MESON Chess Problem Database
Problem Display
PID: 59332 (1BB5/6p1/6P1/p2NP2P/K2Pkp1P/2P1bRP1/Q7/1N4R1 w - - 0 1)
Kopnin, Aleksey Grigorevich
4th HM., Prace, 1965
#2
15 + 5
| 3772 | FIDE Album (1965-1967) | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Kd3
- Tries
- 1.Kxa5?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Sd2+?
- 1...Kd3
- 2.Ba6#
- 1...Bxd2!
- 1...Kd3
- 1.Sb4?
- threat
- 2.Qd5#
- 1...Kxf3
- 2.Qg2#
- 1...axb4!
- threat
- 1.Sxf4?
- threat
- 2.Qd5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxf4!
- threat
- 1.Sb6?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 2.Qd5#
- 1...Bxd4
- 2.Sd2#
- 2.Qd5#
- 1...Bc1
- 2.Qd5#
- 1...Bd2
- 2.Sxd2#
- 2.Qd5#
- 1...Bf2
- 2.Sd2#
- 2.Qd5#
- 1...fxg3!
- 1...Kd3
- 1.Sf6+?
- 1...Kd3
- 2.Bf5#
- 2.Ba6#
- 2.Rd1#
- 1...Kxf3
- 2.Bg4#
- 2.Bb7#
- 2.Qg2#
- 1...gxf6!
- 1...Kd3
- 1.Sc7?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 2.Qd5#
- 1...Bxd4
- 2.Qd5#
- 1...Bc1
- 2.Qd5#
- 1...Bd2
- 2.Sxd2#
- 2.Qd5#
- 1...Bf2
- 2.Sd2#
- 2.Qd5#
- 1...fxg3!
- 1...Kd3
- 1.Se7?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 2.Bb7#
- 2.Qd5#
- 1...Bxd4
- 2.Sd2#
- 2.Bb7#
- 2.Qd5#
- 1...Bc1
- 2.Bb7#
- 2.Qd5#
- 1...Bd2
- 2.Sxd2#
- 2.Bb7#
- 2.Qd5#
- 1...Bf2
- 2.Sd2#
- 2.Bb7#
- 2.Qd5#
- 1...fxg3!
- 1...Kd3
- 1.Bd6?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Bc7?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Bh3?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Bg4?
- 1...Kd3
- 2.Bf5#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Bf5+?
- 1...Kxf3
- 2.Qg2#
- 1...Kxf5!
- 1...Kxf3
- 1.Be6?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Bd7?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Rxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Re1?
- 1...Kd3
- 2.Bf5#
- 1...fxg3
- 2.Rexe3#
- 2.Rfxe3#
- 1...Kxf3!
- 1...Kd3
- 1.Rgf1?
- 1...Kd3
- 2.Bf5#
- 1...Bxd4
- 2.Sd2#
- 1...fxg3
- 2.Bf5#
- 2.Rxe3#
- 1...Bg1
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Rxf4+?
- 1...Kd3
- 2.Bf5#
- 2.Ba6#
- 1...Bxf4!
- 1...Kd3
- 1.Qc2+?
- 1...Kxf3
- 2.Qg2#
- 1...Kxd5!
- 1...Kxf3
- 1.g4?
- 1...Kd3
- 2.Bf5#
- 1...Kxf3
- 2.Qg2#
- 1...Bxg1
- 2.Sd2#
- 1...Bxd4
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc1!
- 1...Kd3
- 1.Kxa5?
- Keys
- 1.Bb7!
- 1...Kd3
- 2.Sxf4#
- 1...Kxf3
- 2.Sf6#
- 1...Kf5
- 2.Sxe3#
- 1...Bxg1
- 2.Se7#
- 1...Bxd4
- 2.Se7#
- 1...fxg3
- 2.Sb4#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Bf2
- 2.Se7#
- 1...Kd3
- 1.Bb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- Tries
- Try
- K(G);P-FLIGHT,XP(d)
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD,P_PINP(D)::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- S(A);CHECK
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- Refutation
- B(a);XS(A)
- Try
- S(J);
- Threat
- QAB1(C)
- Vars
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- Refutation
- P(d);XS(J)
- Try
- S(J);XP(c)
- Threat
- QAB1(C)
- Vars
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- Refutation
- B(a);XS(J)
- Try
- S(J);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);::QAB1(C)
- Refutation
- P(c);XP(F)
- Try
- S(J);CHECK
- Refutation
- P(e);XS(J)
- Try
- S(J);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);XP(H)::QAB1(C)
- B(a);::QAB1(C)
- Refutation
- P(c);XP(F)
- Try
- S(J);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- Refutation
- P(c);XP(F)
- Try
- B(N);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- B(N);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- B(O);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- B(O);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- B(O);CHECK
- Vars
- K(b);S_FLIGHT,XR(E)::QAB1(C)
- Refutation
- K(b);P_SPINP(c),S_FLIGHT,XB(O)
- Try
- B(O);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- B(O);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- P(c);N_GUARD,XP(F)::R1(E),XB(a)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(B);P_PINB(a)
- Vars
- K(b);S_FLIGHT::B(O)
- Refutation
- K(b);N_SPINB(a),S_FLIGHT,XR(E)
- Try
- R(B);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- B(a);N_GUARD,XP(H)::S(A)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);
- Try
- R(E);CHECK,XP(c)
- Refutation
- B(a);XR(E)
- Try
- Q(C);CHECK
- Vars
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- Refutation
- K(b);S_FLIGHT,XS(J)
- Try
- P(F);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::B(O)
- K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(C)
- B(a);N_GUARD,XR(B)::S(A)
- B(a);N_GUARD,XP(H)::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- Actual
- B(O);
- Vars
- K(b);P_SPINB(a),S_FLIGHT::S(J),XP(c)
- K(b);S_FLIGHT,XR(E)::B(O)+S(J)
- K(b);P_SPINP(c),S_FLIGHT::S(J),XB(a)
- B(a);XR(B)::B(O)+S(J)
- B(a);XP(H)::B(O)+S(J)
- P(c);XP(F)::B(O)+S(J)
- B(a);::B(O)+S(J)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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