MESON Chess Problem Database

Problem Display
PID: 99630 (8/6Q1/8/8/4pp2/5k2/6p1/4K1R1 w - - 0 1)

Zilahi, Zoltan

Magyar Sakkvilag, 1926

8/6Q1/8/8/4pp2/5k2/6p1/4K1R1

#2

3 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qc3#
    • 1...e3
      • 2.Qxg2#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qxg2#
      • 1...Kf2
        • 2.Qxg2#
      • 1...e3+!
    • 1.Qg5?
      • 1...e3
        • 2.Qxg2#
      • 1...Ke3!
    • 1.Qg6?
      • 1...e3
        • 2.Qxg2#
      • 1...Ke3!
    • 1.Qg8?
      • 1...e3
        • 2.Qxg2#
      • 1...Ke3!
  • Keys
    • 1.Rxg2!
      • 1...Ke3
        • 2.Qc3#
      • 1...e3
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(C)
    • P(c);SBLOCK::QAB1(C),XP(a)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAB1(C),XP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(C),XP(a)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C),XP(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(d)
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(B);XP(a)
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • P(c);OGATEB,SBLOCK::QAB(C)
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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).