MESON Chess Problem Database

Problem Display
PID: 18970 (K2N1b2/4p3/2R2pn1/4kp2/2P1N3/2P2b2/8/4Q3 w - - 0 1)

Goldschmeding, Cornelis

4th Prize, Tijdschrift vd KNSB, 1959

K2N1b2/4p3/2R2pn1/4kp2/2P1N3/2P2b2/8/4Q3

#2

7 + 7

3749 FIDE Album (1959-1961) 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Sf7#
    • 1...f4
      • 2.Rc5#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Sf7#
        • 2.Rc5#
        • 2.Re6#
      • 1...Bxe4
        • 2.Sf7#
      • 1...f4
        • 2.Rc5#
      • 1...Sf4
        • 2.Sf7#
        • 2.Qd4#
      • 1...Sh8
        • 2.Rc5#
        • 2.Re6#
      • 1...e6
        • 2.Sf7#
        • 2.Rxe6#
      • 1...fxe4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Re6#
      • 1...Kxe4
        • 2.Qd4#
      • 1...Bxe4
        • 2.Sf7#
      • 1...fxe4
        • 2.Rc5#
      • 1...f4
        • 2.Qd5#
      • 1...Sf4
        • 2.Qd4#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::S(G)
    • P(c);SBLOCK::R(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);P_PINR(E),P_SPINB(a),XS(D)::S(G)
        • P(c);::R(E)
      • Refutation
        • P(c);P_SPINP(c),XS(D)
  • Actual
    • Q(A);
    • Threat
      • R1(E)
    • Vars
      • K(b);P-FLIGHT,XS(D)::QAR1(A)
      • B(a);P_PINR(E),SBLOCK,XS(D)::S(G)
      • P(c);SBLOCK,XS(D)::R(E)
      • P(c);SBLOCK::QAR1(A)
      • S(e);SBLOCK::QAB1(A)
      • P(f);::R1(E),XP(f)
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).