Author: Zappa
Date: 21:09:57 06/29/05
Go up one level in this thread
On June 29, 2005 at 15:54:58, Richard Pijl wrote: >On June 29, 2005 at 15:52:19, Zappa wrote: > >>[Tough position. Zappa (like Shredder) plays Qa4. I would be very interested to >>see what the Baron says here (at low depths): >> >>[d]8/3nnkNp/4p1pP/1p2Pp2/2pP4/8/5PP1/1R4K1 b - - 0 1 >> > >As ordered (on a P4-2.4): > > ply time nodes score pv > 7(14)& 0:00.93 104869 +1.44 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Kf7-e7 Kd3-c2 > 7(14). 0:00.93 115558 +1.44 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Kf7-e7 Kd3-c2 > 8(16)& 0:01.37 217037 +1.54 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Kf7-e7 Kd3-c2 Nd7-b6 > 8(16). 0:01.59 279054 +1.54 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Kf7-e7 Kd3-c2 Nd7-b6 > 9(18)& 0:02.36 480127 +1.52 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b8 Kd3-c2 Nb8-c6 Rb1-d1 > 9(18). 0:02.69 554886 +1.52 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b8 Kd3-c2 Nb8-c6 Rb1-d1 > 10(19)& 0:04.83 1128032 +1.68 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b6 Kd3-c2 Nb6-c4 Rb1-a1 Nc4-a3 > Kc2-b3 > 10(19). 0:05.33 1256741 +1.68 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b6 Kd3-c2 Nb6-c4 Rb1-a1 Nc4-a3 > Kc2-b3 > 11(21)& 0:10.60 2636665 +1.63 c4-c3 Kg1-f1 Ne7-c6 d4-d5 e6xd5 > e5-e6 Kf7-e7 e6xd7 b5-b4 Ng7-e8 d5-d4 > Kf1-e2 f5-f4 Ke2-d3 (Ke7xd7) > 11(21). 0:11.31 2813840 +1.63 c4-c3 Kg1-f1 Ne7-c6 d4-d5 e6xd5 > e5-e6 Kf7-e7 e6xd7 b5-b4 Ng7-e8 d5-d4 > Kf1-e2 f5-f4 Ke2-d3 (Ke7xd7) > 12(23)& 0:24.55 6330156 +1.78 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b8 Kd3-c2 Nb8-c6 Rb1-d1 Nc6-a5 > Rd1-b1 Na5-c4 (Rb1-a1) (Nc4-a3) (Kc2-b3) >(Kf7-e7) > (f2-f3) > 12(23). 0:28.12 7258266 +1.78 c4-c3 Kg1-f1 Ne7-d5 Kf1-e2 b5-b4 > Ke2-d3 Nd7-b8 Kd3-c2 Nb8-c6 Rb1-d1 Nc6-a5 > Rd1-b1 Na5-c4 (Rb1-a1) (Nc4-a3) (Kc2-b3) >(Kf7-e7) > (f2-f3) > >Richard. Well, actually I was curious about it at depth 1-4 or so :) Zappa has trouble with the line: 1... Rxc3 2. Bxc3 Qxc3 3. Qxc3 Rxc3 4. Rfc1 Rc4 5. Rxc4 dxc4 6. Rc1 b5 7. a4 a6 8. axb5 axb5 9. Rb1 c3 10. Rxb5 c2 any and Black promotes in q-search. Since I don't do recaps this is a 20 ply line for me :) I was curious what your engine thought about white trying to take the pawn. I really don't Zappa to play Rxc3 until it realizes this line fails for white. I am pretty sure Qxc3 fails for white; the acid test for the combination is Qf4, which Zappa scores as a very slight plus for white (0.2 or so depending on depth). some lines: 1... Rc4xc3 2. Bd2xc3 Qc6xc3 3. Qg3-f4 Rc8-c4 4. Rf1-d1 Ne7-c6 5. Ra1-c1 Qc3-b3 6. g2-g4 Nd7xe5 7. g4xf5 g6xf5 8. Ng7xf5 (-0.03, 15) 1... Rc4xc3 2. Bd2xc3 Qc6xc3 3. Qg3-f4 Rc8-c4 4. Rf1-d1 Nd7-c5 5. Ra1-c1 Qc3-b3 6. Rc1-b1 Qb3xa3 7. f2-f3 Ne7-c6 8. Rb1-a1 Kf7-g8 (-0.31, 16) 1... b6-b5 2. Rf1-b1 a7-a6 3. Rb1-e1 Qc6-c7 4. Qg3-g5 Qc7-d8 5. Kg1-h1 Ne7-c6 6. Ng7xf5 g6xf5 7. Qg5-g7 Kf7-e8 8. Qg7xh7 Nd7-f8 9. Qh7-b7 (-0.09, 16) anthony
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