MESON Chess Problem Database

Problem Display
PID: 11007 (1K1R4/1Qpbp1NB/4p2q/2pn4/3k2N1/p3p3/1r1P4/B1R5 w - - 0 1)

Novejarque Iranzo, Francisco

1st Prize, BCF 019. Ty., 1935-1936

1K1R4/1Qpbp1NB/4p2q/2pn4/3k2N1/p3p3/1r1P4/B1R5

#2

9 + 11

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Qe4#
    • 1...Sf4
      • 2.dxe3#
    • 1...Sb6
      • 2.Qe4#
    • 1...Sf6
      • 2.Sxe6#
  • Tries
    • 1.Bxb2+?
      • 1...Sc3
        • 2.Qe4#
      • 1...axb2!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Rc4#
      • 1...c4
        • 2.Rxc4#
      • 1...Bb5
        • 2.Qc3#
      • 1...Sc3
        • 2.dxc3#
      • 1...Sb4
        • 2.Qc4#
      • 1...Sf4
        • 2.dxe3#
      • 1...Sb6
        • 2.Qd3#
      • 1...Sf6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);N_PINQ(E),P_SPINB(j)::QAR1(E)
    • S(f);N_GUARD,P_SPINB(j),S_CUTQ(h)::P(C),XP(c)
    • S(f);P_SPINB(j),S_CUTQ(h)::S(F),XP(g)
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(E),XR(a)
      • Vars
        • S(f);OGATE,P_SPINB(j),P_SPINS(f)::QAR1(E)
      • Refutation
        • P(b);XB(A)
  • Actual
    • Q(E);
    • Threat
      • R1(B)
    • Vars
      • P(e);::R1(B),XP(e)
      • B(j);N_PINQ(E),P_SPINS(f)::QAB1(E)
      • S(f);N_SPINR(a),OGATE,P_SPINB(j)::P(C),XS(f)
      • S(f);N_PINQ(E),P_SPINB(j)::QAR1(E)
      • S(f);N_GUARD,P_SPINB(j),S_CUTQ(h)::P(C),XP(c)
      • S(f);P_SPINB(j),S_CUTQ(h)::S(F),XP(g)
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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).