MESON Chess Problem Database

Problem Display
PID: 18385 (1Q6/8/8/K2p4/3kN3/8/5R2/4N3 w - - 0 1)

Groeneveld, Cornelis

Problem (Zagreb), 1955

1Q6/8/8/K2p4/3kN3/8/5R2/4N3

#2

5 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb4#
    • 1...Kxe4
      • 2.Qf4#
  • Tries
    • 1.Sc3?
      • 1...Kxc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc5!
    • 1.Sg3?
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc5!
    • 1.Sc5?
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kxc5!
    • 1.Sg5?
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc5!
    • 1.Sf6?
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc5!
    • 1.Re2?
      • 1...Kc4
        • 2.Qb4#
      • 1...dxe4!
    • 1.Rf3?
      • 1...Kc4
        • 2.Qb4#
      • 1...Kxe4
        • 2.Qf4#
      • 1...dxe4!
    • 1.Qg3?
      • 1...Kc4
        • 2.Qc3#
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qf4#
      • 1...dxe4!
    • 1.Qd6?
      • 1...Kc4
        • 2.Qb4#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke3!
  • Keys
    • 1.Sd2!
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(a);P-FLIGHT::QAR1(E)
    • K(a);OGATEB,P-FLIGHT,XS(C)::QAR1(E)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • P(b);XS(C)
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);XS(C)
    • Try
      • Q(E);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);XS(C)
    • Try
      • Q(E);P_PINP(b)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(E)
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
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).