MESON Chess Problem Database

Problem Display
PID: 267852 (4K2b/3Q3B/8/2Pp1P2/3kN2R/3Np1B1/2q1P3/2Rr3r w - - 0 1)

Salardini, Erio

Comm., El Diluvio, 1932-1933

4K2b/3Q3B/8/2Pp1P2/3kN2R/3Np1B1/2q1P3/2Rr3r

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qa4#
    • 1...Qa4
      • 2.Qxa4#
  • Tries
    • 1.Be5+?
      • 1...Kc4
        • 2.Sd2#
        • 2.Qa4#
      • 1...Bxe5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qxd5#
      • 1...Qxe4+
        • 2.Se6#
      • 1...Kc4
        • 2.Qa4#
      • 1...Kxe4
        • 2.Sh3#
      • 1...Ke5
        • 2.Se6#
      • 1...Qxc5
        • 2.Se6#
      • 1...Qb3
        • 2.Se6#
      • 1...Qa4
        • 2.Se6#
      • 1...Qa2
        • 2.Se6#
      • 1...Qc4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINP(f),P-FLIGHT,P_SPINQ(c)::QAR2(I)
    • Q(c);N_GUARD,P_PINQ(I)::QAR(I),XQ(c)
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • B(g);XB(D)
  • Actual
    • S(C);
    • Threat
      • QAR1(I),XP(f)
    • Vars
      • Q(c);CHECK,XS(E)::S(C)
      • K(e);N_GUARD,N_SPINP(f),P-FLIGHT,P_SPINQ(c)::QAR2(I)
      • K(e);N_SPINP(f),P-FLIGHT,XS(E)::R(F)+S(C)
      • K(e);N_GUARD,N_SPINP(f),S_FLIGHT::B(D)+S(C)
      • Q(c);XP(G)::S(C)
      • Q(c);::S(C)
      • Q(c);P_PINQ(I)::S(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).