MESON Chess Problem Database

Problem Display
PID: 170119 (4n1b1/4p3/1pQ1B3/1p1NkP1n/7P/4KP2/4P3/6r1 w - - 0 1)

Kupper, Josef

Tages-Anzeiger, 2016

4n1b1/4p3/1pQ1B3/1p1NkP1n/7P/4KP2/4P3/6r1

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Qxe6#
    • 1...Sg3
      • 2.f4#
    • 1...Shf6
      • 2.f4#
    • 1...Shg7
      • 2.f4#
    • 1...Sd6
      • 2.Qc3#
    • 1...Sef6
      • 2.Qc7#
    • 1...Sc7
      • 2.Qxc7#
    • 1...Seg7
      • 2.Qc7#
  • Tries
    • 1.Sxb6?
      • threat
        • 2.Sd7#
      • 1...Kf6
        • 2.Qc3#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Shf6
        • 2.f4#
      • 1...Sef6
        • 2.Qc7#
      • 1...Rd1!
    • 1.Qc7+?
      • 1...Sd6
        • 2.Qc3#
      • 1...Sxc7!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Qc3#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Shxf6
        • 2.f4#
      • 1...Sexf6
        • 2.Qc7#
      • 1...exf6
        • 2.Qd5#
      • 1...Rd1
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(h);OGATE,XB(H)::QAR1(G),XB(h)
    • S(d);N_GUARD::P(C)
    • S(g);SBLOCK::QAB(G)
    • S(g);N_GUARD::QAB(G)
    • S(g);N_GUARD::QAB(G),XS(g)
  • Tries
    • Try
      • S(E);XP(e)
      • Threat
        • S(E)
      • Vars
        • K(c);S_FLIGHT::QAB(G)
        • B(h);OGATE,XB(H)::QAR1(G),XB(h)
        • S(d);N_GUARD,SBLOCK::P(C)
        • S(g);N_GUARD,SBLOCK::QAB(G)
      • Refutation
        • R(a);
    • Try
      • Q(G);CHECK
      • Vars
        • S(g);P_SPINS(g),SBLOCK::QAB(G)
      • Refutation
        • S(g);XQ(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT,XS(E)::QAB(G)
      • B(h);OGATE,XB(H)::QAR1(G),XB(h)
      • S(d);N_GUARD,SBLOCK,XS(E)::P(C)
      • S(g);N_GUARD,SBLOCK,XS(E)::QAB(G)
      • P(f);SBLOCK,XS(E)::QAR1(G)
      • R(a);N_GUARD::S(E)
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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).