MESON Chess Problem Database

Problem Display
PID: 51641 (7B/3Q4/3np1R1/1P4r1/4kNNR/4p1p1/2P3K1/1B6 w - - 0 1)

Kovacevic, Marjan

3rd Prize, The Problemist, 2003/II

7B/3Q4/3np1R1/1P4r1/4kNNR/4p1p1/2P3K1/1B6

#2

10 + 6

56 The Problemist 2005

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.c4#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Rd5
        • 2.Sh6#
      • 1...Sc4
        • 2.Qd3#
        • 2.c3#
      • 1...Rxb5!
    • 1.Qc6+?
      • 1...Kxf4
        • 2.Qf3#
      • 1...Kf5
        • 2.Sxe3#
        • 2.Sh6#
        • 2.Rf6#
      • 1...Rd5!
    • 1.Qxe6+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Kxf4!
  • Keys
    • 1.Sd5!
      • threat
        • 2.c4#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Rxd5
        • 2.Sh6#
      • 1...exd5
        • 2.Sf2#
      • 1...Re5
        • 2.Sgxe3#
      • 1...Sc4
        • 2.c3#
      • 1...e5
        • 2.Sgf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • B(A)+P(B)
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT::QAB1(I)
        • K(c);P_SPINP(f),S_FLIGHT::QAB1(I),XP(f)
        • R(d);N_GUARD,SBLOCK::R(F)+S(E)
      • Refutation
        • R(d);XP(G)
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT,XS(D)::QAR1(I)
      • Refutation
        • R(d);P_SPINR(d)
    • Try
      • Q(I);CHECK,XP(f)
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::QAR1(I),XR(d)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • B(A)+P(B)
    • Vars
      • K(c);OGATEB,P_SPINS(e),S_FLIGHT,XS(D)::QAB1(I)
      • K(c);P_SPINP(f),S_FLIGHT::QAB1(I),XP(f)
      • R(d);N_GUARD,SBLOCK,XS(D)::R(F)+S(E)
      • P(f);SBLOCK,XS(D)::R(F)+S(E),DCHECK
      • R(d);N_GUARD::R(F)+S(E),XP(a)
      • S(e);::B(A)+P(B)
      • P(f);SBLOCK::R(F)+S(E),DCHECK
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).