MESON Chess Problem Database

Problem Display
PID: 146197 (8/R7/2p1Kp1p/BkN2N1Q/3Pp1np/1Pp4q/2n1rp1b/2rb1B2 w - - 0 1)

Hultberg, Gustav Herbert

1st Prize, Svenska Dagbladet, 1930

8/R7/2p1Kp1p/BkN2N1Q/3Pp1np/1Pp4q/2n1rp1b/2rb1B2

#2

9 + 15

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Sxd4+
      • 2.Sxd4#
  • Tries
    • 1.Sa4?
      • threat
        • 2.Sd6#
      • 1...Sxd4+
        • 2.Sxd4#
      • 1...c5
        • 2.Qe8#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Sge3
        • 2.Sxc3#
      • 1...Se5!
    • 1.Sb7?
      • threat
        • 2.Sfd6#
      • 1...Sxd4+
        • 2.Sxd4#
      • 1...c5
        • 2.Qe8#
      • 1...Bd6
        • 2.Sfxd6#
        • 2.Sbxd6#
      • 1...Se5
        • 2.Sd6#
      • 1...Sge3!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sd6#
      • 1...Sxd4+
        • 2.Sxd4#
      • 1...c5
        • 2.Qe8#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Sge3
        • 2.Sxc3#
      • 1...Se5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::S(F)
    • B(f);N_GUARD::S(F),XB(f)
    • S(c);CHECK,XP(C)::S(F),XS(c)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR(G)+S(F),DCHECK
      • Vars
        • S(c);CHECK,XP(C)::QAR(G)+S(F),DCHECK,XS(c)
        • P(m);OGATEB::QAB(G)
        • B(f);::QAR(G)+S(F),DCHECK,XB(f)
        • S(j);P_PINS(F),S_CUTQ(h)::S(E),XP(g)
      • Refutation
        • S(j);P_PINS(F)
    • Try
      • S(E);
      • Threat
        • QAR(G)+S(F),DCHECK
      • Vars
        • S(c);CHECK,XP(C)::QAR(G)+S(F),DCHECK,XS(c)
        • P(m);OGATEB::QAB(G)
        • S(j);P_PINS(F),S_CUTB(f)::S(E)
      • Refutation
        • S(j);P_PINS(F)
  • Actual
    • S(E);P_SPINS(E),XP(i)
    • Threat
      • QAR(G)+S(F),DCHECK
    • Vars
      • S(c);CHECK,XP(C)::QAR(G)+S(F),DCHECK,XS(c)
      • P(m);OGATEB::QAB(G)
      • B(f);::QAR(G)+S(F),DCHECK,XB(f)
      • S(j);N_PINS(E),P_PINS(F)::S(E),XP(g)
      • S(j);N_PINS(E),P_PINS(F)::S(E)
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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).