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Subject: Re: Some observation about Gambit Tiger 2.0

Author: Uri Blass

Date: 05:41:33 04/04/01

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On April 04, 2001 at 08:25:43, Uri Blass wrote:

>On April 04, 2001 at 05:44:44, Tony Werten wrote:
>
>>On April 03, 2001 at 07:38:13, Ferdinand S. Mosca wrote:
>>
>>>On April 03, 2001 at 07:33:32, Ferdinand S. Mosca wrote:
>>>
>>>>Hi,
>>>>
>>>>My first experience to watch the new Gambit Tiger 2.0 at play against
>>>>Yace in a 1 hr and 30 min game.
>>>>
>>>>Game 1:
>>>>Yace is better in the opening and manage to maintain a slight
>>>>positional advantage. Gambit Tiger 2.0 here is defeated in the ending
>>>>because of a weak pawn structure. I thought it is interested more on mobility
>>>>because even on ending where pawn structure is more important,
>>>>it still evaluates some positions as equal (pos 1). The patented king safety
>>>>of Gambit Tiger 2.0 is working here but you probably not noticed.
>>>>Try looking at the f7 square of how it is defended till end game?.
>>>>And also try examining how it watches the f2 and f7 (pos 2)
>>>>squares on many of its games, I thought this is one of the
>>>>points when considering a king safety for a castled position.
>>>>
>>>>Pos 1: Yace - Gambit Tiger 2.0 (g1) (1-0)
>>>>[D]8/5p2/4bp1k/p6P/p3PKPN/P7/2r5/R7 w - - 0 1
>>>>Yace played the strong 43. Rf1!
>>
>>XiniX says:
>>
>>ply:13/22 score:1,514 time:108 96Kn/s 1.Rf1 Kg7 2.Nf5+ Bxf5 3.Kxf5 Rc3 4.h6+
>>Kxh6 5.Kxf6 Rc6+ 6.Kxf7 Kg5 7.Rf5+ Kxg4 8.Rxa5
>>
>>>>
>>>>
>>>>Game 2:
>>>>Gambit Tiger 2.0 is better in the opening with many of its pieces
>>>>focusing on the castled king position of Yace. This is one of the
>>>>weakness of a French Defence, the kingside is very vulnerable to
>>>>attack, more when you played opposite the Gambit Tiger 2.0.
>>>>An illustrative game on conducting a kingside
>>>>assault is shown by Gambit Tiger 2.0.
>>>>
>>>>Pos 2: Gambit Tiger 2.0 - Yace (g2) (1-0)
>>>>[D]rr1q3k/pbp2p1p/1pnbpNpB/8/3P4/2PB1Q2/P1P2PPP/R3R1K1 w - - 0 1
>>>>Gambit Tiger 2.0 played the unexpected 20. Re4!!
>>
>>Maybe someone should check this one:
>>
>>ply:10/17 score:0,760 time:223 51Kn/s 1.Nxh7 Bxh2+ 2.Kxh2 Qh4+ 3.Kg1 Qxh6 4.Qxf7
>>Qxh7 5.Bxg6 Qxf7 6.Bxf7
>>ply:11/19 score:0,960 Nxh7 fail high
>>ply:11/20 score:1,319 time:531 50Kn/s 1.Nxh7 Qh4 2.Qf6+ Qxf6 3.Nxf6 Be7 4.Ne4
>>Rd8 5.Bf4 Rc8 6.Ng5
>>
>>
>>Tony
>
>Deep Fritz says that xinix simply did not search deep enough.
>
>Deep Fritz believes that Nxh7 is the bext move at depth 10 and 11 but not at
>depth 12.
>
>Bg5 is the best move for depth 12 and
>Be4 is the best move for depth 13
>
>Interesting to mention that Deep Fritz start searching from bad captures.
>Qxc6, Rxe6, Bxg6 are the first moves that it searches.
>
>New position
>rr1q3k/pbp2p1p/1pnbpNpB/8/3P4/2PB1Q2/P1P2PPP/R3R1K1 w - - 0 1
>
>Analysis by Deep Fritz:
>
>1.Qxc6--
>  -+  (-3.09)   Depth: 1/3   00:00:00
>1.Qxc6-- Bxc6
>  -+  (-5.59)   Depth: 1/3   00:00:00
>1.Rxe6!
>  -+  (-3.91)   Depth: 1/3   00:00:00
>1.Rxe6! fxe6
>  -+  (-3.44)   Depth: 1/3   00:00:00
>1.Bxg6!
>  -+  (-2.47)   Depth: 1/3   00:00:00
>1.Bxg6! hxg6
>  -+  (-2.22)   Depth: 1/3   00:00:00
>1.Nxh7!
>  -+  (-2.06)   Depth: 1/3   00:00:00
>1.Nxh7! Kxh7
>  ²  (0.53)   Depth: 1/6   00:00:00
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 b5 2.Bg5 Be7
>  ²  (0.69)   Depth: 4/18   00:00:00  3kN
>1.Be4 Na5 2.Bxb7 Nxb7 3.Bg5 Qf8
>  ²  (0.50)   Depth: 5/17   00:00:00  16kN
>1.Bg5!
>  ²  (0.53)   Depth: 5/17   00:00:00  21kN
>1.Bg5! Ne7 2.Qh3 h5 3.Rad1
>  ±  (0.78)   Depth: 5/17   00:00:00  27kN
>1.Bg5 Ne7 2.Qh3 h5 3.Rad1 c6
>  ±  (0.72)   Depth: 6/19   00:00:00  46kN
>1.Be4!
>  ±  (0.75)   Depth: 6/19   00:00:00  64kN
>1.Be4--
>  ²  (0.44)   Depth: 7/20   00:00:00  150kN
>1.Be4--
>  ²  (0.44)   Depth: 7/20   00:00:00  156kN
>1.Bg5!
>  ²  (0.47)   Depth: 7/20   00:00:00  181kN
>1.Bg5! Be7 2.Qf4 Kg7 3.Bh6+ Kh8 4.Nxh7 Kxh7 5.Qxf7+ Kh8
>  ²  (0.66)   Depth: 7/20   00:00:00  235kN
>1.Bg5 Be7 2.Be4 Na5 3.Qf4 Bxe4 4.Qh4 h5 5.Rxe4
>  ±  (0.81)   Depth: 8/23   00:00:01  522kN
>1.Bg5 Be7 2.Be4 Na5 3.Qf4 Bxe4 4.Qh4 h5 5.Rxe4
>  ±  (0.81)   Depth: 9/21   00:00:02  1335kN
>1.Bg5 Be7 2.Qf4 h5 3.Ne4 Kg7 4.Bxe7 Qxe7 5.Rad1 a6 6.Qe3
>  ±  (0.84)   Depth: 10/26   00:00:06  3698kN
>1.Nxh7!
>  ±  (0.88)   Depth: 10/28   00:00:09  5943kN
>1.Nxh7 Qh4 2.Qf6+ Qxf6 3.Nxf6 a6 4.Bg5 Kg7 5.Rad1 Rh8 6.f4 Bxf4
>  ±  (0.84)   Depth: 11/32   00:00:20  12706kN
>1.Nxh7 Qh4 2.Qf6+ Qxf6 3.Nxf6 a6 4.Rab1 b5 5.Be4 Be7 6.Nd7 Rd8
>  ±  (0.94)   Depth: 12/36   00:00:51  32875kN
>1.Bg5!
>  ±  (0.97)   Depth: 12/36   00:00:59  38299kN
>1.Bg5! h5 2.Ne4 Qf8 3.Nxd6 cxd6 4.Bf6+ Kg8 5.Qg3 Ne7 6.Qxd6 Nd5
>  ±  (1.22)   Depth: 12/36   00:01:30  58359kN
>1.Bg5 h5 2.Ne4 Qf8 3.Nxd6 cxd6 4.Bf6+ Kg8 5.Qg3 Ne7 6.Qxd6 Nd5
>  ±  (1.22)   Depth: 13/34   00:02:50  111926kN
>1.Be4!
>  ±  (1.25)   Depth: 13/34   00:03:53  153102kN
>1.Be4! Na5 2.d5 Qe7 3.Bg5 h5 4.dxe6 fxe6 5.Qd3 Bxe4
>  ±  (1.28)   Depth: 13/37   00:04:29  176849kN
>1.Be4 Na5 2.d5 a6 3.dxe6 Qe7 4.Bxb7 Nxb7 5.Nd7 Qh4 6.Nxb8 Rxb8
>  ±  (1.25)   Depth: 14/39   00:07:36  298458kN
>
>(blass, tel-aviv 04.04.2001)
>
>Uri

Deep fritz at depth 15:

1.Be4!
  +-  (1.56)   Depth: 15/41   00:20:09  794648kN
1.Bg5!
  +-  (1.59)   Depth: 15/41   00:23:34  925730kN

(blass, tel-aviv 04.04.2001)

It seems that there is more than one winning move in the relevant position
I decided to stop it at depth 15 and it did not solve the fail high for Bg5

[D]rr1q3k/pbp2p1p/1pnbpNpB/8/3P4/2PB1Q2/P1P2PPP/R3R1K1 w - - 0 1


Uri



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