It is somewhat shocking to me how many "brilliancies" have been proven unsound after looking at them with a computer. I set the following postion up to see if engines could find the Queen sacrifice 15.Qxg6. It appears now after having a few engines look at it, that the sac is unsound, however the engines did uncork the beautiful 15.Be6!! instead.
This one should be easy for most engines.
[d] 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ -
Test Position: Malinin vs Savinov, Leningrad 1988
Moderator: Ras
-
acase
- Posts: 994
- Joined: Wed Mar 15, 2006 1:14 am
- Location: Columbus, Ohio USA
- Full name: Andrew R Case
-
GARGAMEL
- Posts: 111
- Joined: Tue Dec 29, 2009 9:55 am
- Location: AUSTRIA
Re: Test Position: Malinin vs Savinov, Leningrad 1988
Hallo Andrew
Nice position, but no problem for Deep Fritz 10!!
Malinin,V - Savinov,V, Leningrad-ch sf (Analyse) , Le6
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Deep Fritz 10:
1.Sxd5 Txb2 2.Dd1 Txe2+
+- (1.76) Tiefe: 1/6 00:00:00 0kN
=/+ (-0.29) Tiefe: 3/14 00:00:00 2kN
1.Ld2 Sb4 2.Dd1 Lb7 3.Lf4 Lxf3 4.exf3 Se5 5.Lxe5 Lxe5 6.f4 Lf6 7.Lg2 c4 8.Le4 d5
=/+ (-0.28) Tiefe: 3/14 00:00:00 2kN
=/+ (-0.64) Tiefe: 14/33 00:00:03 25424kN
1.Le6!! fxe6 2.Lh6 Sf4 3.gxf4 Sf8 4.Lxg7 Kxg7 5.Sg5 Db6 6.0-0-0 Db4 7.e3 Tb7
=/+ (-0.64) Tiefe: 14/33 00:00:05 45308kN
+- (1.95) Tiefe: 18/43 00:00:33 502mN
regard Anton
Nice position, but no problem for Deep Fritz 10!!
Malinin,V - Savinov,V, Leningrad-ch sf (Analyse) , Le6
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Deep Fritz 10:
1.Sxd5 Txb2 2.Dd1 Txe2+
+- (1.76) Tiefe: 1/6 00:00:00 0kN
=/+ (-0.29) Tiefe: 3/14 00:00:00 2kN
1.Ld2 Sb4 2.Dd1 Lb7 3.Lf4 Lxf3 4.exf3 Se5 5.Lxe5 Lxe5 6.f4 Lf6 7.Lg2 c4 8.Le4 d5
=/+ (-0.28) Tiefe: 3/14 00:00:00 2kN
=/+ (-0.64) Tiefe: 14/33 00:00:03 25424kN
1.Le6!! fxe6 2.Lh6 Sf4 3.gxf4 Sf8 4.Lxg7 Kxg7 5.Sg5 Db6 6.0-0-0 Db4 7.e3 Tb7
=/+ (-0.64) Tiefe: 14/33 00:00:05 45308kN
+- (1.95) Tiefe: 18/43 00:00:33 502mN
regard Anton
-
GARGAMEL
- Posts: 111
- Joined: Tue Dec 29, 2009 9:55 am
- Location: AUSTRIA
Re: Test Position: Malinin vs Savinov, Leningrad 1988
Hello
Malinin,V - Savinov,V, Leningrad-ch sf (Analyse), Le6
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Spark-0.3a:
1.Ld2 Sb4 2.Db1 Lb7 3.Lg2 Se5 4.Kf1 Sxf3 5.Lxf3 Lxf3 6.exf3 Kf8 7.Th7 Da5 8.a4 Da6+ 9.Sb5 Sd5
=/+ (-0.57) Tiefe: 6/7 00:00:00 25kN
=/+ (-0.56) Tiefe: 15/27 00:00:02 22383kN
1.Le6!! fxe6 2.Lh6 Sf4 3.gxf4 Sf8 4.Lxg7 Kxg7 5.Sh4 Db6 6.Tb1 g5 7.Tg1 Kf7 8.Txg5 Tec8 9.Sg6 Db7 10.Sxf8 Kxf8 11.Dg6 Dh1+ 12.Kd2 Dh8 13.Dxe6
= (-0.20) Tiefe: 15/27 00:00:03 36421kN
+- (2.12) Tiefe: 23/52 00:03:54 3262mN
regard Anton
Malinin,V - Savinov,V, Leningrad-ch sf (Analyse), Le6
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Spark-0.3a:
1.Ld2 Sb4 2.Db1 Lb7 3.Lg2 Se5 4.Kf1 Sxf3 5.Lxf3 Lxf3 6.exf3 Kf8 7.Th7 Da5 8.a4 Da6+ 9.Sb5 Sd5
=/+ (-0.57) Tiefe: 6/7 00:00:00 25kN
=/+ (-0.56) Tiefe: 15/27 00:00:02 22383kN
1.Le6!! fxe6 2.Lh6 Sf4 3.gxf4 Sf8 4.Lxg7 Kxg7 5.Sh4 Db6 6.Tb1 g5 7.Tg1 Kf7 8.Txg5 Tec8 9.Sg6 Db7 10.Sxf8 Kxf8 11.Dg6 Dh1+ 12.Kd2 Dh8 13.Dxe6
= (-0.20) Tiefe: 15/27 00:00:03 36421kN
+- (2.12) Tiefe: 23/52 00:03:54 3262mN
regard Anton
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Test Position: Malinin vs Savinov, Leningrad 1988
Crafty finds it, but not so quickly:acase wrote: [d] 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ -
Code: Select all
Crafty v23.1 (8 cpus)
White(1): setboard 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ -
White(1): st 300
search time set to 300.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 5:00 (+0.00) (5:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
8 0.07 -0.02 1. Bd2 Nb4 2. Qd1 e6 3. Bg4 Ne5 4.
Nxe5 Bxe5
8-> 0.07 -0.02 1. Bd2 Nb4 2. Qd1 e6 3. Bg4 Ne5 4.
Nxe5 Bxe5
9 0.10 0.07 1. Bd2 Nb4 2. Qd1 Ne5 3. Nxe5 Bxe5
4. a3 Bb7 5. Rh2
9-> 0.10 0.07 1. Bd2 Nb4 2. Qd1 Ne5 3. Nxe5 Bxe5
4. a3 Bb7 5. Rh2
10 0.19 0.09 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Nf6 4.
a3 Nbd5 5. Qa4 Qb6 <HT>
10-> 0.20 0.09 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Nf6 4.
a3 Nbd5 5. Qa4 Qb6 <HT>
11 0.24 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. Rh4 Bd4 6. Be3 Bxe3 7.
fxe3
11-> 0.29 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. Rh4 Bd4 6. Be3 Bxe3 7.
fxe3 (s=2)
12 0.38 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. Rh4 Bd4 6. Be3 Bxe3 7.
fxe3
12-> 0.47 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. Rh4 Bd4 6. Be3 Bxe3 7.
fxe3
13 1.12 -0.02 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. a3 Nd5 6. Qa4 Nxc3 7.
Bxc3 Bxc3+ 8. bxc3
13-> 1.56 -0.02 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. a3 Nd5 6. Qa4 Nxc3 7.
Bxc3 Bxc3+ 8. bxc3 (s=2)
14 1.96 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. a3 Nd5 6. Rb1 Bc4 7. Nxd5
exd5
14-> 2.47 -0.01 1. Bd2 Nb4 2. Qd1 e6 3. Bg2 Ne5 4.
Nxe5 Bxe5 5. a3 Nd5 6. Rb1 Bc4 7. Nxd5
exd5
15 6.36 -1 1. Bd2?
15 7.84 -0.43 1. Bd2 e6 2. Bg2 N7b6 3. b3 Nb4 4.
Qc1 Qf6 5. Ng5 N6d5 6. Nge4 Qd4 7.
a3 Nxc3 8. Qxc3
15-> 12.83 -0.43 1. Bd2 e6 2. Bg2 N7b6 3. b3 Nb4 4.
Qc1 Qf6 5. Ng5 N6d5 6. Nge4 Qd4 7.
a3 Nxc3 8. Qxc3 (s=3)
16 15.51 -0.48 1. Bd2 e6 2. Bg2 N7b6 3. b3 Nb4 4.
Qc1 Qf6 5. Ng5 Qe5 6. Nge4 f5 7. a3
fxe4 8. axb4 cxb4 (s=2)
16-> 21.43 -0.48 1. Bd2 e6 2. Bg2 N7b6 3. b3 Nb4 4.
Qc1 Qf6 5. Ng5 Qe5 6. Nge4 f5 7. a3
fxe4 8. axb4 cxb4 (s=3)
17 38.51 -0.30 1. Bd2 e6 2. Bg2 Qb6 3. Rb1 Qb7 4.
O-O N7b6 5. Ng5 Bxc3 6. bxc3 Bxe2 7.
c4 Bxf1 8. Rxf1 Qc6 9. cxd5 exd5 (s=2)
17-> 45.82 -0.30 1. Bd2 e6 2. Bg2 Qb6 3. Rb1 Qb7 4.
O-O N7b6 5. Ng5 Bxc3 6. bxc3 Bxe2 7.
c4 Bxf1 8. Rxf1 Qc6 9. cxd5 exd5
18 54.97 -0.30 1. Bd2 e6 2. Bg2 Qb6 3. Rb1 Qb7 4.
O-O N7b6 5. Ng5 Bxc3 6. bxc3 Bxe2 7.
c4 Bxf1 8. Rxf1 Qc6 9. cxd5 exd5
18 2:31 +1 1. Be6!
18 2:55 +3 1. Be6!
18 3:25 1.37 1. Be6 fxe6 2. Bh6 Nf8 3. Bxg7 Ne3
4. fxe3 Kxg7 5. Qa4 Bb7 6. O-O-O Bxf3
7. exf3 Nd7 8. Rh2 Rh8 9. Rxh8 Kxh8
10. Rh1+ Kg8
18-> 3:25 1.37 1. Be6 fxe6 2. Bh6 Nf8 3. Bxg7 Ne3
4. fxe3 Kxg7 5. Qa4 Bb7 6. O-O-O Bxf3
7. exf3 Nd7 8. Rh2 Rh8 9. Rxh8 Kxh8
10. Rh1+ Kg8
19 4:22 1.57 1. Be6 fxe6 2. Bh6 Nf4 3. gxf4 Nf8
4. Bxg7 Kxg7 5. Ng5 Qa5 6. Rh4 Bc4
7. f3 Qb4 8. b3 Ba6 9. Kf2 Kg8 10.
e3
19-> 4:40 1.57 1. Be6 fxe6 2. Bh6 Nf4 3. gxf4 Nf8
4. Bxg7 Kxg7 5. Ng5 Qa5 6. Rh4 Bc4
7. f3 Qb4 8. b3 Ba6 9. Kf2 Kg8 10.
e3
time=5:00 mat=0 n=6206177634 fh=90% nps=20.7M
extensions=291.2M qchecks=296.7M reduced=417.4M pruned=2378.3M
predicted=0 evals=2646.2M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=510176 aborts=74791 data=68/512 elap=5:00
terminating SMP processes.
White(1): Be6
time used: 5:00
Code: Select all
Searching: 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ -
infinite: 0 ponder: 0 time: 0 increment: 0 moves to go: 0
2 +1.98 00:00 1085 Nxd5 Rxb2
3 -0.40 00:00 1782 Nxd5 Rxb2 Qa4 Rxe2+ Kf1 Bxa1 Qxa6
4 -0.40 00:00 2687 Nxd5 Rxb2 Qa4 Rxe2+ Kf1 Bxa1 Qxa6
5 -1.94 00:00 5267 Nxd5 Rxb2 Qd1 Bxe2 Qxe2 Rxe2+ Kxe2 Bxa1 Rxa1
5 -1.90 00:00 6326 Bxd7 Nxe3 fxe3 Qxd7 Kf1 Kf8
5 -0.97 00:00 12219 Bd2 Nb4 Qb1 f5 Kf1
6 -1.09 00:00 17306 Bd2 Nb4 Qb1 f5 Kf1 e6
7 -0.89 00:00 50839 Bd2 Nb4 Qb1 e6 Bg2 Nd5 Qc2 Kf8 Rh7 N5f6
8 -0.81 00:00 64881 Bd2 Nb4 Qb1 e6 Bg2 Nd5 Qc2 Kf8 Ng5 Re7 Nxd5 exd5
9 -0.97 00:00 169101 Bd2 Nb4 Qb1 e6 Kf1 Nd5 Qc2 Nxc3 Bxc3 Bxc3 Qxc3
Qf6 Qxf6 Nxf6
10 > -0.57 00:00 454236 Bd2 Nxc3 Bxc3 Bxc3+ bxc3 Nf6 Be6
11 -0.77 00:01 1822k Bd2 Nxc3 Bxc3 Bxc3+ bxc3 e6 Rd1 d5 Bg2 Qf6 Kf1
Ne5 Nxe5 Qxe5 a4 Bc4
12 -0.81 00:01 3043k Bd2 Nxc3 Bxc3 Bxc3+ Qxc3 Nf6 Bf1 Bb7 Rd1 Qb6 b3
e5 Qd2 Ne4
13 -1.01 00:02 11843k Bd2 e6 a3 Nxc3 Bxc3 Bxc3+ bxc3 Qf6 Bg2 Nb6 Rc1
Nc4 Kf1 Bb7 a4 Bc6
14 -1.01 00:05 29779k Bd2 e6 Rd1 Qb6 b3 Nb4 Qb1 Nd5 Qc2 f5 Kf1 N7f6 Bg5
Qa5 Nxd5 Nxd5 Bg2
15 -1.17 00:06 33533k Bd2 e6 Rc1 N7b6 b3 Nb4 Qb1 N4d5 Qc2 Nxc3 Bxc3
Bxc3+ Qxc3 Nd5 Qb2 Qa5+ Kf1 Bb5 Bg2
16 -1.13 00:11 69055k Bd2 e6 Rc1 Qb6 b3 Nb4 Qb1 Qc6 Bg2 Ne5 O-O Nxf3+
Bxf3 Qd7 Ne4 f5 Ng5 Nd5 Rfd1
17 < -1.37 00:22 147288k Bd2 e6 Kf1 N7b6 Bg5 Qd7 Rd1 Qc6 Nxd5 exd5
17 > -0.89 00:27 183564k Be6 Nxe3 Bxf7+ Kxf7 Ng5+ Kg8 Qxg6 Ng2+ Kf1
18 > +0.12 00:36 251523k Be6 fxe6 Bh6 Bxh6 Qxg6+ Bg7 Qxe6+ Kf8 Ng5 Bxc3+
bxc3
19 +2.67 01:38 729189k Be6 fxe6 Bh6 Nf4 gxf4 Nf8 Bxg7 Kxg7 Ng5 Qd7 O-O-O
e5 Rh4 Bb7 fxe5 Qf5 Qxf5 gxf5 exd6 Kf6 Nh7+ Nxh7
Rxh7 exd6 Rxd6+ Ke5 Rg6
20 +2.63 02:29 1109M Be6 fxe6 Bh6 Nf4 gxf4 Nf8 Bxg7 Kxg7 Ng5 Qb6 O-O-O
Bb7 e4 c4 Rh4 Bc6 Rdh1 Qd4 R1h3 Qf6 Qe2 Kg8 Qxc4
Rec8 Kb1
Nodes: 1136302824
Nodes/second: 7417168
Best move: Be6
Ponder move: fxe6
-
beachknight
- Posts: 3533
- Joined: Tue Jan 09, 2007 8:33 pm
- Location: Antalya, Turkey
Re: Test Position: Malinin vs Savinov, Leningrad 1988
DF11 as well:
Code: Select all
9: 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Deep Fritz 11:
1.Bd2 e6 2.Rb1 Nb4 3.Qd1 Ne5 4.Nxe5 Bxe5 5.Bg2 d5 6.Kf1 Qb6 7.Rh4 Bf6 8.Rh6
-/+ (-0.76) Depth: 16/36 00:00:10 60404kN
1.Bd2 Nb4 2.Qb1 Bb7 3.a3 Bxf3 4.exf3 Nc6 5.f4 Nd4 6.Bg2 e5 7.f5 gxf5
-/+ (-0.86) Depth: 17/38 00:00:21 132mN
1.Bd2 Nb4 2.Qb1 Bb7 3.Bg2 Ne5 4.Kf1 Nxf3 5.Bxf3 Bxf3 6.exf3 c4 7.Qe4 d5 8.Qh4 Kf8
-/+ (-0.74) Depth: 18/37 00:00:31 199mN
1.Bd2 Nb4 2.Qd1 Bb7 3.0-0 e6 4.Bg2 Nb6 5.Qb3 N6d5 6.e4 Nxc3 7.bxc3 Nd3 8.Qc4
-/+ (-0.89) Depth: 19/43 00:00:51 342mN
1.Be6 fxe6 2.Bh6 Nf8 3.Bxg7 Ne3 4.fxe3 Kxg7 5.0-0-0 Qa5 6.Rdf1 c4
+- (2.33) Depth: 19/45 00:01:44 729mN
1.Be6 fxe6 2.Bh6 Nf8 3.Bxg7 Ne3 4.fxe3 Kxg7 5.Qd2 Nd7 6.Ng5 Kg8 7.Nxe6 Qc8 8.Nd5
+- (2.33) Depth: 20/42 00:02:21 1003mN
(, chessengines20 31.01.2010)
hi, merhaba, hallo HT
-
beachknight
- Posts: 3533
- Joined: Tue Jan 09, 2007 8:33 pm
- Location: Antalya, Turkey
Re: Test Position: Malinin vs Savinov, Leningrad 1988
C2301 too:
Code: Select all
9: 1r1qr1k1/3nppb1/b2p2p1/2pn4/8/
1r1qr1k1/3nppb1/b2p2p1/2pn4/8/2N1BNPB/PPQ1PP2/R3K2R w KQ - 0 1
Analysis by Crafty 23.01 cb w32:
1.Bd2 e6 2.Bg2 N7b6 3.b3 Nb4 4.Qc1 Qf6 5.Ng5 N6d5 6.Nge4 Qd4 7.a3 Nxc3 8.Qxc3
=/+ (-0.43) Depth: 15/34 00:00:25 132mN
1.Bd2 e6 2.Bg2 N7b6 3.b3 Nb4 4.Qc1 Qf6 5.Ng5 Qe5 6.Nge4 f5 7.a3 fxe4 8.axb4 cxb4
=/+ (-0.48) Depth: 16/36 00:00:51 271mN
1.Bd2 e6 2.Bg2 N7b6 3.b3 Nb4 4.Qc1 N6d5 5.a3 Nc6 6.Rb1 Na5 7.Qc2 Qb6 8.Ng5 Nxb3 9.Nce4
=/+ (-0.49) Depth: 17/37 00:01:27 472mN
1.Bd2 e6 2.Bg2 Qb6 3.Rb1 Nxc3 4.Bxc3 Qb5 5.Rd1 Bxc3+ 6.bxc3 Qb2 7.Qd2 Nf6 8.Rh4 Qxd2+ 9.Rxd2 Rb1+ 10.Rd1 Rb2 11.c4
=/+ (-0.32) Depth: 18/42 00:05:36 1799mN
1.Be6
= (-0.09) Depth: 18/45 00:10:57 1354mN
(, chessengines20 31.01.2010)
hi, merhaba, hallo HT
-
beachknight
- Posts: 3533
- Joined: Tue Jan 09, 2007 8:33 pm
- Location: Antalya, Turkey
Re: Test Position: Malinin vs Savinov, Leningrad 1988
My big opening tree suggests: Qxg6!
fxg6 Be6+ Kf8 -+
fxg6 Be6+ Kf8 -+
hi, merhaba, hallo HT
-
jdart
- Posts: 4402
- Joined: Fri Mar 10, 2006 5:23 am
- Location: http://www.arasanchess.org
Re: Test Position: Malinin vs Savinov, Leningrad 1988
That's a good one. Arasan is very slow on this: about 10 minutes on a quad.
--Jon
--Jon
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rightrook
- Posts: 1452
- Joined: Wed Mar 08, 2006 8:45 pm
Re: Test Position: Malinin vs Savinov, Leningrad 1988
Hiarcs 11.2...finds Be6 in only 3 seconds...
-
rightrook
- Posts: 1452
- Joined: Wed Mar 08, 2006 8:45 pm
Re: Test Position: Malinin vs Savinov, Leningrad 1988
>>>It is somewhat shocking to me how many "brilliancies" have been proven unsound after looking at them with a computer. <<<
Yes, I have discovered the same thing, and agree with you...
Especially the moves of Paul Morphy...
they seem to win...but have a strange enigma about them...
They do not make good test moves...most of the time, anyway.
Thanks!
Robert
Yes, I have discovered the same thing, and agree with you...
Especially the moves of Paul Morphy...
they seem to win...but have a strange enigma about them...
They do not make good test moves...most of the time, anyway.
Thanks!
Robert