MESON Chess Problem Database

Problem Display
PID: 65198 (3n2B1/5q1r/pR1prBR1/1N1k1p2/1P1p2N1/4PP2/1n2Q2b/K7 w - - 0 1)

Velimirovic, Milan

Die Schwalbe, 2005

3n2B1/5q1r/pR1prBR1/1N1k1p2/1P1p2N1/4PP2/1n2Q2b/K7

#2

11 + 11

56 The Problemist 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sc7#
    • 1...Re4
      • 2.Sc7#
    • 1...Re5
      • 2.Sc7#
      • 2.Rxd6#
    • 1...Rxf6
      • 2.Sc7#
    • 1...Re8
      • 2.Sc7#
    • 1...Sd1
      • 2.Qa2#
    • 1...Sd3
      • 2.Qa2#
    • 1...Sa4
      • 2.Qa2#
    • 1...dxe3
      • 2.Sc3#
    • 1...axb5
      • 2.Qxb5#
  • Tries
    • 1.exd4?
      • threat
        • 2.Sc3#
      • 1...Qxf6
        • 2.Se3#
        • 2.Sxf6#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...axb5
        • 2.Qxb5#
      • 1...Re3
        • 2.Sc7#
      • 1...Re4
        • 2.Sc7#
      • 1...Re5
        • 2.Rxd6#
      • 1...Sd3
        • 2.Qa2#
      • 1...Qc7
        • 2.Se3#
      • 1...Be5
        • 2.Se3#
      • 1...Sd1
        • 2.Qa2#
      • 1...Sa4
        • 2.Qa2#
      • 1...Rxe2!
    • 1.e4+?
      • 1...Rxe4
        • 2.Sc7#
      • 1...fxe4!
  • Keys
    • 1.Bxd4!
      • threat
        • 2.Sc3#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Rxg6
        • 2.Sc7#
      • 1...axb5
        • 2.Qxb5#
      • 1...Rf6
        • 2.Sc7#
      • 1...Sd3
        • 2.Qa2#
      • 1...Qc7
        • 2.Sf6#
      • 1...Sd1
        • 2.Qa2#
      • 1...Sa4
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);P_SPINQ(i),XP(C)::S(G)
    • R(h);P_SPINQ(i)::S(G)
    • R(h);P_SPINQ(i),XB(I)::S(G)
    • S(a);OGATE::QAB(B)
    • P(c);N_GUARD,XP(C)::S(G)
    • P(f);OGATE,XS(G)::QAR2(B),XP(f)
  • Tries
    • Try
      • P(C);XP(c)
      • Threat
        • S(G)
      • Vars
        • R(h);P_SPINQ(i),XB(I)::S(F),XR(h)
        • P(f);OGATE,XS(G)::QAR2(B),XP(f)
        • R(h);P_SPINQ(i)::S(G)
        • R(h);N_GUARD,P_SPINQ(i),S_CUTB(b)::R1(H),XP(g)
        • S(a);OGATE::QAB(B)
        • Q(i);P_SPINR(h)::S(F)
        • B(b);S_CUTR(h)::S(F)
      • Refutation
        • R(h);P_SPINQ(i),XQ(B)
    • Try
      • P(C);CHECK
      • Vars
        • R(h);P_SPINQ(i),XP(C)::S(G)
      • Refutation
        • P(e);XP(C)
  • Actual
    • B(I);XP(c)
    • Threat
      • S(G)
    • Vars
      • R(h);P_SPINQ(i),XP(C)::S(F),XR(h)
      • R(h);P_SPINQ(i),XR(J)::S(G)
      • P(f);OGATE,XS(G)::QAR2(B),XP(f)
      • R(h);P_SPINQ(i)::S(G)
      • S(a);OGATE::QAB(B)
      • Q(i);N_GUARD,P_SPINR(h)::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).