MESON Chess Problem Database

Problem Display
PID: 203267 (2B5/8/3p4/3k3r/7p/n1QP4/2p5/1bK3B1 w - - 0 1)

Bode, Robert

Arbeiter Schachzeitung, 1924

2B5/8/3p4/3k3r/7p/n1QP4/2p5/1bK3B1

#2

5 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qa5+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Kc6!
    • 1.Qb3+?
      • 1...Kc6
        • 2.Qb7#
      • 1...Sc4
        • 2.Qb5#
      • 1...Ke5!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Sxc4!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kc6
        • 2.Qb7#
      • 1...Re5
        • 2.Qb7#
      • 1...Sc4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR2(C),XS(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(C)
        • S(c);N_GUARD,P_SPINS(c)::QAR2(C)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(C)
      • Refutation
        • S(c);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(e);P-FLIGHT::QAB1(C)
      • K(e);S_FLIGHT::QAB1(C)
      • R(f);SBLOCK::QAB(C)
      • S(c);N_GUARD::QAR2(C)
HTML5 logo

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).