MESON Chess Problem Database

Problem Display
PID: 271844 (8/2K5/3N4/8/1k6/pN6/Q2P4/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Sachmatija, 2023

8/2K5/3N4/8/1k6/pN6/Q2P4/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sa1?
      • 1...Ka5
        • 2.Qxa3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ka4!
    • 1.Sc1?
      • 1...Ka5
        • 2.Qxa3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ka4!
    • 1.Sd4?
      • 1...Ka5
        • 2.Qxa3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ka4!
    • 1.Sa5?
      • 1...Kxa5
        • 2.Qxa3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ka4!
    • 1.Qc2?
      • threat
        • 2.Qc4#
      • 1...Ka4
        • 2.Qc4#
      • 1...a2!
  • Keys
    • 1.Sc5!
      • 1...Ka5
        • 2.Qxa3#
      • 1...Kxc5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR2(A),XP(a)
        • K(b);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR2(A),XP(a)
        • K(b);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR2(A),XP(a)
        • K(b);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT,XS(C)::QAR2(A),XP(a)
        • K(b);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
  • Actual
    • S(C);
    • Vars
      • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR2(A),XP(a)
      • K(b);N_GUARD,S_FLIGHT,XS(C)::QAR1(A)
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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).