MESON Chess Problem Database

Problem Display
PID: 136815 (3Rb3/p2p1N2/5n1Q/8/1N1kp3/6p1/1P3r2/1KR2nBB w - - 0 1)

Groeneveld, Cornelis

Die Welt, 1999

3Rb3/p2p1N2/5n1Q/8/1N1kp3/6p1/1P3r2/1KR2nBB

#2

9 + 9

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2+
      • 2.Qxd2#
    • 1...Sh2
      • 2.Qd2#
  • Tries
    • 1.Bxf2+?
      • 1...Se3
        • 2.Bxe3#
        • 2.Qxe3#
        • 2.Qxf6#
      • 1...e3
        • 2.Qxf6#
      • 1...gxf2!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qxf6#
      • 1...Sd2+
        • 2.Qxd2#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sg4
        • 2.Qd6#
      • 1...Sd5
        • 2.Sc2#
      • 1...Sh5
        • 2.Qd6#
      • 1...Sh7
        • 2.Qd6#
      • 1...Sg8
        • 2.Qd6#
      • 1...e3
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(a);CHECK,N_GUARD::QAR2(G),XS(a)
    • S(a);N_GUARD::QAR2(G)
  • Tries
    • Try
      • B(C);CHECK,XR(b)
      • Vars
        • P(e);N_SPINP(h),P_SPINP(e)::QAB(G),XS(f)
      • Refutation
        • P(c);XB(C)
  • Actual
    • R(B);
    • Threat
      • QAB(G),XS(f)
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(G),XS(a)
      • S(a);N_GUARD,N_SPINR(b)::QAB1(G),XS(a)
      • S(f);OGATE::QAR2(G)
      • S(f);N_SPINP(h),SBLOCK::S(F)
      • P(e);N_SPINR(b)::S(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).