MESON Chess Problem Database

Problem Display
PID: 242072 (8/2K1k2B/3NPr2/8/7Q/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/2K1k2B/3NPr2/8/7Q/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qe4#
    • 1...Kf8
      • 2.Qxf6#
  • Tries
    • 1.Bb1?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kf8!
    • 1.Bc2?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kf8!
    • 1.Bd3?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kf8!
    • 1.Bg6?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Kf8!
    • 1.Qg5?
      • 1...Kf8
        • 2.Qxf6#
      • 1...Kxe6!
  • Keys
    • 1.Kc6!
      • 1...Kxe6
        • 2.Qe1#
        • 2.Qe4#
      • 1...Kd8
        • 2.Qxf6#
      • 1...Kf8
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINR(a),OGATEB,P-FLIGHT,XP(C)::QAR2(A)
    • K(b);N_SPINR(a),S_FLIGHT::QAR2(A),XR(a)
  • Tries
    • Try
      • B(E);
      • Vars
        • K(b);N_SPINR(a),OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_SPINR(a),OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_SPINR(a),OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_SPINR(a),OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAR2(A),XR(a)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT,XP(C)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAB(A),XR(a)
      • K(b);N_SPINR(a),S_FLIGHT::QAR2(A),XR(a)
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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).