Author: Ernst Walet
Date: 13:06:09 05/26/01
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Results with CM8000, hardware PIII-500E. CM8000 finds a mate in 11 with the first and a mate in 9 with the second position. On May 26, 2001 at 15:46:20, Uri Blass wrote: >[D]2nbkn2/1P1pp1P1/1qPrPq1r/B2N3b/3PN3/q1RB4/3K2Q1/5R2 b - - > >This position is based on leonid's position but it is black to move. > >Black can force mate in at most 11 when the main line begins with > >1...Qbb2+ 2.Ke3 Qxd4+ 3.Kxd4 Rxd5+ 4.Ke3 Bb6+ 5.Bxb6 Qxb6+ 6.Nc5 Qbxc5+ >7.Rxc5 Rd3+ > >Junior found this line and yace by going forward and backward decided to believe >Junior. > Time Depth Score Positions Moves 0:01 1/3 -10.97 14904 1...Qab2+ 2. Rc2 Qxa5+ 3. Nec3 Qxc2+ 4. Kxc2 0:02 1/4 -9.66 65955 1...Qab2+ 2. Rc2 Qxa5+ 3. Nec3 Qbxc3+ 4. Rxc3 Qa2+ 5. Kc1 0:06 1/5 -9.55 267449 1...Qab2+ 2. Rc2 Qxa5+ 3. Nec3 Qbxc3+ 4. Rxc3 Qa2+ 5. Kc1 Qa1+ 6. Kd2 Qb2+ 7. Rc2 0:11 1/5 -12.84 487210 1...Qbb2+ 2. Ke3 Qxd4+ 3. Kxd4 Rxd5+ 4. Ke3 Bb6+ 5. Bxb6 Qxb6+ 6. Nc5 Rxe6+ 7. Kf2 Qbxc5+ 8. Rxc5 Qxc5+ 9. Kg3 Rxd3+ 10. Kh2 0:17 1/6 -Mate11 865820 1...Qbb2+ 2. Ke3 Qxd4+ 3. Kxd4 Rxd5+ 4. Ke3 Bb6+ 5. Bxb6 Qxb6+ 6. Nc5 Qbxc5+ 7. Rxc5 Rxd3+ 8. Ke4 Nd6+ 9. Kf4 Nxe6+ 10. Ke5 Qxc5+ 11. Qd5 Rxd5# 0:28 1/7 -Mate11 1609347 1...Qbb2+ 2. Ke3 Qxd4+ 3. Kxd4 Rxd5+ 4. Ke3 Bb6+ 5. Bxb6 Qxb6+ 6. Nc5 Qbxc5+ 7. Rxc5 Rxd3+ 8. Ke4 Nd6+ 9. Kf4 Nxe6+ 10. Ke5 Qxc5+ 11. Qd5 Qxd5# 1:02 1/8 -Mate11 3958649 1...Qbb2+ 2. Ke3 Qxd4+ 3. Kxd4 Rxd5+ 4. Ke3 Bb6+ 5. Bxb6 Qxb6+ 6. Nc5 Qbxc5+ 7. Rxc5 Rxd3+ 8. Ke4 Nd6+ 9. Kf4 Nxe6+ 10. Ke5 Qxc5+ 11. Qd5 Qxd5# >[D]2kr3r/ppp2p2/7p/8/6bq/2Q5/PPP3K1/RNB1N3 b - - 0 1 > >This position is from a practical game of Deep Fritz in the ICC tournament(round >1). > >The opponent resigned but Deep Fritz can probably force mate in 9 moves by >21...Rhg8 22.Bf4 Bh3+ 23.Kf3 Qg4+ 24.Ke3 Qg1+ 25.Kf3 Bg4+ 26.Ke4 f5+ 27.Ke5 Qb6 >28.Qxc7+ >Kxc7 Nf3 Rge8# > >At least this is the opinion of yace. Time Depth Score Positions Moves 0:01 1/4 -3.09 11298 1...Rhe8 2. Be3 Bh3+ 3. Kf3 Rd1 0:01 1/5 -5.78 30778 1...Rhe8 2. Be3 Bh3+ 3. Kf3 Rd1 4. a4 Rxe1 0:02 1/6 -5.78 82358 1...Rhe8 2. Be3 Bh3+ 3. Kf3 Rd1 4. a4 Rxe1 0:04 1/7 -8.45 318086 1...Rhe8 2. Be3 Bh3+ 3. Kf3 Rd1 4. Qg7 Qe4+ 5. Kg3 Qxe3+ 6. Kh2 Rxe1 7. Qxf7 0:14 1/7 -10.51 1062757 1...Rde8 2. Qxh8 Rxh8 3. Be3 Bh3+ 4. Kf3 Qf6+ 5. Kg3 Rg8+ 6. Kh2 Qe5+ 7. Kh1 Qxe3 0:19 1/8 -10.54 1490758 1...Rde8 2. Qxh8 Rxh8 3. Nc3 Qxe1 4. Rb1 Bf5 5. Bf4 Rg8+ 6. Kf3 Be4+ 7. Nxe4 Qxb1 1:00 1/8 -Mate10 5202075 1...Rhg8 2. Bf4 Bh3+ 3. Kf3 Qg4+ 4. Ke3 Qg1+ 5. Kf3 Bg4+ 6. Ke4 Rge8+ 7. Be5 f5+ 8. Kf4 Qf2+ 9. Nf3 Rd4+ 10. Bxd4 Re4# 1:20 1/9 -Mate09 7000263 1...Rhg8 2. Bf4 Bh3+ 3. Kf3 Qg4+ 4. Ke3 Qg1+ 5. Kf3 Bg4+ 6. Ke4 f5+ 7. Ke5 Qb6 8. Qc6 Qxc6 9. Nf3 Qd6# 1:59 1/10 -Mate09 10835849 1...Rhg8 2. Bf4 Bh3+ 3. Kf3 Qg4+ 4. Ke3 Qg1+ 5. Kf3 Bg4+ 6. Ke4 f5+ 7. Ke5 Qb6 8. Qc6 Qxc6 9. Nf3 Qd6# 3:36 1/11 -Mate09 20519024 1...Rhg8 2. Bf4 Bh3+ 3. Kf3 Qg4+ 4. Ke3 Qg1+ 5. Kf3 Bg4+ 6. Ke4 f5+ 7. Ke5 Qb6 8. Qc6 Qxc6 9. Nf3 Qd6# > >Uri Ernst.
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