MESON Chess Problem Database

Problem Display
PID: 181118 (3n4/3p4/1Q1P4/2Bk1P2/K4P2/2R5/4P3/2n5 w - - 0 1)

Vetesnik, Ladislav

Tijdschrift vd NSB, 1904

3n4/3p4/1Q1P4/2Bk1P2/K4P2/2R5/4P3/2n5

#2

8 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Qb7#
    • 1...Sb7
      • 2.Qxb7#
    • 1...Sf7
      • 2.Qb7#
  • Tries
    • 1.Qxd8?
      • threat
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Ke4!
  • Keys
    • 1.Qb1!
      • 1...Kc6
        • 2.Qe4#
      • 1...Sxe2
        • 2.Qh1#
      • 1...Sd3
        • 2.Qh1#
      • 1...Sa2
        • 2.Qh1#
      • 1...Sb3
        • 2.Qh1#
      • 1...Sc6
        • 2.e4#
      • 1...Se6
        • 2.Qb7#
      • 1...Sb7
        • 2.Qxb7#
      • 1...Sf7
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAB(G)
    • S(d);N_GUARD::QAB(G),XS(d)
  • Tries
    • Try
      • Q(G);XS(d)
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(b);S_FLIGHT::QAB(G)
      • S(a);OGATE,XP(A)::QAB(G)
      • S(a);OGATE::QAB(G)
      • S(d);SBLOCK::P(A)
      • S(d);N_GUARD::QAB(G)
      • S(d);N_GUARD::QAB(G),XS(d)
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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).