Author: Arturo Ochoa
Date: 09:23:35 02/27/01
Go up one level in this thread
On February 26, 2001 at 21:34:07, Sune Larsson wrote:
>
> [D]8/7b/8/8/1N5p/1pp5/7Q/k1K5 w - - 0 1
>
>
> It was late one night in the smoky, old club house. Master Paradox was
> blitzing as white against the stubborn Mr.Doubt. In highest time pressure
> Master Paradox played 1.Qa2+ and hissed out: "Mate". "Hah, this is no mate.
> I just take it!", Mr Doubt yelled and played his 1.-bxa2. "I said mate",
> replied Master Paradox with rugged voice - lifted his knight and placed it
> with a thud on c6 (2.Nc6). Mr Doubt stared at the position. Naturally he
> couldn't believe his own eyes...shuffled up the pieces and left the room
> without a word.
>
> True? Not really ;) This position is from Keres. White, a queen up, faces
> the unpleasant ...b2+. The only way to bring it home is the paradoxical
> 1.Qa2+! After 1.-bxa2 2.Nc6! black is helpless against the threat 3.Nd4
> with mate on b3(c2). A true beauty!
>
> Test: This position should be solvable since there is a forced mate.
>
> Sune
Thinking....
+---+---+---+---+---+---+---+---+ -
8 | | | | | | | | |
+---+---+---+---+---+---+---+---+ 00:00:00 00:00:00
7 | | | | | | | | *B|
+---+---+---+---+---+---+---+---+
6 | | | | | | | | | Time infinite
+---+---+---+---+---+---+---+---+ Hash 200 Mb
5 | | | | | | | | | Engine Rebel Century 3.0
+---+---+---+---+---+---+---+---+ Personality Rebel Century 3
4 | | N | | | | | | *p| anti-GM Off
+---+---+---+---+---+---+---+---+ Tactics Off
3 | | *p| *p| | | | | | Bluff Chess Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | | | | | | | | Q | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | *K| | K | | | | | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
8/7b/8/8/1N5p/1pp5/7Q/k1K5 w - -
[Event "Computer Chess Test Suite"]
[Site "EPD2diag V1.5"]
[Date "2001.02.27"]
[Round "?"]
[White ""]
[Black ""]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[FEN "8/7b/8/8/1N5p/1pp5/7Q/k1K5 w - - 0 1"]
1.*
00:00:00 1.03 4.05 1.Qxh4
00:00:00 2.00 -3.11 1.Qxh4 b2+ 2.Kd1 b1=Q+ 3.Ke2
00:00:00 2.06 -0.39 1.Nd3 Bxd3
00:00:01 2.21 0.77 1.Nc2+ Bxc2 2.Qxh4 b2+ 3.Kxc2 b1=Q+
4.Kxc3 (0)
00:00:01 3.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nxa2 Kxa2 5.Kd1 h3 6.Kc1 (1)
00:00:01 4.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nxa2 Kxa2 5.Kd1 h3 6.Kc1 (1)
00:00:01 5.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nxa2 Kxa2 5.Kd1 h3 6.Kc1 (1)
00:00:01 6.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nxa2 Kxa2 5.Kd1 h3 6.Kc1 (1)
00:00:01 7.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nd5 Be4 5.Nxc3 Bf5 6.Nxa2 Kxa2
7.Kd2 Kb2 8.Ke3 (1)
00:00:02 8.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nd5 Be4 5.Nxc3 Bf5 6.Nxa2 Kxa2
7.Kd2 Kb2 8.Ke3 (1)
00:00:03 9.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nc6 Bc2 5.Nd4 Ba4 6.Nb3 Bxb3 (2)
00:00:05 10.00 0.00 1.Nc2+ Ka2 2.Nb4 Ka1 3.Qa2 bxa2
4.Nc6 Bc2 5.Nd4 Ba4 6.Nb3 Bxb3 (3)
00:00:06 10.12 0.00 1.Qa2+
00:00:06 10.12 0.00 1.Qa2+
00:00:06 10.12 Mate in 5 moves 1.Qa2+ bxa2 2.Nc6 Bc2 3.Kxc2 h3
4.Nd4 h2 5.Nb3 (6)
Positions : 2.622.992
Nodes per second : 437.165
Extensions (checks) : 354.057 (13%)
Extensions (captures) : 8.210 (0%)
Extensions (king safety) : 301 (0%)
Extensions (on depth) : 0 (0%)
Extensions (remaining) : 4.865 (0%)
Extensions (total) : 367.433 (14%)
Hash Table : 320.355 238.255 (1%)
Average depth : 17
Deepest depth : 41
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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