Author: Marek Soszynski
Date: 08:03:02 06/25/01
Go up one level in this thread
++++++++++ NCO Test 1 K6II-500 CM8000 CM5000 Genius 2 Fritz 5 255s >7200s >14400s 1672s PIII-450, 48Mb Hash Hiarcs 7.32 Junior 6a 2888s 860s ++++++++++ NCO Test 2 K6II-500 CM8000 CM5000 Genius 2 Fritz 5 53s 232s >3600s >3600s PIII-450, 48Mb Hash Hiarcs 7.32 Junior 6a 946s 161s ++++++++++ NCO Test 3 K6II-500 CM8000 CM5000 Genius 2 Fritz 5 332s 2974s 381s 943s PIII-450, 48Mb Hash Hiarcs 7.32 Junior 6a 204s 347s ++++++++++ On June 18, 2001 at 01:09:30, Dana Turnmire wrote: > Here are 3 positions found in Nunn's Chess Openings where all the "solutions" >are considered "brilliant" moves. I don't have any of the current top chess >programs so I compared the three that I do have to CM8000 (CM5000, Fritz 5 and >Genius 2). CM8000 does very well compared to these programs and I may be wrong >but I doubt if any of the other top programs could do much better than CM8000 >with these problems. At the end of each problem I give CM8000's analysis of the >correct move. I may try to add a few more in the near future. > All problems were run on an AMD k6-2/500 128RAM computer. > >NCO Test 1 > >English Opening (Hedgehog) 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. 0-0 e6 6. >Nc3 Be7 7. Re1 d6 8. e4 e5 9. Nh4 Nc6 10. Nf5 Bf8 11. Qa4 g6. White to play. >Solution: 12. d4! > >CM8000 4'15". CM5000 couldn't find the correct move after 2 hours. Genius 2 >couldn't find the correct move after 4 hours. Fritz 5 27'52". > >The Chessmaster recommends: Pawn to d4. > >Analysis: You move your pawn to d4. Black counters with pawn takes knight, which >double-attacks your pawn at d4. You move your pawn to d5, which moves it out of >harm's way and threatens Black's knight at c6. Black responds by moving queen to >d7, which frees Black's knight at c6 from the pin, removes the threat on Black's >pawn at f5, and clears the way for a queenside castle. Your pawn captures >knight, which forks Black's bishop at b7 and Black's queen and creates a passed >pawn on c6. Black answers with bishop captures pawn, which removes the threat on >Black's queen and threatens your queen. You move your queen to c2, which moves >it to safety. Black counters with knight captures pawn. Your knight captures >knight, which blocks Black's pawn at e5. Black responds with pawn takes knight. >Your bishop takes pawn, which partially pins Black's bishop at c6 and blocks >Black's pawn at e5. Black responds with pawn to h6. > >As a result of this line of play, your attack potential is greatly enhanced. In >addition, Black's pawn formation is somewhat disrupted. > >NCO Test 2 > >Schmid Benoni 1. d4 c5 2. d5 Nf6 3. Nf3 g6 4. Nc3 Bg7 4. Nc3 Bg7 5. e4 0-0 6. >e5 Ng4 7. Ng5 Nh6 8. h4 Bxe5 9. h5 Nf5. White to move. Solution: 10. Nxh7! > >CM8000 53". CM5000 3'52". Genius 2 couldn't find the correct move after 1 >hour. Fritz 5 couldn't find the move after one hour. > >The Chessmaster recommends: Knight takes pawn at h7. > >Analysis: Your knight takes pawn at h7, which attacks Black's rook at f8. Black >responds by moving rook to e8, which moves it to safety. Your pawn takes pawn, >which removes the threat on your knight at h7. Black responds with pawn captures >pawn. You move your pawn to g4, which attacks Black's knight at f5. Black >counters with knight to d6, which moves it to safety and blocks your pawn at d5. >You move your bishop to d3, which attacks Black's pawn at g6 and makes way for a >castle to the kingside. Black replies by moving pawn to e6. Your bishop captures >pawn, which attacks Black's rook at e8 and creates a passed pawn on g4. Black >responds by moving rook to e7, which moves it to safety. You move your bishop to >g5, which pins Black's rook at e7 and attacks Black's rook at e7. > >As a result of this sequence of moves, you win three pawns for a pawn. In >addition, your attack potential is greatly enhanced, and Black's attack >potential is somewhat decreased. Also, your pawn development is a little >stronger, and the development of Black's pawns is somewhat weakened. Lastly, the >pressure on Black's King is somewhat increased. > >NCO Test 3 > >Sicilian Defense 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6 >7. Be3 Be7 8. Qe2 0-0 9. 0-0-0 a6 10. Bb3 Qc7 11. Rhg1 Nd7 12. g4 Nc5 13. Nf5 b5 >14. Bd5 Bb7 15. g5 Rfc8 16. Rg3 Ne5 17. Rh3 Ng6 18. Qh5 Nf8. White to move. >Solution: 19. Nxg7! > >CM8000 5'32". CM5000 49'34". Genius 2 6'21". Fritz 5 15'43". > >The Chessmaster recommends: Knight takes pawn at g7. > >Analysis: Your knight takes pawn at g7, which isolates Black's pawn at h7. Black >answers with bishop captures bishop. You move your queen to h6, which protects >your knight at g7 and blocks Black's pawn at h7. Black answers with bishop at e7 >takes pawn, which partially pins your bishop, attacks your queen, and isolates >your pawn at h2. Your bishop captures bishop, which removes the threat on your >queen. Black answers with knight captures pawn, which removes the threat on >Black's bishop, threatens your pawn at f2, and isolates your pawn at f2. You >move your knight to f5, which threatens mate (queen to g7). Black answers with >pawn captures knight. Your rook captures bishop, which attacks Black's pawn at >f5 and blocks Black's pawn at d6. Black counters with the pawn to b4, which >attacks your knight. > >As a result of this sequence of moves, Black's mobility is somewhat decreased. >Additionally, Black's pawn formation is demolished.
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