Author: Vincent Diepeveen
Date: 16:00:45 08/10/00
Go up one level in this thread
On August 10, 2000 at 16:17:47, Christoph Fieberg wrote:
>Unbelievable, but true:
>I composed a position which is mate in 1 and can easily found, but Fritz6 on
>Pentium III, 500 Mhz and 32 MB Hash needs more than 1 hour to show it (excatly
>1:03:17)!!!
>How do other computers react?
What's this for ridicilous simple position, you gotta
be kidding: 2 nodes and 0.001 seconds is what DIEP needs at a
pentiumpro200 (my internet computer)
D I E P 2.00
black timeleft=27:46.40.00
- = - = - = - = ... 1 ...
= - = - = - = - ... 2 ...
o o o o o o o K ... 3 ...
N B B R = N R o ... 4 ...
n b b r q n r O ... 5 ...
O O O O O O O k ... 6 ...
- = - = - = - = ... 7 ...
Q - = - = - = - ... 8 ...
white timeleft=27:46.40.00
white to move type 'help' for command overview
anal
Analysis mode is on
process 0: engineflags = 0 denktime=10000000 maxtime=10000000
00:00 2 (0) 1 MATE01 Qa1-h1
00:00 311 (0) 2 MATE01 Qa1-h1
00:00 1376 (0) 3 MATE01 Qa1-h1
00:00 1638 (0) 4 MATE01 Qa1-h1
00:00 1900 (0) 5 MATE01 Qa1-h1
00:00 2162 (0) 6 MATE01 Qa1-h1
00:00 2207 (0) 7 MATE01 Qa1-h1
00:00 2252 (0) 8 MATE01 Qa1-h1
00:00 2297 (0) 9 MATE01 Qa1-h1
00:00 2342 (0) 10 MATE01 Qa1-h1
00:00 2387 (0) 11 MATE01 Qa1-h1
00:00 2432 (0) 12 MATE01 Qa1-h1
00:00 2477 (0) 13 MATE01 Qa1-h1
00:00 2522 (0) 14 MATE01 Qa1-h1
00:00 2567 (0) 15 MATE01 Qa1-h1
00:01 2612 (0) 16 MATE01 Qa1-h1
00:01 2657 (0) 17 MATE01 Qa1-h1
00:01 2702 (0) 18 MATE01 Qa1-h1
00:01 2747 (0) 19 MATE01 Qa1-h1
00:01 2792 (0) 20 MATE01 Qa1-h1
00:01 2837 (0) 21 MATE01 Qa1-h1
00:01 2882 (0) 22 MATE01 Qa1-h1
00:01 2927 (0) 23 MATE01 Qa1-h1
00:01 2972 (0) 24 MATE01 Qa1-h1
00:01 3017 (0) 25 MATE01 Qa1-h1
00:01 3062 (0) 26 MATE01 Qa1-h1
00:01 3107 (0) 27 MATE01 Qa1-h1
00:01 3152 (0) 28 MATE01 Qa1-h1
>The position is
>FEN: 8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - 0 1
>
>It is possible to reach this position from starting position:
>1.Sa3 Sa6 2.Sc4 Sc5 3.Sa5 Sa4 4.b3 b6 5.La3 La6 6.Lc5 Lc4 7.h4 h5 8.Th3 Th6
>9.Td3 Te6 10.Td5 Te4 11.Sh3 Sh6 12.e3 e6 13.Le2 Le7 14.Lf3 Lf6 15.d3 d6 16.Ke2
>Ke7 17.Dd2 Lc3 18.Te5 Lb4 19.Th1 Td4 20.Lc6 Dd7 21.Lb5 Th8 22.Td5 Kf6 23.Sg1 Sg4
>24.Th3 Se5 25.Tg3 Kf5 26.Tf3+ Kg4 27.Tf5 a6 28.g3 c6 29.Sf3 Kh3 30.Sg5+ Kh2
>31.Se4 Sg6 32.Kf3 Se5+ 33.Kf4 Sg6+ 34.Kg5 Se5 35.a3 Th6 36.c3 Tf6 37.De2 g6
>38.Kh6 Sg4+ 39.Kh7 De7 40.Tf4 Tf5 41.Sg5 Df6 42.Df3 De5 43.Kg8 De4 44.Sh3 Tg5
>45.Tf6 Sh6+ 46.Kh7 Sg4 47.Df5 Kg2 48.Kg7 Sh2 49.De5 Tg4 50.Sg5 Sf3 51.Sh7 Sg1
>52.Df4 [52.Tf5 Se2 53.Sf6 Sf4 54.Se8 Kh2 55.Tg5 Kg2 56.Kh7 Kh2 57.Sg7 Kg2 58.Sf5
>f6 59.f3 Kh2 60.Kh6 Kh3 Test it! What time do computers need to reach a certain
>search depths?] 52...Se2 53.Df3+ Kh2 54.Tff5 Sf4 55.Dd1 Kg2 56.Tg5 Kh2 57.Sf6
>Kg2 58.Sg8 Kh2 59.Se7 Kg2 60.Sf5 Kh2 61.Da1 Kg2 62.f3 f6 63.Kh6 Kh3 Mate in 1!
>(64. Dh1#). What time do different programms need to show it in the display? 1–0
>
>52.Tf5 leads to a position with White Queen on e5 (instead on a1).
>FEN: 8/8/pppppppK/NBBRQNRp/nbbrqnrP/PPPPPPPk/8/8 w - - 0 61
>
>How long do computers need to reach for example depth 9?
>Fritz 6 reached depth 5 after 9 hours!! (on Pentium III, 500 MHz, 32 MB Hash) He
>showed 61. Dxe4 Txe4 62. dxe4 Lxc5 3. Txg4 hxg4 as best moves (+1.56 for White).
>What is the best move?
>
>Christoph
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