 1    0.00   -34 33 1.Qf3
> 1*   0.00   -34 49 1.Qf3
>searching [-10000,10000]
> 2    0.00  -123 92 1.Qf3 o-o-o
> 2    0.00   -92 133 1.Bg5 Qc7
> 2    0.00   -77 548 1.Qh5+ Kd8 2.Qd1
> 2*   0.00   -77 610 1.Qh5+ Kd8 2.Qd1
>searching [-10000,10000]
> 3    0.02   -82 2256 1.Qh5+ g6 2.Qe5 Rg8 {141000}
> 3    0.02   -52 2517 1.Bg5 Qc7 2.Qf3 {157313}
> 3*   0.02   -52 2756 1.Bg5 Qc7 2.Qf3 {172250}
>searching [-10000,10000]
> 4    0.02   -93 4065 1.Bg5 Qb6 2.b3 Qc7 {254063}
> 4    0.02   -85 7611 1.Qh5+ Kd8 2.Qe2 Kc8 3.Qc2 {475688}
> 4*   0.03   -85 17341 1.Qh5+ Kd8 2.Qe2 Kc8 3.Qc2 {541906}
>searching [-10000,10000]
> 5    0.05   -76 25017 1.Qh5+ Kd8 2.Bg5+ Kc8 3.Rac1 Kb8 4.Qd1 {532277}
> 5    0.05   -75 29096 1.Bg5 Qb6 2.b3 Bd6 3.g3 {619064}
> 5*   0.09   -75 68879 1.Bg5 Qb6 2.b3 Bd6 3.g3 {732755}
>searching [-10000,10000]
> 6    0.14   -78 93000 1.Bg5 Qb6 2.Re1 Qxb2 3.Nxd5 Bd6 {659574}
> 6*   0.24   -78 182883 1.Bg5 Qb6 2.Re1 Qxb2 3.Nxd5 Bd6 {778226}
>searching [-10000,10000]
> 7    0.33   -61 257965 1.Bg5 Qb6 2.Kh1 Qxb2 3.Nxd5 exd5 4.Qe1+ Be7 {784088}
> 7    0.39   -59 316364 1.Qh5+ Kd8 2.Bg5+ Kc8 3.Rac1 Be8 4.Qe2 Kb8 5.Bf4+ Kc8 {8
>09115}
> 7*   0.41   -59 342610 1.Qh5+ Kd8 2.Bg5+ Kc8 3.Rac1 Be8 4.Qe2 Kb8 5.Bf4+ Kc8 {8
>41794}
>searching [-10000,10000]
> 8    0.95   -14 864308 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rac1 Kb6 4.Qe2 Qd6 5.Bf4 Qc6 {90
>5983}
> 8    1.20    11 1095259 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qh4+ Ke8 5.Qf4 {9096
>84}
> 8*   1.34    11 1272250 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qh4+ Ke8 5.Qf4 {9466
>15}
>searching [-10000,10000]
> 9    1.64    18 1542144 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 g6 4.Qe5 Raf8 5.Rae1 {93975
>9}
> 9*   2.13    18 2119878 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 g6 4.Qe5 Raf8 5.Rae1 {99759
>0}
>searching [-10000,10000]
>10    3.05    23 2985350 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Qg5+ Ke8 5.Qe5 Ke7 6
>.Qf4 {979767}
>10*   5.17    23 5150488 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Qg5+ Ke8 5.Qe5 Ke7 6
>.Qf4 {995841}
>searching [-10000,10000]
>11    6.34    23 6369381 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Qg5+ Ke8 5.Qe5 Ke7 6
>.Qf4 {1004001}
>11*  14.14    23 14556405 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Qg5+ Ke8 5.Qe5 Ke7
>6.Qf4 {1029376}
>searching [-10000,10000]
>12   19.45    32 19930050 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Rac1 Kd8 5.Qg5+ Ke8
> 6.Qe5 a5 7.Qf4 {1024471}
>12*  62.02    32 62889307 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qh5 Rag8 4.Rac1 Kd8 5.Qg5+ Ke8
> 6.Qe5 a5 7.Qf4 {1014082}
>searching [-10000,10000]
>13   91.92    69 93109992 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qg5+ {1012924}
>13  244.50   151 264215331 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 Be8 5.Qe2 a5 6.
>Nb5 Qd7 7.Rc7 Qxc7 8.Nxc7 {1080635}
>13* 332.33   151 358945327 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 Be8 5.Qe2 a5 6.
>Nb5 Qd7 7.Rc7 Qxc7 8.Nxc7 {1080090}

Here is a version without:
* SEE
* pruning loosing captures in QSearch
* without recapturing.

It finds quicker Qh5. So I am not too happy about this
It takes much longer to complete ply 13

setfen r3kb1r/pp1b2pp/2q1p3/3p4/3P4/2N5/PP4PP/R1BQ1RK1 w kq - 0 1
sd 99
go
Min. time = 391 Max. time = 704
ply   time     nodes  score  pv
searching [-10000,10000]
 1    0.02  -318 6 1.Rxf8+ Rxf8 {375}
 1    0.02  -297 12 1.Nxd5 {750}
 1    0.02   -73 19 1.a4 {1188}
 1    0.02   -66 29 1.a3 {1813}
 1    0.02   -65 49 1.Bd2 {3063}
 1    0.02   -63 52 1.Be3 {3250}
 1    0.02   -49 56 1.Bg5 {3500}
 1    0.02   -25 69 1.Qf3 {4313}
 1*   0.02   -25 101 1.Qf3 {6313}
searching [-50,0]
 2*   0.02   -50 969 {60563}
research 1 [-10000,10000]
 2    0.02  -104 1066 1.Qf3 o-o-o {66625}
 2    0.02   -97 1113 1.Bg5 Qc7 {69563}
 2    0.02   -74 1713 1.Qh5+ Kd8 2.Qf3 {107063}
 2*   0.02   -74 1846 1.Qh5+ Kd8 2.Qf3 {115375}
searching [-99,-49]
 3    0.02   -87 4605 1.Qh5+ g6 2.Qe5 Rg8 {287813}
 3*   0.02   -49 5015 1.Bg5 {313438}
research 1 [-10000,10000]
 3    0.02   -43 5601 1.Bg5 Qc7 2.Qf3 {350063}
 3*   0.02   -43 5846 1.Bg5 Qc7 2.Qf3 {365375}
searching [-68,-18]
 4*   0.05   -68 27624 {587745}
research 1 [-10000,10000]
 4    0.05   -91 28493 1.Bg5 Qb6 2.Qh5+ g6 3.Qf3 {606234}
 4    0.05   -79 33215 1.Qh5+ Kd8 2.Qe2 Kc8 3.Qc2 {706702}
 4*   0.06   -79 44025 1.Qh5+ Kd8 2.Qe2 Kc8 3.Qc2 {698810}
searching [-104,-54]
 5    0.08   -62 57841 1.Qh5+ g6 2.Qe5 Rg8 3.Bg5 Bb4 {741551}
 5*   0.14   -62 119416 1.Qh5+ g6 2.Qe5 Rg8 3.Bg5 Bb4 {846922}
searching [-87,-37]
 6    0.20   -46 194602 1.Qh5+ Kd8 2.Qe5 b6 3.Bh6 Rg8 4.Bf4 {958631}
 6*   0.27   -46 271236 1.Qh5+ Kd8 2.Qe5 b6 3.Bh6 Rg8 4.Bf4 {1019684}
searching [-71,-21]
 7    0.36   -34 401250 1.Qh5+ Kd8 2.Bg5+ Kc8 3.Rac1 g6 4.Qf3 Bg7 5.Nxd5 {111458
3}
 7*   0.39   -34 435394 1.Qh5+ Kd8 2.Bg5+ Kc8 3.Rac1 g6 4.Qf3 Bg7 5.Nxd5 {111354
0}
searching [-59,-9]
 8    0.72   -15 882509 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rac1 Kb6 4.Qd1 Ka6 5.Ne4 Qb6 {12
27412}
 8*   1.00    -9 1224819 1.Bg5 {1224819}
research 1 [-10000,10000]
 8    1.42     8 1688282 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qh4+ Ke8 5.Qf2 {1187
259}
 8*   1.61     8 1978805 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qh4+ Ke8 5.Qf2 {1229
071}
searching [-17,33]
 9    2.20    25 2713289 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qg5+ Kd6 5.Rac1 g6 {
1231634}
 9*   2.70    25 3405626 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rag8 4.Qg5+ Kd6 5.Rac1 g6 {
1259943}
searching [0,50]
10    3.72    46 4620133 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rhg8 4.Qh4+ Kd6 5.Rf7 Kc7 6
.Qxh7 {1242305}
10*   5.53    46 6986708 1.Bg5 Be7 2.Bxe7 Kxe7 3.Qg4 Rhg8 4.Qh4+ Kd6 5.Rf7 Kc7 6
.Qxh7 {1262962}
searching [21,71]
11   18.66    25 23968882 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rac1 Kb6 4.b3 Ka6 5.Qe2+ Ka5 6
.Bd2 Bb4 7.Ne4 Qb6 {1284713}
11*  24.19    25 30419890 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rac1 Kb6 4.b3 Ka6 5.Qe2+ Ka5 6
.Bd2 Bb4 7.Ne4 Qb6 {1257644}
searching [0,50]
12   61.34    37 80061706 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 Qc4 5.Nb5 Qd3 6.
Qf7 Bxb5 7.Qc7+ Ka6 8.axb5+ Kxb5 {1305127}
12*  88.06    37 113789227 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 Qc4 5.Nb5 Qd3 6
.Qf7 Bxb5 7.Qc7+ Ka6 8.axb5+ Kxb5 {1292134}
searching [12,62]
13* 101.56    62 129678149 1.Qh5+ {1276825}
research 1 [-10000,10000]
13  385.95   155 493313722 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 a6 5.Ne4 dxe4 6
.Rxc6+ Bxc6 7.a5+ Ka7 8.Qf7 h6 9.Rc1 {1278170}
13* 513.28   155 637619619 1.Qh5+ Kd8 2.Bg5+ Kc7 3.Rfc1 Kb6 4.a4 a6 5.Ne4 dxe4 6
.Rxc6+ Bxc6 7.a5+ Ka7 8.Qf7 h6 9.Rc1 {1242240}



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