MESON Chess Problem Database

Problem Display
PID: 178629 (b2R1B2/2N5/3bB3/3q4/1P1knp2/1p1N4/1K3P2/4RQ2 w - - 0 1)

Bikos, Spyros

Comm., Xeque Mate, 1947

b2R1B2/2N5/3bB3/3q4/1P1knp2/1p1N4/1K3P2/4RQ2

#2

10 + 7

78 Bulletin Ouvrier des Echecs 1952

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Rxe4#
    • 1...Qb5
      • 2.Sxb5#
  • Tries
    • 1.Rxe4+?
      • 1...Qxe4
        • 2.Sb5#
      • 1...Kxe4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf3#
      • 1...Kxe5
        • 2.Bg7#
      • 1...Qxe5
        • 2.Qc4#
      • 1...Bxe5
        • 2.Sb5#
      • 1...Sxf2
        • 2.Qxf2#
      • 1...Sd2
        • 2.Qd3#
      • 1...Sc3
        • 2.Qd3#
      • 1...Sg3
        • 2.Qd3#
      • 1...Sc5
        • 2.Sb5#
      • 1...Sg5
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#
      • 1...f3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 2
  • Sets
    • K(b);P-FLIGHT,P_SPINQ(e)::R(A),XS(c)
    • Q(e);N_GUARD,P_SPINB(f)::S(H),XQ(e)
  • Tries
    • Try
      • R(A);CHECK,XS(c)
      • Vars
        • Q(e);P_SPINB(f),SBLOCK,XR(A)::S(H)
      • Refutation
        • K(b);P-FLIGHT,XR(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(b);OGATEB,P_SPINS(c),S_FLIGHT,XS(E)::B(J)
      • Q(e);N_GUARD,P_SPINB(f),SBLOCK,XS(E)::QAR1(B)
      • B(f);P_SPINQ(e),SBLOCK,XS(E)::S(H)
      • S(c);OGATE,XP(D)::QAB(B),XS(c)
      • S(c);::QAR1(B)
      • S(c);S_CUTQ(e)::S(H)
      • P(d);::S(E),XP(d)
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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).