MESON Chess Problem Database

Problem Display
PID: 203586 (6n1/N3p1Q1/r2p1B2/q2prPK1/1P1kbR2/1P1p4/3P4/8 w - - 0 1)

Hagemann, Wilhelm

Arbeiter Schachzeitung, 1924

6n1/N3p1Q1/r2p1B2/q2prPK1/1P1kbR2/1P1p4/3P4/8

#2

9 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qc7
      • 2.Sb5#
    • 1...Qd8
      • 2.Sb5#
    • 1...Qa1
      • 2.Sb5#
    • 1...Qa2
      • 2.Sb5#
    • 1...Qa3
      • 2.Sb5#
    • 1...Qb5
      • 2.Sxb5#
    • 1...Rc6
      • 2.Sxc6#
  • Tries
    • 1.Kh5?
      • threat
        • 2.Qg1#
      • 1...Qa1
        • 2.Sb5#
      • 1...Sxf6+!
  • Keys
    • 1.Kh4!
      • threat
        • 2.Qg1#
      • 1...Qa1
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(d);N_GUARD::S(H)
    • Q(d);N_GUARD::S(H),XQ(d)
    • R(g);N_GUARD::S(H),XR(g)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • QAB(I)
      • Vars
        • Q(d);N_GUARD::S(H)
      • Refutation
        • S(j);CHECK,N_SPINR(f),XB(G)
  • Actual
    • K(F);N_SPINP(E),S_FLIGHT
    • Threat
      • QAB(I)
    • Vars
      • Q(d);N_GUARD::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).