MESON Chess Problem Database

Problem Display
PID: 167264 (8/8/4pp2/Rn2P2p/5k1p/2PpN3/3N3P/5KQ1 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Tidskrift for Schack, 1906

8/8/4pp2/Rn2P2p/5k1p/2PpN3/3N3P/5KQ1

#2

8 + 7

15 British Chess Magazine 1910

SOLUTION

  • SOUND
  • Sets
    • 1...h3
      • 2.Qg3#
  • Tries
    • 1.Qf2+?
      • 1...Kg5
        • 2.Qxf6#
      • 1...Kxe5!
    • 1.Qg4+?
      • 1...Kxe3
        • 2.Sc4#
      • 1...Kxe5
        • 2.Sdc4#
        • 2.Qd4#
      • 1...hxg4!
  • Keys
    • 1.Qg7!
      • 1...Kxe3
        • 2.Qh6#
      • 1...Kxe5
        • 2.Qc7#
      • 1...Sxc3
        • 2.Qh6#
      • 1...fxe5
        • 2.Qh6#
      • 1...f5
        • 2.Sg2#
      • 1...Sa3
        • 2.Qh6#
      • 1...Sd4
        • 2.Qh6#
      • 1...Sd6
        • 2.Qh6#
      • 1...Sa7
        • 2.Qh6#
      • 1...Sc7
        • 2.Qh6#
      • 1...h3
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(B),XP(g)
      • Refutation
        • K(b);P_SPINS(d),S_FLIGHT,XP(H)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(F)::S(C)
      • Refutation
        • P(e);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT,XS(F)::QAB(B)
      • K(b);OGATEB,P_SPINP(g),P_SPINS(d),S_FLIGHT,XP(H)::QAB(B)
      • S(d);XP(E)::QAB(B)
      • P(g);SBLOCK,XP(H)::QAB(B)
      • P(g);SBLOCK::S(F)
      • S(d);::QAB(B)
      • P(c);N_GUARD::QAB1(B)
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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).