MESON Chess Problem Database

Problem Display
PID: 227464 (2k5/1qP5/BQ1nK3/8/8/8/8/8 w - - 0 1)

de Savignac Castelet, G Arnaud

L'Echiquier Marseillais, 1926

2k5/1qP5/BQ1nK3/8/8/8/8/8

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa6
      • 2.Qb8#
    • 1...Sc4
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Se4
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Sb5
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Sf5
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Sf7
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Se8
      • 2.Bxb7#
      • 2.Qxb7#
  • Tries
    • 1.Ke7?
      • 1...Qxa6
        • 2.Qb8#
      • 1...Sc4
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Se4
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sb5
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sf7
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Se8
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sf5+!
  • Keys
    • 1.Kxd6!
      • 1...Qxa6
        • 2.Qxa6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_SPINQ(b),OGATE,XB(A)::QAR1(B)
  • Tries
    • Try
      • K(C);P-FLIGHT,P_SPINP(D)
      • Vars
        • Q(b);N_PINP(D),N_SPINQ(b),OGATE,XB(A)::QAR1(B)
      • Refutation
        • S(a);CHECK
  • Actual
    • K(C);P-FLIGHT,XS(a)
    • Vars
      • Q(b);N_SPINQ(b),OGATE,P_PINQ(B),XB(A)::QAB(B),XQ(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).