MESON Chess Problem Database

Problem Display
PID: 119974 (1kN5/1b2K3/8/8/7p/4BB1Q/8/8 w - - 0 1)

Cumpe, Josef

Askilstuna Kuriren, 1919

1kN5/1b2K3/8/8/7p/4BB1Q/8/8

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.Bf4#
    • 1...Ba6
      • 2.Bf4#
    • 1...Ba8
      • 2.Bf4#
    • 1...Bxc8
      • 2.Qh2#
  • Tries
    • 1.Ba7+?
      • 1...Kc7
        • 2.Qd7#
      • 1...Ka8!
    • 1.Qh2+?
      • 1...Kxc8
        • 2.Bg4#
      • 1...Ka8!
  • Keys
    • 1.Sa7!
      • 1...Kc7
        • 2.Qh2#
      • 1...Ka8
        • 2.Qc8#
      • 1...Bxf3
        • 2.Qc8#
      • 1...Be4
        • 2.Qc8#
      • 1...Bd5
        • 2.Qc8#
      • 1...Bc6
        • 2.Qc8#
      • 1...Ba6
        • 2.Qh2#
      • 1...Ba8
        • 2.Qc8#
        • 2.Qh2#
      • 1...Bc8
        • 2.Qxc8#
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • K(c);S_FLIGHT::B(A)
    • B(b);::B(A)
    • B(b);SBLOCK,XS(E)::QAB(C)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT,P_SPINB(b)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(E)::B(B)
      • Refutation
        • K(c);P-FLIGHT,P_SPINB(b)
  • Actual
    • S(E);
    • Vars
      • K(c);S_FLIGHT::QAB(C)
      • K(c);P-FLIGHT,P_SPINB(b)::QAR2(C)
      • B(b);N_GUARD,XB(B)::QAR1(C)
      • B(b);N_GUARD::QAR1(C)
      • B(b);::QAB(C)
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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).