MESON Chess Problem Database

Problem Display
PID: 138638 (3N3K/4N3/3p1P1B/r3k3/3n1R2/2n3P1/1Q5p/bb1R3q w - - 0 1)

Vesz, Tibor

Good Companions (November), 1922

3N3K/4N3/3p1P1B/r3k3/3n1R2/2n3P1/1Q5p/bb1R3q

#2

9 + 9

3391 Het Half Pin Thema 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Rf5#
    • 1...Sd5
      • 2.Sec6#
    • 1...Sc2
      • 2.Sg6#
    • 1...Sf3
      • 2.Sec6#
    • 1...Se6
      • 2.Sf7#
    • 1...d5
      • 2.Qb8#
  • Keys
    • 1.Bg7!
      • threat
        • 2.f7#
      • 1...d5
        • 2.Qb8#
      • 1...Se4
        • 2.Rf5#
      • 1...Sd5
        • 2.Sec6#
      • 1...Sf5
        • 2.Sg6#
      • 1...Se6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(e);P_SPINS(f),SBLOCK,S_CUTB(b)::R1(D)
    • S(e);P_SPINS(f),SBLOCK,S_CUTQ(c)::S(G)
    • S(f);P_SPINS(e),S_CUTB(b)::S(G)
    • S(f);N_GUARD,P_SPINS(e),S_CUTQ(c)::S(G)
    • S(f);P_SPINS(e),SBLOCK::S(H)
    • P(i);OGATEB::QAB(B)
  • Actual
    • B(F);
    • Threat
      • B(F)+P(E)
    • Vars
      • P(i);OGATEB::QAB(B)
      • S(e);P_SPINS(f),SBLOCK,S_CUTB(b)::R1(D)
      • S(e);P_SPINS(f),SBLOCK,S_CUTQ(c)::S(G)
      • S(f);P_SPINS(e),S_CUTB(b)::S(G)
      • S(f);P_SPINS(e),SBLOCK::S(H)
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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).