MESON Chess Problem Database

Problem Display
PID: 11944 (2R1K3/8/1N1Bp3/1N2pp2/1p2kr2/3p1rn1/1n3p2/1BQ5 w - - 0 1)

Stosic, Miroslav

1st Prize, Schakend Nederland, 1973

2R1K3/8/1N1Bp3/1N2pp2/1p2kr2/3p1rn1/1n3p2/1BQ5

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qc6#
    • 1...Sd1
      • 2.Rc4#
    • 1...Sa4
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Bc5#
      • 1...bxc3!
    • 1.Sd7?
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Sf6#
        • 2.Qc6#
      • 1...Re3
        • 2.Qc6#
      • 1...Sh5!
    • 1.Rc5?
      • threat
        • 2.Rxe5#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Re3!
    • 1.Qc5?
      • threat
        • 2.Qxe5#
      • 1...Re3
        • 2.Qc6#
      • 1...Sc4!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Sd6#
      • 1...Re3
        • 2.Qxe3#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(d);SBLOCK::QAB(B)
    • S(a);N_GUARD::R(F)
    • S(a);N_GUARD::R(F),XS(a)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(g);N_SPINP(c),P-FLIGHT::B(E)
      • Refutation
        • P(f);XS(C)
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • R(d);SBLOCK::QAB(B)
      • Refutation
        • S(e);
    • Try
      • R(F);
      • Threat
        • R1(F),XP(i)
      • Vars
        • S(a);N_GUARD::R(F),XS(a)
      • Refutation
        • R(d);
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(i)
      • Vars
        • R(d);SBLOCK::QAB(B)
      • Refutation
        • S(a);
  • Actual
    • B(E);
    • Threat
      • S(C)
    • Vars
      • R(d);N_GUARD::QAR1(B),XR(d)
      • S(a);N_GUARD::QAR2(B),XS(a)
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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).