MESON Chess Problem Database

Problem Display
PID: 261866 (KB6/b4Q2/4r3/3k4/R1r2P2/1NR5/B7/8 w - - 0 1)

Lipton, Michael

Europe Echecs, 1960

KB6/b4Q2/4r3/3k4/R1r2P2/1NR5/B7/8

#2

8 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qxe6#
    • 1...Kc6
      • 2.Qb7#
    • 1...Re4
      • 2.Sd4#
    • 1...Rc6
      • 2.Sc5#
  • Tries
    • 1.Qb7+?
      • 1...Rcc6
        • 2.Sa1#
        • 2.Sc1#
        • 2.Sd2#
        • 2.Sa5#
        • 2.Sc5#
      • 1...Rec6!
    • 1.Qd7+?
      • 1...Ke4
        • 2.Bb1#
        • 2.Qxe6#
        • 2.Qd3#
      • 1...Rd6!
  • Keys
    • 1.f5!
      • threat
        • 2.Qxe6#
      • 1...Ke4
        • 2.Qxe6#
      • 1...Kc6
        • 2.Qb7#
      • 1...Re4
        • 2.Sd4#
      • 1...Rc6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,N_SPINR(c),P_SPINR(a),S_FLIGHT::QAR2(F),XR(c)
    • K(b);N_SPINR(c),P_SPINR(a),S_CUTR(c),S_FLIGHT::QAB1(F)
    • R(a);SBLOCK::B(A)+S(B)
  • Tries
    • Try
      • Q(F);CHECK,N_PINR(c)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • Q(F);CHECK,N_PINR(c)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • P(E);
    • Threat
      • QAB1(F),XR(c)
    • Vars
      • K(b);N_SPINR(c),P_SPINR(a),S_FLIGHT::QAR2(F),XR(c)
      • K(b);N_SPINR(c),P_SPINR(a),S_CUTR(c),S_FLIGHT::QAB1(F)
      • R(a);SBLOCK::B(A)+S(B)
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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).