MESON Chess Problem Database

Problem Display
PID: 47759 (8/8/7Q/1p3K2/p4B2/3k4/Rr1NN3/8 w - - 0 1)

Glisic, Dejan I

StrateGems, 2003

8/8/7Q/1p3K2/p4B2/3k4/Rr1NN3/8

#2

6 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qh3+?
      • 1...Kxe2
        • 2.Qf1#
      • 1...Kc2!
    • 1.Qc6?
      • threat
        • 2.Qe4#
      • 1...Rb4
        • 2.Qf3#
      • 1...Kxe2!
    • 1.Qe6?
      • threat
        • 2.Qe4#
      • 1...Rb4
        • 2.Qe3#
      • 1...Kc2!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4#
      • 1...Kc2
        • 2.Qb1#
      • 1...Kxe2
        • 2.Qf1#
      • 1...Rb4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • Refutation
        • K(b);P_SPINR(a),S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • R(a);::QAR2(F)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • R(a);::QAR1(F)
      • Refutation
        • K(b);P_SPINR(a),S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • K(b);P_SPINR(a),S_FLIGHT::QAB1(F)
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • R(a);::QAR2(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).