MESON Chess Problem Database

Problem Display
PID: 161184 (B5Q1/8/2r5/3NP3/P1k1pP2/1N2P3/8/1K6 w - - 0 1)

Helbig, J

Het Belgisch Schaakbord (L'Echiquier Belge), 1978

B5Q1/8/2r5/3NP3/P1k1pP2/1N2P3/8/1K6

#2

9 + 3

15611 Schaak-composities 1975-1979 (de Vuyst) 1982

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc6?
      • 1...Kd3
        • 2.Bb5#
      • 1...Kxb3!
  • Keys
    • 1.Qg2!
      • 1...Kxb3
        • 2.Qa2#
      • 1...Kd3
        • 2.Qf1#
      • 1...Kxd5
        • 2.Qg8#
      • 1...Rc5
        • 2.Qc2#
      • 1...Ra6
        • 2.Qc2#
      • 1...Rb6
        • 2.Qc2#
      • 1...Rd6
        • 2.Qc2#
      • 1...Re6
        • 2.Qc2#
      • 1...Rf6
        • 2.Qc2#
      • 1...Rg6
        • 2.Qc2#
      • 1...Rh6
        • 2.Qc2#
      • 1...Rc7
        • 2.Qc2#
      • 1...Rc8
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);XR(c)
      • Vars
        • K(a);S_FLIGHT::B(H)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • Q(I);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(I)
      • K(a);S_FLIGHT::QAB(I)
      • K(a);OGATEB,P_SPINP(b),P_SPINR(c),S_FLIGHT,XS(F)::QAB(I)
      • R(c);::QAR2(I)
      • R(c);P_PINS(B)::QAR2(I)
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).