MESON Chess Problem Database
Problem Display
PID: 92933 (8/4pKp1/3pP1B1/N4n2/N2pk3/4Pp1p/5R1B/2Q5 w - - 0 1)
Asplund, Per Ivan Rune
Tidskrift for Schack, 1966
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Bxf5#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...Kd3
- Tries
- 1.Ke8?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...Kd5!
- 1...Kd3
- 1.Kf8?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...Kd5!
- 1...Kd3
- 1.Kg8?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...Kd5!
- 1...Kd3
- 1.Sc3+?
- 1...Kd3
- 2.Bxf5#
- 2.Qd2#
- 1...dxc3!
- 1...Kd3
- 1.Sc5+?
- 1...Kd5
- 2.Qc4#
- 2.e4#
- 1...dxc5!
- 1...Kd5
- 1.Sb3?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sbc5#
- 2.Sac5#
- 1...Kd5!
- 1...Kd3
- 1.Sc6?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...Kd5!
- 1...Kd3
- 1.Sb7?
- 1...Kd3
- 2.Bxf5#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sac5#
- 2.Sbc5#
- 1...Kd5!
- 1...Kd3
- 1.Bg3?
- 1...Kd3
- 2.Bxf5#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...h2!
- 1...Kd3
- 1.Bf4?
- 1...Kd3
- 2.Bxf5#
- 2.Qb1#
- 2.Qc2#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 2.Qc4#
- 1...d5
- 2.Sc5#
- 1...h2!
- 1...Kd3
- 1.Bxf5+?
- 1...Kd5
- 2.Sb6#
- 2.Qc4#
- 2.Qc6#
- 2.e4#
- 1...Kxf5!
- 1...Kd5
- 1.Ra2?
- 1...Kd3
- 2.Bxf5#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...f2!
- 1...Kd3
- 1.Rb2?
- 1...Kd3
- 2.Bxf5#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...f2!
- 1...Kd3
- 1.Qd2?
- threat
- 2.Qxd4#
- 1...dxe3
- 2.Sc3#
- 1...d3
- 2.Sc3#
- 1...Kd5!
- threat
- 1.Qe1?
- 1...Kd3
- 2.Bxf5#
- 1...Kd5
- 2.e4#
- 1...d3
- 2.Sc3#
- 1...d5
- 2.Sc5#
- 1...dxe3!
- 1...Kd3
- 1.Qc2+?
- 1...Kxe3
- 2.Sc4#
- 1...Kd5
- 2.Sb6#
- 2.Qxf5#
- 2.Qc6#
- 2.e4#
- 1...d3!
- 1...Kxe3
- 1.Qc3?
- threat
- 2.Qxd4#
- 1...Kd5
- 2.Qc6#
- 1...dxe3
- 2.Qc4#
- 1...d3
- 2.Qd4#
- 1...dxc3!
- threat
- 1.Ke8?
- Keys
- 1.Qd1!
- threat
- 2.Qxd4#
- 1...Kxe3
- 2.Qxf3#
- 1...Kd5
- 2.Qxf3#
- 1...dxe3
- 2.Sc3#
- 1...d3
- 2.Qxf3#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- K(d);S_FLIGHT::B(H),XS(e)
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- K(I);P-FLIGHT
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- K(I);S_FLIGHT
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- S(E);CHECK
- Refutation
- P(c);XS(E)
- Try
- S(E);CHECK
- Refutation
- P(f);XS(E)
- Try
- S(F);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- S(F);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- S(F);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT
- Try
- B(C);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- P(b);
- Try
- B(C);
- Vars
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,XP(D)::QAR2(A)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- P(b);
- Try
- B(H);CHECK,XS(e)
- Refutation
- K(d);P_SPINP(a),S_FLIGHT,XB(H)
- Try
- R(B);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- P(a);
- Try
- Q(A);
- Threat
- QAR1(A),XP(c)
- Vars
- P(c);N_GUARD,XP(D)::S(E)
- P(c);N_GUARD::S(E)
- Refutation
- K(d);N_SPINS(e),P_SPINP(c),S_FLIGHT
- Try
- Q(A);
- Vars
- K(d);S_FLIGHT::B(H),XS(e)
- K(d);N_SPINS(e),OGATE,S_FLIGHT::P(D)
- P(c);N_GUARD,SBLOCK::S(E)
- P(f);N_GUARD,SBLOCK::S(E)
- Refutation
- P(c);P_SPINP(c),XP(D)
- Try
- Q(A);CHECK
- Vars
- K(d);N_SPINS(e),P-FLIGHT,XP(D)::S(F)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(A);
- Threat
- QAR1(A),XP(c)
- Vars
- K(d);N_SPINS(e),S_FLIGHT::QAB1(A)
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(A)
- P(c);::QAR1(A)
- Refutation
- P(c);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAR1(A),XP(c)
- Vars
- K(d);N_SPINS(e),P-FLIGHT,XP(D)::QAR1(A),XP(a)
- K(d);N_SPINS(e),P_SPINP(c),S_FLIGHT::QAB(A),XP(a)
- P(c);N_GUARD,SBLOCK,XP(D)::S(E)
- P(c);SBLOCK::QAB1(A),XP(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).