MESON Chess Problem Database

Problem Display
PID: 54271 (8/3nr3/8/8/4R1nR/K2kB3/8/1N1B2bQ w - - 0 1)

Ramaut, J

Het Belgisch Schaakbord (L'Echiquier Belge), 1952

8/3nr3/8/8/4R1nR/K2kB3/8/1N1B2bQ

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Rd4#
  • Tries
    • 1.Bxg1?
      • threat
        • 2.Rd4#
      • 1...Sf2
        • 2.Qf3#
      • 1...Rxe4!
    • 1.Qg2?
      • threat
        • 2.Bc2#
        • 2.Qc2#
      • 1...Rxe4
        • 2.Qe2#
      • 1...Sxe3
        • 2.Rd4#
        • 2.Qd2#
        • 2.Qe2#
      • 1...Sf2
        • 2.Qf1#
      • 1...Bf2!
    • 1.Qf3?
      • threat
        • 2.Rd4#
      • 1...Rxe4
        • 2.Qe2#
      • 1...Bxe3!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rc3#
      • 1...Kxe3
        • 2.Qf3#
      • 1...Kxc4
        • 2.Be2#
      • 1...Rxe3
        • 2.Qd5#
      • 1...Bxe3
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK,XB(E)::R1(F)
  • Tries
    • Try
      • B(E);XB(a)
      • Threat
        • R1(F)
      • Vars
        • S(c);N_GUARD::QAR2(C)
      • Refutation
        • R(e);XR(F)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);SBLOCK,XR(F)::QAB1(C)
        • S(c);::QAB(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • R1(F)
      • Vars
        • R(e);SBLOCK,XR(F)::QAB1(C)
      • Refutation
        • B(a);P_SPINB(a),XB(E)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XB(E)::QAR1(C)
      • K(b);P_SPINS(c),S_FLIGHT,XR(F)::B(B)
      • R(e);SBLOCK,XB(E)::QAR2(C)
      • B(a);OGATE,SBLOCK,XB(E)::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).