MESON Chess Problem Database

Problem Display
PID: 68689 (r7/B4p1n/2PR3Q/2r1k2n/1Rb3B1/5P2/8/4K3 w - - 0 1)

Zilahi, Zoltan

Het Belgisch Schaakbord (L'Echiquier Belge), 1956

r7/B4p1n/2PR3Q/2r1k2n/1Rb3B1/5P2/8/4K3

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Bd4#
    • 1...Rb5
      • 2.Bd4#
    • 1...Rxc6
      • 2.Bd4#
    • 1...Bf1
      • 2.Re4#
    • 1...Ba2
      • 2.Re4#
    • 1...Be2
      • 2.Re4#
    • 1...Bb3
      • 2.Re4#
    • 1...Bb5
      • 2.Re4#
    • 1...Ba6
      • 2.Re4#
    • 1...S5f6
      • 2.Qh2#
    • 1...Sg7
      • 2.Qh2#
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qd6#
      • 1...Rxc6
        • 2.Bd4#
      • 1...Rd5
        • 2.Re7#
      • 1...Be6
        • 2.Re4#
      • 1...S5f6
        • 2.Qh2#
      • 1...S7f6
        • 2.Qg5#
      • 1...f6
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(b);OGATE::B(H)
    • R(b);OGATE,XP(E)::B(H)
    • B(a);OGATE::R1(C)
    • S(d);OGATE::QAB(G)
  • Actual
    • R(F);
    • Threat
      • QAB1(G)
    • Vars
      • R(b);OGATE,XP(E)::B(H)
      • R(b);SBLOCK,S_CUTB(a)::R(F)
      • B(a);OGATE::R1(C)
      • S(d);OGATE,SBLOCK::QAB(G)
      • S(f);N_GUARD,S_CUTP(e)::QAR2(G)
      • P(e);SBLOCK::QAR2(G)
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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).