MESON Chess Problem Database

Problem Display
PID: 187883 (6nK/3p2N1/8/8/1q5k/2R5/3Q3N/8 w - - 0 1)

Huse, Hans Markus

Tidskrift for Schack, 1910

6nK/3p2N1/8/8/1q5k/2R5/3Q3N/8

#2

5 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Qf4#
    • 1...Qa5
      • 2.Qf4#
    • 1...Qc5
      • 2.Qf4#
    • 1...Qe7
      • 2.Qf4#
    • 1...Qb1
      • 2.Qf4#
    • 1...Qb2
      • 2.Qf4#
    • 1...Qb3
      • 2.Qf4#
    • 1...Qf4
      • 2.Qxf4#
    • 1...Qb5
      • 2.Qf4#
    • 1...Qb6
      • 2.Qf4#
    • 1...Qb7
      • 2.Qf4#
    • 1...Sh6
      • 2.Qxh6#
    • 1...Se7
      • 2.Qh6#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Sf3#
        • 2.Rh3#
        • 2.Qg3#
      • 1...Qxc3
        • 2.Qg4#
      • 1...Qg4
        • 2.Qxg4#
      • 1...Qd6
        • 2.Sf3#
        • 2.Rh3#
        • 2.Qg4#
      • 1...Qa3
        • 2.Sf3#
        • 2.Rc4#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Qf8
        • 2.Rh3#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Qb3
        • 2.Sf3#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Qe4
        • 2.Rh3#
        • 2.Qg3#
      • 1...Qf4
        • 2.Rh3#
      • 1...Qb7
        • 2.Rh3#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Qb8
        • 2.Sf3#
        • 2.Rh3#
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 12
  • Sets
    • Q(a);N_GUARD::QAR2(A)
    • Q(a);N_GUARD,SBLOCK::QAR2(A)
    • Q(a);N_GUARD::QAR2(A),XQ(a)
    • S(d);N_GUARD::QAR2(A),XS(d)
    • S(d);N_GUARD::QAR2(A)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • Q(a);N_GUARD,P_PINS(D),XR(C)::QAR1(A)
      • Q(a);N_GUARD::QAR1(A),XQ(a)
      • Q(a);::R1(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).