MESON Chess Problem Database

Problem Display
PID: 106247 (6b1/1B3n2/2r4b/2p5/rp6/p3kP2/2PNN3/Q2R1Kn1 w - - 0 1)

Benedek, Attila

Karacsonyi lap, 1966

6b1/1B3n2/2r4b/2p5/rp6/p3kP2/2PNN3/Q2R1Kn1

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Sc4#
    • 1...Rb6
      • 2.Sc4#
    • 1...Rd6
      • 2.Sc4#
    • 1...Re6
      • 2.Sc4#
    • 1...Rf6
      • 2.Sc4#
    • 1...Rg6
      • 2.Sc4#
    • 1...Rc7
      • 2.Sc4#
    • 1...Rc8
      • 2.Sc4#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sd8
      • 2.Qe5#
    • 1...Sh8
      • 2.Qe5#
    • 1...b3
      • 2.Qc3#
    • 1...c4
      • 2.Qd4#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sc4#
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sd6
        • 2.Qxh6#
      • 1...Sd8
        • 2.Qe5#
      • 1...Sh8
        • 2.Qe5#
      • 1...b3
        • 2.Qc3#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(g);::S(E)
    • R(g);P_PINP(G)::S(E)
    • S(i);N_GUARD::QAR2(A),XS(i)
    • S(i);N_GUARD::QAR2(A)
    • P(e);N_GUARD::QAR2(A)
    • P(f);N_GUARD::QAB1(A)
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • S(a);OGATE,XP(G)::QAR1(A),XS(a)
      • B(h);N_GUARD::QAB1(A),XB(h)
      • S(i);N_GUARD::QAR2(A),XS(i)
      • S(i);S_CUTB(h)::QAB1(A)
      • S(i);N_GUARD,S_CUTR(g)::QAB(A),XB(h)
      • S(i);N_GUARD::QAR2(A)
      • P(e);N_GUARD::QAR2(A)
      • P(f);N_GUARD::QAB1(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).