MESON Chess Problem Database

Problem Display
PID: 89959 (2K3n1/2p3B1/1bR5/3kNN2/P2n4/3p1p2/2B5/4Q3 w - - 0 1)

Milewski, Stefan

Die Schwalbe, 1998

2K3n1/2p3B1/1bR5/3kNN2/P2n4/3p1p2/2B5/4Q3

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Bxb3#
    • 1...Sb5
      • 2.Bb3#
    • 1...Se6
      • 2.Bb3#
    • 1...Sf6
      • 2.Se7#
    • 1...Sh6
      • 2.Se7#
    • 1...Se7+
      • 2.Sxe7#
    • 1...d2
      • 2.Se3#
      • 2.Be4#
      • 2.Qe4#
  • Tries
    • 1.Rd6+?
      • 1...Kc5
        • 2.Qc3#
      • 1...cxd6!
    • 1.Qh4?
      • threat
        • 2.Se3#
      • 1...Se7+
        • 2.Sxe7#
      • 1...Sxc2
        • 2.Qc4#
      • 1...Sxf5
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sxc6
        • 2.Qc4#
      • 1...Se2
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sb3
        • 2.Bxb3#
        • 2.Qc4#
      • 1...Sb5
        • 2.Bb3#
        • 2.Qc4#
      • 1...Se6
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sf6!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Sb4#
      • 1...Se7+
        • 2.Sxe7#
      • 1...Kxc6
        • 2.Qe4#
      • 1...Sxc2
        • 2.Qe6#
      • 1...Sxc6
        • 2.Bb3#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Ba5
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::B(B),XS(c)
    • S(c);N_GUARD::B(B)
    • S(g);N_GUARD::S(E)
    • S(g);CHECK,N_GUARD::S(E),XS(g)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • P(f);XR(F)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • S(g);CHECK,N_GUARD::S(E),XS(g)
        • S(c);OGATE,XB(B)::QAB1(A)
        • S(c);OGATE,XR(F)::QAB1(A)
      • Refutation
        • S(g);
  • Actual
    • S(D);XP(a)
    • Threat
      • S(D)
    • Vars
      • S(g);CHECK,N_GUARD::S(E),XS(g)
      • K(d);S_FLIGHT,XR(F)::QAB(A)
      • S(c);N_GUARD,XB(B)::QAB1(A)
      • S(c);N_GUARD,SBLOCK,XR(F)::B(B)
      • B(e);N_GUARD::R1(F),XB(e)
      • B(e);N_GUARD::R1(F)
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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).