MESON Chess Problem Database

Problem Display
PID: 109305 (1K3N2/5Pp1/2k3r1/1p1nP3/1p1B4/5q2/1p4Rn/1Q5B w - - 0 1)

Salai (Snr), Ladislav

Umenie 64, 2002

1K3N2/5Pp1/2k3r1/1p1nP3/1p1B4/5q2/1p4Rn/1Q5B

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Rxg6#
    • 1...Qe2
      • 2.Rxg6#
    • 1...Qg4
      • 2.Rc2#
    • 1...Qh5
      • 2.Rc2#
    • 1...Qa3
      • 2.Rxg6#
    • 1...Qb3
      • 2.Rxg6#
    • 1...Qc3
      • 2.Rxg6#
    • 1...Qe3
      • 2.Rxg6#
    • 1...Qf4
      • 2.Rc2#
    • 1...Qf6
      • 2.Rc2#
    • 1...Qxf7
      • 2.Rc2#
  • Tries
    • 1.Rxg6+?
      • 1...Qf6
        • 2.Qc2#
      • 1...Sf6!
    • 1.Qc2+?
      • 1...Qc3
        • 2.Rxg6#
      • 1...Sc3!
    • 1.Qxg6+?
      • 1...Qf6
        • 2.Rc2#
      • 1...Sf6!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qa8#
      • 1...Qxf7
        • 2.Rc2#
      • 1...Qa3
        • 2.Rxg6#
      • 1...Sb6
        • 2.Rxg6#
      • 1...Sc7
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(c);N_GUARD,S_CUTS(f)::R(C),XR(h)
    • Q(c);N_GUARD,S_CUTS(f)::R(C)
    • Q(c);N_GUARD,P_PINP(E),S_CUTS(f)::R(C)
    • Q(c);N_GUARD,S_CUTS(f),XP(F)::R(C)
  • Tries
    • Try
      • R(C);CHECK,XR(h)
      • Vars
        • Q(c);P_SPINQ(c),P_SPINS(f)::QAR(A)
      • Refutation
        • S(f);P_SPINQ(c),P_SPINS(f)
    • Try
      • Q(A);CHECK
      • Vars
        • Q(c);P_SPINQ(c)::R(C),XR(h)
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • Q(A);CHECK,XR(h)
      • Vars
        • Q(c);P_SPINQ(c)::R(C)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • Q(c);N_GUARD,S_CUTS(f),XP(F)::R(C)
      • Q(c);N_GUARD,S_CUTS(f)::R(C),XR(h)
      • S(f);N_GUARD,S_CUTQ(c)::R(C),XR(h)
      • S(f);N_GUARD,S_CUTQ(c)::R(C)
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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).