MESON Chess Problem Database

Problem Display
PID: 189486 (1K6/4R3/BBp5/R1n1n3/3k1p2/q1b4Q/5p2/8 w - - 0 1)

Vetesnik, Ladislav

Alkmaarsche Courant, 1911

1K6/4R3/BBp5/R1n1n3/3k1p2/q1b4Q/5p2/8

#2

6 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qd7#
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qd7#
    • 1...Sg4
      • 2.Qd3#
    • 1...Sg6
      • 2.Qd7#
      • 2.Qd3#
    • 1...Sd7+
      • 2.Qxd7#
    • 1...Sf7
      • 2.Qd3#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxe5#
      • 1...Sd7+
        • 2.Qxd7#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kd5
        • 2.Rd7#
      • 1...Sd3
        • 2.Re4#
        • 2.Qxd3#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Sf3
        • 2.Re4#
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Sc4
        • 2.Qe4#
      • 1...Sg4
        • 2.Re4#
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Sg6
        • 2.Re4#
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Sf7
        • 2.Re4#
        • 2.Qd3#
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(g);N_GUARD::QAR(A)
    • S(g);N_GUARD::QAR1(A)
    • S(g);CHECK,N_GUARD::QAR(A),XS(g)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XS(g)
    • Vars
      • S(g);CHECK,N_GUARD::QAR(A),XS(g)
      • K(d);S_FLIGHT::QAR1(A)
      • K(d);P-FLIGHT::R(E)
      • S(g);::QAR1(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).