MESON Chess Problem Database

Problem Display
PID: 251760 (1Q6/KbpNpp2/2p1pr2/n5n1/3k1N2/3p4/3B4/2R1R3 w - - 0 1)

Klemanic, Emil

Die Schwalbe, 2021

1Q6/KbpNpp2/2p1pr2/n5n1/3k1N2/3p4/3B4/2R1R3

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Qb2#
    • 1...Ba8
      • 2.Qb2#
    • 1...Bc8
      • 2.Qb2#
    • 1...Sc4
      • 2.Bc3#
    • 1...Se4
      • 2.Be3#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qd8#
      • 1...Sc4
        • 2.Sb3#
      • 1...Se4
        • 2.Rxe4#
      • 1...Bc8
        • 2.Qb2#
      • 1...e5
        • 2.Be3#
      • 1...Rf5!
    • 1.Rc5?
      • threat
        • 2.Bc3#
      • 1...Se4
        • 2.Be3#
      • 1...Sc4!
    • 1.Re5?
      • threat
        • 2.Be3#
      • 1...Sc4
        • 2.Bc3#
      • 1...Se4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qd8#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Se4
        • 2.Sf3#
      • 1...Bc8
        • 2.Qb2#
      • 1...c5
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(h);OGATE::QAB(G)
    • S(c);SBLOCK::B(C)
    • S(d);SBLOCK::B(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR(G)
      • Vars
        • S(c);N_GUARD::S(F)
        • S(d);N_GUARD::R1(B),XS(d)
        • B(h);OGATE::QAB(G)
        • P(f);SBLOCK::B(C)
      • Refutation
        • R(g);
    • Try
      • R(A);
      • Threat
        • B(C)
      • Vars
        • S(d);SBLOCK::B(C)
      • Refutation
        • S(c);
    • Try
      • R(B);
      • Threat
        • B(C)
      • Vars
        • S(c);SBLOCK::B(C)
      • Refutation
        • S(d);
  • Actual
    • S(F);
    • Threat
      • QAR(G)
    • Vars
      • S(c);N_GUARD::R1(A),XS(c)
      • S(d);N_GUARD::S(F)
      • B(h);OGATE::QAB(G)
      • P(e);SBLOCK::B(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).