MESON Chess Problem Database

Problem Display
PID: 142301 (8/BK2pp2/8/1RN1k3/2p1Br1P/5pQ1/6b1/8 w - - 0 1)

Lazard, Frederic

Barmens Schackfor., 1905

8/BK2pp2/8/1RN1k3/2p1Br1P/5pQ1/6b1/8

#2

7 + 7

119 Tidskrift for Schack 1909
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Bb8#
    • 1...Kf6
      • 2.Qg5#
  • Tries
    • 1.Bb8+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Kd4!
    • 1.Qxf4+?
      • 1...Kd4
        • 2.Sa4#
      • 1...Kxf4!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Se4#
      • 1...Kd4
        • 2.Sa4#
      • 1...Kd5
        • 2.Se4#
      • 1...Kxf5
        • 2.Qg5#
      • 1...Kd6
        • 2.Se4#
      • 1...Kf6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::B(F)
    • K(e);N_SPINR(d),S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(e);N_SPINR(d),S_FLIGHT::QAB1(A)
      • Refutation
        • K(e);N_SPINR(d),S_FLIGHT
    • Try
      • Q(A);CHECK,XR(d)
      • Vars
        • K(e);S_FLIGHT::B(F)+S(E)
      • Refutation
        • K(e);S_FLIGHT,XQ(A)
  • Actual
    • B(B);
    • Threat
      • R(D)+S(E)
    • Vars
      • K(e);N_SPINR(d),S_FLIGHT::B(F)+S(E)
      • K(e);N_SPINR(d),P-FLIGHT::R(D)+S(E)
      • K(e);N_SPINR(d),OGATEB,P-FLIGHT,XB(B)::QAR1(A)
      • K(e);S_FLIGHT::S(E)
      • K(e);N_SPINR(d),S_FLIGHT::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).