MESON Chess Problem Database

Problem Display
PID: 67456 (7q/5n1p/2n2R2/2QNk3/3pP1R1/6K1/5Pp1/1b4B1 w - - 0 1)

Kovacevic, Marjan

Sp. Prize, Mat Plus, 1995

7q/5n1p/2n2R2/2QNk3/3pP1R1/6K1/5Pp1/1b4B1

#2

8 + 8

5418 FIDE Album (1995-1997) (Annexe) 2004
5929 Mat Plus Special Issue 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6
      • 2.Sc7#
    • 1...Bxe4
      • 2.f4#
    • 1...Sb4
      • 2.Qe7#
    • 1...Sa5
      • 2.Qe7#
    • 1...Sa7
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...Sb8
      • 2.Qe7#
    • 1...Sg5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sh6
      • 2.Qd6#
    • 1...Sd8
      • 2.Qd6#
  • Tries
    • 1.Kxg2?
      • threat
        • 2.Bh2#
      • 1...Qxf6
        • 2.Sc7#
      • 1...Bxe4+!
    • 1.Kh3?
      • threat
        • 2.Bh2#
      • 1...Qxf6
        • 2.Sc7#
      • 1...Sg5+!
    • 1.Sf4+?
      • 1...Kxe4
        • 2.Qd5#
        • 2.Qf5#
        • 2.f3#
      • 1...Kxf6!
    • 1.Qxc6?
      • threat
        • 2.Rf5#
        • 2.Re6#
        • 2.Qe6#
      • 1...Qxf6
        • 2.Qxf6#
      • 1...Bxe4
        • 2.Qe6#
        • 2.f4#
      • 1...d3
        • 2.Qc3#
      • 1...Qe8
        • 2.Rf5#
        • 2.Qxe8#
      • 1...Sg5
        • 2.Rf5#
        • 2.Qd6#
        • 2.Qc7#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sh6
        • 2.Re6#
        • 2.Qd6#
        • 2.Qe6#
        • 2.Qc7#
      • 1...Sd8
        • 2.Rf5#
        • 2.Qd6#
        • 2.Qc7#
      • 1...Qc8!
  • Keys
    • 1.Kf3!
      • threat
        • 2.Bh2#
      • 1...Qxf6+
        • 2.Sf4#
      • 1...Bxe4+
        • 2.Rxe4#
      • 1...Sg5+
        • 2.Rxg5#

This is a version

There are these versions: 75544

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(h);SBLOCK,XR(H)::QAR(F)+S(G)
    • B(a);SBLOCK,XP(D)::P(B)
    • S(e);N_GUARD::QAR2(F)
    • S(e);N_GUARD::QAR2(F),XS(e)
    • S(f);N_GUARD::QAB1(F)
    • S(f);N_GUARD::QAB1(F),XS(f)
  • Tries
    • Try
      • K(C);P-FLIGHT,XP(b)
      • Threat
        • B(A)
      • Vars
        • Q(h);SBLOCK,XR(H)::QAR(F)+S(G)
      • Refutation
        • B(a);CHECK,XP(D)
    • Try
      • K(C);P-FLIGHT
      • Threat
        • B(A)
      • Vars
        • Q(h);SBLOCK,XR(H)::QAR(F)+S(G)
      • Refutation
        • S(f);CHECK
    • Try
      • S(G);CHECK
      • Refutation
        • K(d);S_FLIGHT,XR(H)
    • Try
      • Q(F);XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • Q(h);OGATE,XR(H)::QAB1(F),XQ(h)
        • P(c);OGATEB::QAB(F)
        • S(f);N_GUARD::QAB1(F),XS(f)
      • Refutation
        • Q(h);
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • B(A)
    • Vars
      • Q(h);CHECK,SBLOCK,XR(H)::QAR(F)+S(G)
      • B(a);CHECK,OGATE,XP(D)::R1(E),XB(a)
      • S(f);CHECK,N_GUARD::R(E),XS(f)
HTML5 logo

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).