MESON Chess Problem Database
Problem Display
PID: 273793 (2K5/3p4/2k1n3/Q4B2/8/3N4/8/8 w - - 0 1)
Kovacevic, Marjan
Mat, 1972
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Qa6#
- 1...d6
- 2.Sb4#
- 1...Sd4
- Tries
- 1.Bh3?
- 1...Sc5
- 2.Qxc5#
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Qa6#
- 1...d6
- 2.Sb4#
- 1...Kd6!
- 1...Sc5
- 1.Be4+?
- 1...d5
- 2.Qa6#
- 1...Kd6!
- 1...d5
- 1.Bg4?
- 1...Sc5
- 2.Qxc5#
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Qa6#
- 1...d6
- 2.Sb4#
- 1...Kd6!
- 1...Sc5
- 1.Bxe6?
- threat
- 2.Qc5#
- 2.Qa6#
- 1...dxe6
- 2.Qc5#
- 1...d6
- 2.Sb4#
- 2.Bd5#
- 2.Bd7#
- 2.Qa6#
- 1...Kd6!
- threat
- 1.Bg6?
- 1...Sc5
- 2.Qxc5#
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Qa6#
- 1...d6
- 2.Sb4#
- 2.Be8#
- 1...Kd6!
- 1...Sc5
- 1.Bh7?
- 1...Sc5
- 2.Qxc5#
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Qa6#
- 1...d6
- 2.Sb4#
- 1...Kd6!
- 1...Sc5
- 1.Qb5+?
- 1...Kd6
- 2.Qxd7#
- 1...Kxb5!
- 1...Kd6
- 1.Bh3?
- Keys
- 1.Qb4!
- 1...Kd5
- 2.Be4#
- 1...Sc5
- 2.Qxc5#
- 1...Sd4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...d5
- 2.Se5#
- 1...d6
- 2.Qb7#
- 1...Kd5
- 1.Qb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- P(c);SBLOCK::QAR2(B)
- P(c);SBLOCK::S(A)
- Tries
- Try
- B(C);
- Vars
- S(b);N_GUARD::QAR1(B),XS(b)
- S(b);N_GUARD::QAR1(B)
- P(c);SBLOCK::QAR2(B)
- P(c);SBLOCK::S(A)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- P(c);P_SPINP(c)::QAR2(B)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);
- Vars
- S(b);N_GUARD::QAR1(B),XS(b)
- S(b);N_GUARD::QAR1(B)
- P(c);SBLOCK::QAR2(B)
- P(c);SBLOCK::S(A)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);XS(b)
- Threat
- DUALS(2)
- Vars
- P(c);XB(C)::QAR1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);
- Vars
- S(b);N_GUARD::QAR1(B),XS(b)
- S(b);N_GUARD::QAR1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);
- Vars
- S(b);N_GUARD::QAR1(B),XS(b)
- S(b);N_GUARD::QAR1(B)
- P(c);SBLOCK::QAR2(B)
- P(c);SBLOCK::S(A)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(a);OGATE,P-FLIGHT::QAR1(B),XP(c)
- Refutation
- K(a);S_FLIGHT,XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(a);S_CUTP(c),S_FLIGHT::B(C)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(b);N_GUARD::QAR1(B)
- P(c);SBLOCK::S(A)
- P(c);SBLOCK::QAB1(B)
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).