MESON Chess Problem Database

Problem Display
PID: 57811 (8/8/3pQ3/2kp4/1Rp5/P7/N1K5/8 w - - 0 1)

Giorgetti, Fosco

Telescacco 92, 2000

8/8/3pQ3/2kp4/1Rp5/P7/N1K5/8

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qc8#
    • 1...c3
      • 2.Qc8#
    • 1...d4
      • 2.Qxc4#
  • Tries
    • 1.Kb1?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...Kd4!
    • 1.Kc1?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...Kd4!
    • 1.Kd1?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...Kd4!
    • 1.Kd2?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kc6
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...c3+!
    • 1.Kc3?
      • threat
        • 2.Qc8#
      • 1...Kc6
        • 2.Qc8#
      • 1...d4+!
    • 1.Sc3?
      • threat
        • 2.Qxd5#
      • 1...Kc6
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
        • 2.Qd5#
        • 2.Qc8#
      • 1...Kd4!
    • 1.Qg4?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4!
    • 1.Qf5?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...Kd4!
    • 1.Qd7?
      • 1...c3
        • 2.Qb5#
        • 2.Qc8#
        • 2.Qc7#
      • 1...d4
        • 2.Rb5#
        • 2.Qb5#
      • 1...Kd4!
    • 1.Qg8?
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...Kd4!
    • 1.Qe8?
      • 1...d4
        • 2.Rb5#
        • 2.Qb5#
      • 1...c3
        • 2.Qb5#
        • 2.Qc8#
      • 1...Kd4!
    • 1.a4?
      • 1...Kc6
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#
      • 1...c3
        • 2.Qc8#
      • 1...Kd4!
  • Keys
    • 1.Sc1!
      • 1...Kd4
        • 2.Sb3#
      • 1...Kc6
        • 2.Qc8#
      • 1...c3
        • 2.Qc8#
      • 1...d4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
    • P(a);::QAR(E)
    • P(c);OGATE::QAR1(E),XP(a)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(a);::QAR(E)
        • P(c);OGATE::QAR1(E),XP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(a);::QAR(E)
        • P(c);OGATE::QAR1(E),XP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(a);::QAR(E)
        • P(c);OGATE::QAR1(E),XP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB1(E)
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(c);OGATE::QAR1(E),XP(a)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR(E)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
      • Refutation
        • P(c);CHECK
    • Try
      • S(A);
      • Threat
        • QAR1(E),XP(c)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);P-FLIGHT::QAR2(E)
        • P(a);::QAR(E)
      • Refutation
        • P(c);
    • Try
      • Q(E);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR2(E)
        • P(a);::QAR(E)
      • Refutation
        • K(b);N_SPINP(c),P_SPINP(a),S_FLIGHT
    • Try
      • Q(E);
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);P-FLIGHT::QAR2(E)
        • P(a);::QAR(E)
        • P(c);OGATE::QAR1(E),XP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(E);
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(c);OGATE::QAR1(E),XP(a)
        • P(a);::QAR(E)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • S(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::S(A)
      • K(b);P-FLIGHT,P_SPINP(d)::QAR2(E)
      • P(a);::QAR(E)
      • P(c);OGATE::QAR1(E),XP(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).