MESON Chess Problem Database

Problem Display
PID: 139864 (K1R3b1/1n1p4/N1nP2Q1/3k2N1/7r/3PR2r/1B2B2b/6q1 w - - 0 1)

Ebben, LJ

1st Comm., 03. Kwik-Toernooi, 1974

K1R3b1/1n1p4/N1nP2Q1/3k2N1/7r/3PR2r/1B2B2b/6q1

#2

10 + 9

102 Probleemblad 1974

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.dxc4#
    • 1...Re4
      • 2.dxe4#
    • 1...Bxd6
      • 2.Qxg8#
    • 1...Sd4
      • 2.Sb4#
    • 1...Sc5
      • 2.Sc7#
  • Tries
    • 1.Bf3+?
      • 1...Re4
        • 2.Bxe4#
      • 1...Rxf3!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc7#
      • 1...Rxe4
        • 2.dxe4#
      • 1...Bxd6
        • 2.Sf6#
      • 1...Sd4
        • 2.Sc3#
      • 1...Qa1
        • 2.Qxg8#
      • 1...Sb4
        • 2.Sxb4#
      • 1...Sca5
        • 2.Sb4#
      • 1...Se5
        • 2.Sb4#
      • 1...Sa7
        • 2.Sb4#
      • 1...Se7
        • 2.Sb4#
      • 1...Sb8
        • 2.Sb4#
      • 1...Scd8
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • R(d);OGATE::P(C),XR(d)
    • B(b);SBLOCK,XP(G)::QAB(H),XB(i)
    • S(f);N_GUARD,S_CUTR(d)::S(F)
    • S(g);SBLOCK::S(F)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::B(B),XR(d)
      • Refutation
        • R(c);XB(B)
  • Actual
    • S(E);
    • Threat
      • S(F)
    • Vars
      • R(d);OGATE,XS(E)::P(C),XR(d)
      • B(b);SBLOCK,XP(G)::S(E)
      • S(f);SBLOCK::S(E)
      • Q(a);N_GUARD,P_PINS(F)::QAB(H),XB(i)
      • S(f);N_GUARD::S(F),XS(f)
      • S(f);N_GUARD::S(F)
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).