MESON Chess Problem Database

Problem Display
PID: 140152 (5R2/8/8/Pk6/8/4BB2/1K2b3/1n2Q3 w - - 0 1)

van Gool, Johann Christoffel

Probleemblad, 1975

5R2/8/8/Pk6/8/4BB2/1K2b3/1n2Q3

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bxe2+?
      • 1...Ka4
        • 2.Rf4#
      • 1...Kc6!
    • 1.Rf5+?
      • 1...Kc4
        • 2.Bxe2#
      • 1...Ka6
        • 2.Qxe2#
      • 1...Ka4!
    • 1.Qb4+?
      • 1...Ka6
        • 2.Bxe2#
        • 2.Bb7#
        • 2.Rf6#
        • 2.Ra8#
        • 2.Qb6#
      • 1...Kxb4!
  • Keys
    • 1.Rb8+!
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qxe2#
      • 1...Ka6
        • 2.Bxe2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK,XB(b)
      • Vars
        • K(c);S_FLIGHT::R(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::B(D),XB(b)
        • K(c);S_FLIGHT::QAB(A),XB(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
  • Actual
    • R(F);CHECK
    • Vars
      • K(c);S_FLIGHT::QAR1(A)
      • K(c);S_FLIGHT::QAB(A),XB(b)
      • K(c);S_FLIGHT::B(D),XB(b)
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).