MESON Chess Problem Database

Problem Display
PID: 118820 (5N2/1p1R4/3B4/Np1kqpRr/3p3P/4pK2/P5Q1/1Bn5 w - - 0 1)

Teodoru, Costin A

Sinfonie Scacchistiche, 1970

5N2/1p1R4/3B4/Np1kqpRr/3p3P/4pK2/P5Q1/1Bn5

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Be4#
    • 1...Qg3+
      • 2.Kxg3#
    • 1...Qf4+
      • 2.Kxf4#
    • 1...Qf6
      • 2.Kg3#
      • 2.Kf4#
      • 2.Be4#
    • 1...Qg7
      • 2.Kg3#
      • 2.Kf4#
      • 2.Be4#
    • 1...Qh8
      • 2.Kg3#
      • 2.Kf4#
      • 2.Be4#
    • 1...Qe4+
      • 2.Bxe4#
    • 1...Sxa2
      • 2.Bxa2#
      • 2.Qxa2#
    • 1...f4
      • 2.Be4#
      • 2.Ba3#
      • 2.Bb4#
      • 2.Be7#
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc5#
      • 1...Qg3+
        • 2.Bxg3#
      • 1...Qf4+
        • 2.Bxf4#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Qxd6
        • 2.Qxf5#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sd3
        • 2.Qb3#
      • 1...b6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(f);N_GUARD,P_SPINP(g)::B(A)
    • Q(f);CHECK,P_SPINP(g)::QAB(C)+K(D),XQ(f)
    • Q(f);CHECK,N_GUARD,P_SPINP(g)::B(A),XQ(f)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • Q(f);CHECK,OGATE,P_SPINP(g)::R(I)+B(H),XQ(f)
      • Q(f);CHECK,N_GUARD,P_SPINP(g)::QAB1(C),XQ(f)
      • Q(f);OGATEB,P_SPINP(g),P_SPINQ(f),XB(H)::QAR2(C),XP(g)
      • S(a);N_GUARD::QAB(C),XS(a)
      • S(a);N_GUARD::QAB(C)
      • P(i);N_GUARD::QAB1(C)
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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).