Here are some chess puzzles from the games by computers (1990-94).
White to move and win except where noted.
Solutions are between the brackets under each puzzle.Drag your cursor from one bracket to the other.
Computer Puzzles, Part I. White to move and win except where noted.
a)
White Mates in 7. "Hitech" vs Fred Van Der Vliet, Hague, 1990
2rqk3/p3n2p/bP2Q1p1/5r2/3P4/1B6/P4PPP/2R1R1K1 w - - 0 1
[ Qg8+ if Kd7 or Rf8 Ba4+ ]
b)
White Mates in 2. "Mach IV" vs Piet Bakker, Hague, 1990
2krr3/1p1n1p1p/p1bB1np1/8/P1R1p3/1PN5/2P1BPPP/3R2K1 w - - 0 1
[ Rxc6+ ]
c)
"Mephisto Lyon 68030" vs E Schlueter, Dortmund, 1991
1rb3rk/1p3p1p/pNn1pb2/7q/N1Pp4/P5PP/1P1Q1PB1/3RR1K1 w - - 0 1
[ Bxc6 if bxc6 Qf4 ]
d)
White Mates in 4. "Mephisto" vs Alexander Munninghof, Hague, 1991
3Q4/4r1pp/b6k/6R1/8/1qBn1N2/1P4PP/6KR w - - 0 1
[ Bxg7+ Rxg7 Qf6+ ]
e)
"Novag" vs Michael Hoving, Hague, 1991
3R4/1R3p2/B1p1pp2/2kp3p/3bPP2/8/P1q3PP/7K w - - 0 1
[ Rb5+ if cxb5 Rc8+ ]
Computer Puzzles, Part II. White to move and win.
a)
"Dappet" vs "Delta", Netherlands, 1991
r3kbnr/pp1qpppp/2n5/8/3P2b1/2N2N2/PP3PPP/R1BQKB1R w KQkq - 0 1
[ d5 w/Bb5 ]
b)
"Nightmare" vs "Kallisto", Netherlands, 1991
r5k1/3qpp2/pp3npQ/r1p1p2p/P1P1P1P1/1P1P1PNP/6R1/3R1K2 w - - 0 1
[ Nf5 if Ne8 gxh5 ]
c)
"Mephisto Lyon 68030" vs Rainer Siegmund, Nettetal, 1991
5rk1/2R2pb1/1r1p3p/3B1Qp1/q7/4P1PP/5P2/3R2K1 w - - 0 1
[ Be4 if Qxd1+ Kg2 mates ]
d)
"Novag" vs Peter Frost, Melbourne, 1992
r5k1/pp4pp/2nbrqn1/3p4/6P1/7P/PPP2PB1/R1BQR1K1 w - - 0 1
[ Rxe6 if Qxe6 Bxd5 ]
e)
"Pondus/Saitek" vs Kazimierz Szydelko, Polanica Zdroj, 1992
r2q1rk1/pb1nbppp/1p2p3/6B1/2BN2Q1/4P3/PP3PPP/2R2RK1 w - - 0 1
[ Nxe6 if fxe6 Qxe6+ w/Bxe7 ]
Computer Puzzles, Part III. White to move and win except where noted.
a)
"Dappet" vs "Chess Mate", Utrecht, 1992
2r2rk1/pp1b1ppp/2nbpn2/3pN1B1/3P4/2PB4/PP1NQPPP/R4RK1 w - - 0 1
[ Bxf6 if gxf6 Qg4+ w/Qh5 ]
b)
"Goldbar" vs "Duck", Utrecht, 1992
r4rk1/pbp3pp/2p1q3/4N3/4p3/2Q5/PPP2PPP/R2R2K1 w - - 0 1
[ Nd7 Rf7 Nc5 if Qc8 Qb3+ ]
c)
White Mates in 3. "Socrates Expert" vs Alexander Ivanov, Boston, 1993
3k4/1R6/3N2n1/p2Pp3/2P1N3/3n2Pp/q6P/5RK1 w - - 0 1
[ Rf8+ Nxf3 Nf7+ ]
d)
"Mephisto Vancouver" vs Gerhard Schebler, Dortmund, 1993
r2q1rk1/pp2ppbp/8/5P2/2bnB3/2N1B3/PP4PP/R2Q1RK1 w - - 0 1
[ f6 if Bxf6 Qh5 mates ]
e)
"Mephisto Vancouver" vs Oliver Kraus, Dormund, 1993
8/3bq1k1/3Np1p1/4PpNp/1n1P3P/Q7/p4PPK/8 w - - 0 1
[ Qxb4 if a1/Q Nxf5+ mates ]
Computer Puzzles, Part IV. White to move and win.
a)
"Schach 3" vs Wim Van Der Wijk, Hague, 1993
rnb1k2r/p3bpp1/2pp1q1p/4p3/4P3/2N2N2/PPP2PPP/R2QKB1R w KQkq - 0 1
[ Nd5 if cxd5 Qxd5 ]
b)
"Schach 3" vs "Goldbar", Leiden, 1993
1rb4k/2p1N1pp/3p1r1q/1p6/5nR1/1P4Q1/2P2PPP/3R1BK1 w - - 0 1
[ Nxc8 Rxc8 Rh4 if Qg6 Rxf4 or if Nh5 Qh3 ]
c)
"Sparc 50Mhz" vs Milan Petras, Muenster, 1993
3b2k1/r6n/1p2p3/p2pP1nN/P2P4/1N6/1P1B1K2/6R1 w - - 0 1
[ Nf6+ ]
d)
"Greif" vs "Nightmare", Munich, 1993
4r1k1/p1pq2pp/Q1p5/1rb2p2/8/2B1R3/PP3PPP/1R4K1 w - - 0 1
[ Rxe8+ Qxe8 a4 if Rb8 Qc4+ ]
e)
"Nightmare" vs "Mato Grosso", Netherlands, 1993
rnb1kb1r/1p3ppp/p2p1n2/4p3/1q2PP2/1NN5/PPP1B1PP/R1BQ1RK1 w - - 0 1
[ Be3 if Nxe4 Nd5 or if Nc6 a3 ]
Computer Puzzles, Part V. White to move and win.
a)
"Chess Genius X" vs Laszlo Kovacs, Budapest, 1994
3qr1k1/3npp1p/2rp2p1/8/4P3/1Bb1BP2/R1PQ2PP/5RK1 w - - 0 1
[ Bxf7+ if Kxf7 Qd5+ ]
b)
"Fritz 2" vs Herman Grooten, Hague, 1994
r1q1kb1r/3n1p2/ppNppp2/1N6/2P4p/4PQ2/PP3PPP/R3K1R1 w Q - 0 1
[ Nca7 if Qb8 Qxa8 ]
c)
"Gideon 2" vs Heleen De Greef, Hague, 1994
1r2r1k1/3n2pR/1qnPp1p1/p1p2pB1/P1P5/1B5Q/5PPP/3R2K1 w - - 0 1
[ Rxg7+ Kxg7 Qh6+ Kg8 Qxg6 Kh8 Rd3 ]
d)
"Schach 3" vs Ed Voortmeijer, Hague, 1994
r2r2k1/3q1p2/3Pp2p/ppP3p1/6R1/1P2Q3/5PPP/3R2K1 w - - 0 1
[ Rxg5+ if gxg5 Qxg5+ ]
e)
"Hector 2" vs "Matchess", Leiden, 1994
2k1rb1r/pp2pppp/2p5/4N3/3P4/2q1PQ1P/P4PP1/1R3RK1 w - - 0 1
[ Rfc1 if Qa5 Rxc6+ mates ]
Computer Puzzles, Part VI. White to move and win except where noted.
a)
"The King" vs "Delta", Leiden, 1994
r2qkb1r/2pnppp1/p3bn1p/6N1/NppPP3/4B3/PP2BPPP/R2QK2R w KQkq - 0 1
[ Nxe6 if fxe6 Bh5+ mates ]
b)
White Mates in 4. "Chess Guru" vs "Francesca", London, 1994
5r2/1pP1b1p1/pqn1k2p/4p3/QP2BP2/P3P1PK/3R4/3R4 w - - 0 1
[ Qb3+ Kf6 Rd6+ ]
c)
White Mates in 4. "Chess Guru" vs "Pawnder", London, 1994
4r3/2B4B/2p1b3/ppk5/5R2/P2P3p/1PP5/1K5R w - - 0 1
[ b4+ w/axb4+ & c4+ ]
d)
"Ferret" vs "Notchess", London, 1994
r1bqk2r/pp1pbppp/2n1p3/2n1P3/2P5/P1N1BN2/1P3PPP/R2QKB1R w KQkq - 0 1
[ b4 ]
e)
"Hiarcs" vs "Mirage", London, 1994
r3r1k1/2pbq1p1/p3p2p/1pPPNp2/1P6/P1Q5/5PPP/2R1R1K1 w - - 0 1
[ d6 cxd6 cxd6 if Qd8 Qc7 Qxc7 Rxc7 or if Qxd6 Rcd1 ]
Computer Puzzles, Part VII. White to move and win except where noted.
a)
"Hiarcs" vs "Psycho", London, 1994
rnbqr1k1/2p2ppp/pp2p1n1/3P4/2B1P3/5N2/PP1QNPPP/2RR2K1 w - - 0 1
[ dxe6 ]
b)
"MChess Pro" vs "Centaur", London, 1994
3r2k1/p1r2pp1/Bp2p2p/2bn4/P7/2P5/1P1B1PPP/3RR1K1 w - - 0 1
[ Bf4 if Rcd7 Bb5 or if Bd6 Bxd6 w/c4 ]
c)
"MChess Pro" vs "Notchess", London, 1994
r3r3/pppqb2k/5pp1/7p/2P2Q2/1P2R3/PB3PPP/4R1K1 w - - 0 1
[ Qd4 ]
d)
White Mates in 5. "MChessPro" vs "Psycho", London, 1994
rnbqr1k1/pp1pb1pp/8/2p1P1N1/4N3/2P4P/P4KP1/R1BQ3R w - - 0 1
[ Qd5+ ]
e)
White Mates in 3. "Mirage" vs "Francesca", London, 1994
6kr/p1Q3pp/3Bbbq1/8/5R2/5P2/PP3P1P/4KB1R w - - 0 1
[ Qd8+ ]
Computer Puzzles, Part VIII. White to move and win.
a)
"Phoenix" vs "Notchess", London, 1994
r4rk1/1pp2ppp/2np1q2/p7/1bPP2b1/6P1/PP2NPBP/R1BQ1RK1 w - - 0 1
[ f3 w/a3 or d5 ]
b)
"Phoenix" vs "Pawnder", London, 1994
r1bqr2k/p1ppbppp/1pn2n2/3N2BN/2PP4/6P1/PP3PBP/R2Q1RK1 w - - 0 1
[ Nxe7 if Qxe7 d5 ]
c)
"SOS" vs "Chess Guru", London, 1994
2r4k/pprb3n/3p2R1/2qP4/7Q/P3N2P/1P2PP1K/1R6 w - - 0 1
[ Rc1 if Qxc1 Qd4+ mates ]
d)
"Novag" vs Daniel Dwyer, Perth, 1994
7r/2kbbprp/p2ppp2/4qP1Q/P1pNP3/2N3P1/1PP4P/1K1RR3 w - - 0 1
[ Nd5+ if Kd8 Nf3 or if exd5 exd5 Rg5 Qxf7 Rf8 Qxh7 ]
e)
"Novag" vs John Fletcher, Perth, 1994
r4rk1/pq2bp1p/1p4p1/3Nn3/2p5/P3P3/1PQ2PPP/R1BR2K1 w - - 0 1
[ Qe4 if Nc6 Nxe7+ ]
f)
"WChess" vs W Schnetzle, USA, 1994
r2q1rk1/6pp/p2pPb2/3Nn3/1p1N4/8/PPP3Q1/2KR3R w - - 0 1
[ e7 if Bxe7 Ne6 ]
g)
"Betsabe" vs "MChessPro", Valencia, 1994
r1b2rk1/ppbn1ppp/2p1pn2/q1Pp2B1/3P4/2N1P3/PPQNBPPP/R3K2R w - - 0 1
[ Nb3 if Qb4 a3 ]
Computers of The 80s; 1995-99
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