MESON Chess Problem Database

Problem Display
PID: 165417 (7K/4p3/6b1/4N3/2R1rn2/b4Q2/3pPpN1/3k4 w - - 0 1)

Cumpe, Josef

La Strategie, 1934

7K/4p3/6b1/4N3/2R1rn2/b4Q2/3pPpN1/3k4

#2

6 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2
      • 2.Qb3#
    • 1...Sd3
      • 2.e3#
    • 1...Sh3
      • 2.e3#
    • 1...Sd5
      • 2.e3#
    • 1...Sh5
      • 2.e3#
    • 1...Se6
      • 2.e3#
    • 1...f1Q
      • 2.Qxf1#
    • 1...f1S
      • 2.Qxf1#
    • 1...f1B
      • 2.Qxf1#
    • 1...f1R
      • 2.Qxf1#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sxf2#
      • 1...Bb2+
        • 2.Sxb2#
      • 1...Rxc4
        • 2.Se3#
      • 1...Sxg2
        • 2.e3#
      • 1...Sxd3
        • 2.e3#
      • 1...f1Q
        • 2.Qxf1#
      • 1...f1S
        • 2.Sf2#
        • 2.Qxf1#
      • 1...f1B
        • 2.Sf2#
        • 2.Qxf1#
      • 1...f1R
        • 2.Qxf1#
      • 1...Bc5
        • 2.Sb2#
      • 1...Sh3
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • S(f);P_SPINS(f),SBLOCK,XP(A)::QAB(C)
    • S(f);N_GUARD::QAB(C)+P(A)
    • P(c);OGATE::QAR2(C),XQ(c)
    • P(c);OGATE::QAR2(C),XS(c)
    • P(c);OGATE::QAR2(C),XB(c)
    • P(c);OGATE::QAR2(C),XR(c)
  • Actual
    • S(E);
    • Threat
      • S(E),XP(c)
    • Vars
      • B(d);CHECK,N_GUARD::S(E),XB(d)
      • R(e);N_GUARD,XR(D)::S(B)
      • S(f);N_GUARD,XS(B)::QAB(C)+P(A)
      • S(f);N_GUARD,XS(E)::QAB(C)+P(A)
      • P(c);OGATE::QAR2(C),XQ(c)
      • P(c);OGATE::QAR2(C),XR(c)
      • B(d);N_GUARD::S(E)
      • S(f);N_GUARD::QAB(C)+P(A)
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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).