Author: Steven J. Brann
Date: 04:28:57 07/22/01
Go up one level in this thread
On July 21, 2001 at 21:56:16, Sune Larsson wrote: > > [D]6k1/6pp/3n4/1n1p1P2/p1pP1NP1/PpP1K3/1B5P/8 b - - 0 1 > > Euwe - Averbakh, Zuerich 1953 > > > In this position white has just played 36.Nh5-f4, casting eyes on > the squares d5 and e6. Averbakh, just like a Spanish matador, went > for the swift kill, and just 4 moves later Euwe resigned. It happened: > > 36.-Nxa3! (clears the road for the pawns) 37.Bxa3 Nb5 38.Bc1 Nxc3 > 39.Ne2 Nb1! and white resigned 0-1 > > > It looks like Deep Fritz has some trouble with this position. > DF wants to protect the pawn on d5 with 36.-Nc7, tried it so far > as ply20 and 10 min on a PIII 800. > > > Test: The mission is clear and the direct winning line above. > > Sune CM8000 with custom personality on a PIII with 16mb hash also identifies the key move ...Nxa3 in less than a second. Time Depth Score Positions Moves 0:00 1/8 -1.15 36255 1...Nc7 2. Kd2 Kf7 3. Kc1 Ne4 4. h3 Ke7 5. h4 Kd6 0:00 1/8 -1.18 55130 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Ne4+ 5. Kd1 Nf2+ 6. Kd2 Nxg4 7. Nxd5 Nxh2 0:00 2/9 -1.21 110881 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Ne4+ 5. Kd1 c3 6. Nxd5 Nf2+ 7. Ke2 b2 0:03 3/10 -1.12 400987 1...Nxa3 2. Bxa3 Nb5 3. Bc1 a3 4. Kd2 b2 5. Bxb2 axb2 6. Kc2 Nxc3 7. Kxb2 Nd1+ 8. Kc2 Ne3+ 9. Kc3 0:09 4/11 -1.50 1256535 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Nb5 5. Nxd5 a3 6. Ne7+ Kf8 7. f6 gxf6 0:22 5/12 -1.71 3133288 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Nb5 5. Nxd5 a3 6. Bxa3 Nxa3 7. Kc3 Kf7 8. Kb2 0:48 6/13 -1.99 7068518 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Nb5 5. Nxd5 a3 6. f6 b2 7. Ne7+ Kf7 8. fxg7 Kxg7 9. Nf5+ Kf6 10. Kc2 bxc1=Q+ 11. Kxc1 a2 1:54 7/14 -1.92 16453117 1...Nxa3 2. Bxa3 Nb5 3. Bc1 Nxc3 4. Kd2 Nb5 5. Nxd5 a3 6. Bxa3 Nxa3 7. Kc3 Nb5+ 8. Kb2 Nxd4 9. Nb6 h5 10. Nxc4 hxg4 Steve
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