MESON Chess Problem Database

Problem Display
PID: 74323 (n2b1K2/4p3/pr2k3/p1Q5/P2PN1n1/8/2B5/8 w - - 0 1)

Lancia, Ugo

Tijdschrift vd KNSB, 1938

n2b1K2/4p3/pr2k3/p1Q5/P2PN1n1/8/2B5/8

#2

6 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kd7!
  • Keys
    • 1.Sf6!
      • 1...Kxf6
        • 2.Qf5#
      • 1...Sxf6
        • 2.Bf5#
      • 1...exf6
        • 2.Bf5#
      • 1...Bc7
        • 2.Qxe7#
      • 1...Rb1
        • 2.Qc6#
      • 1...Rb2
        • 2.Qc6#
      • 1...Rb3
        • 2.Qc6#
      • 1...Rb4
        • 2.Qc6#
      • 1...Rb5
        • 2.Qc6#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Rd6
        • 2.Qf5#
      • 1...Rb7
        • 2.Qc6#
      • 1...Rb8
        • 2.Qc6#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sh2
        • 2.Qe5#
      • 1...Se3
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sh6
        • 2.Qe5#
      • 1...Sc7
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(e);P-FLIGHT,XS(D)::QAR1(E)
      • S(a);SBLOCK,XS(D)::B(A)
      • P(f);SBLOCK,XS(D)::B(A)
      • B(h);N_GUARD::QAR1(E),XP(f)
      • R(d);N_GUARD::QAR2(E)
      • R(d);N_GUARD::QAR2(E),XR(d)
      • R(d);SBLOCK::QAB1(E)
      • S(a);N_GUARD::QAR1(E)
      • S(a);N_GUARD::QAR1(E),XS(a)
      • S(g);N_GUARD,S_CUTB(h)::QAR(E),XR(d)
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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).