MESON Chess Problem Database

Problem Display
PID: 214945 (8/8/2pK4/N4BpN/3k4/Q7/n2r1Pn1/2r2b2 w - - 0 1)

Iborra Yperez de Sario, Jose

SEPA, 1942

8/8/2pK4/N4BpN/3k4/Q7/n2r1Pn1/2r2b2

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qc5#
    • 1...Rb1
      • 2.Qc5#
    • 1...Rcd1
      • 2.Qc5#
    • 1...Re1
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Re2
      • 2.Qd3#
    • 1...Bc4
      • 2.Sxc6#
    • 1...Sc3
      • 2.Qc5#
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
      • 2.fxe3#
    • 1...Sf4
      • 2.Qe3#
    • 1...Sh4
      • 2.Qe3#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Se6#
      • 1...Sxf4
        • 2.Qe3#
      • 1...Re1
        • 2.Qc5#
      • 1...Re2
        • 2.Qd3#
      • 1...Bc4
        • 2.Sxc6#
      • 1...gxf4!
    • 1.Qb4+?
      • 1...Rc4
        • 2.Sb3#
        • 2.Sxc6#
      • 1...Bc4
        • 2.Sb3#
        • 2.Sxc6#
      • 1...Sxb4!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Se6#
      • 1...Re1
        • 2.Qc5#
      • 1...Re2
        • 2.Qd3#
      • 1...Bc4
        • 2.Sxc6#
      • 1...Sf4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::QAB1(B)
    • R(a);N_GUARD::QAB1(B),XR(a)
    • R(d);N_GUARD,S_CUTB(b)::QAR1(B)
    • B(b);SBLOCK,S_CUTR(a)::S(C),XP(h)
    • S(c);S_CUTR(a)::QAB1(B)
    • S(e);N_GUARD::QAB1(B)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(e);N_GUARD,XS(E)::QAB1(B)
        • R(a);N_GUARD::QAB1(B)
        • R(d);N_GUARD,S_CUTB(b)::QAR1(B)
        • B(b);SBLOCK,S_CUTR(a)::S(C),XP(h)
      • Refutation
        • P(g);XS(E)
    • Try
      • Q(B);CHECK
      • Refutation
        • S(c);XQ(B)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(a);N_GUARD::QAB1(B)
      • R(d);N_GUARD,S_CUTB(b)::QAR1(B)
      • B(b);SBLOCK,S_CUTR(a)::S(C),XP(h)
      • S(e);N_GUARD::QAB1(B)
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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).