MESON Chess Problem Database

Problem Display
PID: 10783 (1r2N2Q/BP2pRp1/2R1P1P1/K2nk2N/pp6/3PpB2/5P1r/q7 w - - 0 1)

Nesic, Milivoj S

1st Prize, Sahovski Glasnik, 1968

1r2N2Q/BP2pRp1/2R1P1P1/K2nk2N/pp6/3PpB2/5P1r/q7

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.d4#
    • 1...Qc1
      • 2.d4#
    • 1...Qe1
      • 2.d4#
    • 1...Qf1
      • 2.d4#
    • 1...Qg1
      • 2.d4#
    • 1...Qh1
      • 2.d4#
    • 1...Qa2
      • 2.d4#
    • 1...Qa3
      • 2.d4#
    • 1...Rxh5
      • 2.Qxh5#
    • 1...Sc3
      • 2.Qxg7#
      • 2.d4#
    • 1...Sf4
      • 2.Qxg7#
    • 1...Sb6
      • 2.Qxg7#
    • 1...Sc7
      • 2.Qxg7#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Rf5#
      • 1...Sb6
        • 2.Qxg7#
      • 1...Rh5
        • 2.Qxh5#
      • 1...Sf6!
    • 1.Sexg7?
      • threat
        • 2.Rf5#
      • 1...Rxh5
        • 2.Qxh5#
      • 1...Sb6
        • 2.Se8#
      • 1...Sf6
        • 2.Qxb8#
      • 1...Rf8!
    • 1.Be4?
      • threat
        • 2.Rf5#
      • 1...Rxh5
        • 2.Qxh5#
      • 1...Sb6
        • 2.Qxg7#
      • 1...Sf6
        • 2.f4#
      • 1...Rxf2!
    • 1.Bxb8+?
      • 1...Sc7
        • 2.Qxg7#
      • 1...Kd4!
  • Keys
    • 1.Shxg7!
      • threat
        • 2.Rf5#
      • 1...Sb6
        • 2.Sh5#
      • 1...Sf6
        • 2.Qxh2#
      • 1...Rh5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::P(B)
    • R(b);OGATE,XS(E)::QAR(M),XR(b)
    • S(f);N_GUARD::QAB(M),XP(i)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(K)
      • Vars
        • S(f);N_GUARD::QAB(M),XP(i)
        • R(b);N_GUARD::QAR(M),XR(b)
      • Refutation
        • S(f);N_SPINP(i)
    • Try
      • S(L);XP(i)
      • Threat
        • R1(K)
      • Vars
        • R(b);OGATE,XS(E)::QAR(M),XR(b)
        • S(f);N_GUARD::QAB(M)+S(L)
        • S(f);N_GUARD::QAB(M),XR(j)
      • Refutation
        • R(j);
    • Try
      • B(C);
      • Threat
        • R1(K)
      • Vars
        • R(b);OGATE,XS(E)::QAR(M),XR(b)
        • S(f);N_GUARD::QAB(M),XP(i)
        • S(f);N_GUARD,N_SPINP(i)::P(A)
      • Refutation
        • R(b);XP(A)
    • Try
      • B(I);CHECK,XR(j)
      • Vars
        • S(f);P_SPINS(f)::QAB(M),XP(i)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • S(E);XP(i)
    • Threat
      • R1(K)
    • Vars
      • S(f);N_GUARD::QAB(M)+S(E)
      • S(f);N_GUARD::QAB(M),XR(b)
      • R(b);N_GUARD::QAR(M),XR(b)
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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).