MESON Chess Problem Database

Problem Display
PID: 6593 (3r3q/5Q2/4n3/2P2n2/R2BkN2/8/K1P3P1/1B1N2b1 w - - 0 1)

Hannemann, Knud Harald

Aarsskrift for DSK, 1932

3r3q/5Q2/4n3/2P2n2/R2BkN2/8/K1P3P1/1B1N2b1

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Sc3#
    • 1...Sg3
      • 2.Sc3#
      • 2.c3#
    • 1...Sh4
      • 2.Sc3#
      • 2.c3#
    • 1...Sd6
      • 2.Sc3#
      • 2.c3#
    • 1...Sh6
      • 2.Sc3#
      • 2.c3#
    • 1...Se7
      • 2.Sc3#
      • 2.c3#
    • 1...Sfg7
      • 2.Sc3#
      • 2.c3#
    • 1...Sxf4
      • 2.Sc3#
  • Tries
    • 1.Qxe6+?
      • 1...Qe5
        • 2.Qxe5#
      • 1...Kxf4!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Sc3#
      • 1...Kd5
        • 2.Qb7#
      • 1...Qxd4
        • 2.Qxe6#
      • 1...Rxd4
        • 2.Qb7#
      • 1...Bxd4
        • 2.c4#
      • 1...Sfxd4
        • 2.Qf3#
      • 1...Sexd4
        • 2.c3#
      • 1...Qh3
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • S(c);::S(B)
    • S(d);SBLOCK,XS(H)::S(B)
  • Tries
    • Try
      • Q(J);CHECK,XS(d)
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::QAR1(J),XQ(f)
      • Refutation
        • K(b);P-FLIGHT,XS(H)
  • Actual
    • S(H);
    • Threat
      • S(B)
    • Vars
      • K(b);P_SPINS(d),S_FLIGHT::QAB(J)
      • Q(f);N_GUARD,P_SPINQ(f),XB(G)::QAR2(J),XS(d)
      • R(e);N_GUARD,P_SPINR(e),XB(G)::QAB(J)
      • B(a);P_SPINB(a),SBLOCK,XB(G)::B(A)+P(D)
      • S(c);OGATE,P_SPINS(c),XB(G)::QAB1(J)
      • S(d);P_SPINS(d),XB(G)::B(A)+P(D)
      • Q(f);N_GUARD::QAR2(J),XS(d)
HTML5 logo

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).