MESON Chess Problem Database

Problem Display
PID: 57455 (1NR2Q2/1p2p3/1p1k1q1R/8/1K6/2N5/8/8 w - - 0 1)

Weenink, Henri Gerard Maria

1st Prize, Tijdschrift vd NSB, 1924

1NR2Q2/1p2p3/1p1k1q1R/8/1K6/2N5/8/8

#2

6 + 5

16055 HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) 1932
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1953

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Qf4#
  • Tries
    • 1.Qxf6+?
      • 1...e6
        • 2.Qxe6#
      • 1...exf6!
    • 1.Qf7?
      • threat
        • 2.Qd5#
      • 1...Qe6
        • 2.Rxe6#
        • 2.Qxe6#
        • 2.Qf4#
      • 1...e5
        • 2.Se4#
        • 2.Sb5#
        • 2.Rxf6#
        • 2.Rd8#
        • 2.Qxf6#
        • 2.Qd7#
      • 1...e6
        • 2.Qc7#
      • 1...Ke5!
    • 1.Qd8+?
      • 1...Ke6
        • 2.Qd5#
      • 1...Ke5!
  • Keys
    • 1.Re8!
      • threat
        • 2.Qxe7#
      • 1...Ke5
        • 2.Qxf6#
      • 1...Ke6
        • 2.Qxf6#
      • 1...Kc7
        • 2.Sb5#
      • 1...Qe6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATE::QAB(F)
  • Tries
    • Try
      • Q(F);CHECK,N_PINP(e),XQ(c)
      • Vars
        • P(e);P_SPINP(e)::QAR1(F),XP(e)
      • Refutation
        • P(e);P_SPINP(e),XQ(F)
    • Try
      • Q(F);N_PINP(e)
      • Threat
        • QAR1(F)
      • Vars
        • P(e);N_SPINQ(c),OGATE,SBLOCK::QAB1(F)
      • Refutation
        • K(b);N_SPINQ(c),S_FLIGHT
    • Try
      • Q(F);CHECK,N_PINP(e)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINQ(c),S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • QAB1(F),XP(e)
    • Vars
      • K(b);N_SPINQ(c),S_FLIGHT::QAB1(F),XQ(c)
      • K(b);P-FLIGHT::QAR1(F),XQ(c)
      • K(b);N_SPINP(e),N_SPINQ(c),S_FLIGHT::S(A)
      • Q(c);OGATE::QAB(F)
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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).