MESON Chess Problem Database

Problem Display
PID: 120040 (3kN1Rn/pB1bp3/2p1p3/4p3/nB1Q4/8/8/4K3 w - - 0 1)

von Wardener, Friedrich Freiherr

La Strategie, 1900

3kN1Rn/pB1bp3/2p1p3/4p3/nB1Q4/8/8/4K3

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Ba5#
    • 1...Sc3
      • 2.Ba5#
    • 1...Sc5
      • 2.Ba5#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qxe7#
      • 1...Sxc5
        • 2.Ba5#
      • 1...Sg6!
    • 1.Qd6?
      • threat
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Qc7#
        • 2.Qxe7#
      • 1...Sc5
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Ba5#
        • 2.Qc7#
      • 1...Sg6
        • 2.Qc7#
      • 1...c5
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Qc7#
      • 1...exd6!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Bc7#
      • 1...Bxe8
        • 2.Bxe5#
      • 1...exd6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::B(B)
  • Tries
    • Try
      • Q(C);N_PINB(f)
      • Threat
        • QAB1(C),XP(g)
      • Vars
        • S(a);N_GUARD,XQ(C)::B(B)
      • Refutation
        • S(i);
    • Try
      • Q(C);
      • Threat
        • DUALS(5)
      • Vars
        • S(i);::QAB1(C)
      • Refutation
        • P(g);N_SPINB(f),XQ(C)
  • Actual
    • B(B);N_PINB(f)
    • Threat
      • B(B)
    • Vars
      • B(f);OGATEB,P_SPINB(f),XS(E)::QAR(C)+B(B),XP(b)
      • P(g);OGATEB,XB(B)::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).