MESON Chess Problem Database

Problem Display
PID: 120837 (r6q/3p1pp1/3Q4/1p1N3p/3k4/1B1P4/5N2/2b3K1 w - - 0 1)

Loepert, Fritz

Mate, 1982

r6q/3p1pp1/3Q4/1p1N3p/3k4/1B1P4/5N2/2b3K1

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6+?
      • 1...Kc5
        • 2.Se4#
        • 2.Qb6#
        • 2.d4#
      • 1...gxf6!
  • Keys
    • 1.Sd1!
      • threat
        • 2.S5c3#
        • 2.S5e3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Be3+
        • 2.S5xe3#
      • 1...Kxd3
        • 2.S5c3#
      • 1...Qh6
        • 2.Sf6#
      • 1...Qb8
        • 2.Sc7#
      • 1...Qf8
        • 2.Se7#
      • 1...Ra6
        • 2.Sb6#
      • 1...Ba3
        • 2.Sb4#
      • 1...Bf4
        • 2.Sxf4#
      • 1...b4
        • 2.S5c3#
        • 2.S5e3#
        • 2.Sxb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...f6
        • 2.S5c3#
        • 2.S5e3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sxf6#
        • 2.Sc7#
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • P(g);XQ(F)
  • Actual
    • S(B);
    • Threat
      • DUALS(8)
    • Vars
      • B(a);CHECK::QAR(F)+S(E),XB(a)
      • K(b);P-FLIGHT,XP(D)::QAR(F)+S(E)
      • Q(i);::QAR(F)+S(E)
      • R(h);::QAR(F)+S(E)
      • B(a);::QAR(F)+S(E)
      • B(a);::QAR(F)+S(E),XB(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).