MESON Chess Problem Database

Problem Display
PID: 163316 (8/N4n2/KB1pR3/n2k1ppR/7b/8/4Q3/8 w - - 0 1)

Supp, Walter

stern, 1995

(First published on Thu Aug 31 1995)

8/N4n2/KB1pR3/n2k1ppR/7b/8/4Q3/8

#2

6 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Qa2#
    • 1...Sb7
      • 2.Qa2#
    • 1...f4
      • 2.Qe4#
    • 1...g4
      • 2.Qe4#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sb4#
        • 2.Se7#
      • 1...Kxc6
        • 2.Qb5#
      • 1...Sxc6
        • 2.Qa2#
      • 1...Be1
        • 2.Se7#
      • 1...g4
        • 2.Sb4#
        • 2.Qe4#
      • 1...Se5!
    • 1.Rf6?
      • threat
        • 2.Qe6#
      • 1...Sd8
        • 2.Rxf5#
      • 1...Se5!
    • 1.Re7?
      • threat
        • 2.Qd3#
        • 2.Qb5#
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe6#
      • 1...Sb3
        • 2.Qe6#
      • 1...Sc4
        • 2.Qd3#
        • 2.Qf3#
        • 2.Qg2#
        • 2.Qe6#
      • 1...Sc6
        • 2.Qb5#
        • 2.Qa2#
        • 2.Qe6#
      • 1...Sb7
        • 2.Qd3#
        • 2.Qa2#
        • 2.Qe6#
      • 1...Sd8
        • 2.Qd3#
        • 2.Qb5#
      • 1...Se5!
    • 1.Re8?
      • threat
        • 2.Qd3#
        • 2.Qb5#
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe6#
      • 1...Sb3
        • 2.Qe6#
      • 1...Sc4
        • 2.Qd3#
        • 2.Qf3#
        • 2.Qg2#
        • 2.Qe6#
      • 1...Sc6
        • 2.Qb5#
        • 2.Qa2#
        • 2.Qe6#
      • 1...Sb7
        • 2.Qd3#
        • 2.Qa2#
        • 2.Qe6#
      • 1...Sd8
        • 2.Qd3#
        • 2.Qb5#
      • 1...Se5!
    • 1.Qa2+?
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sc4!
  • Keys
    • 1.Sc8!
      • threat
        • 2.Se7#
      • 1...Kc6
        • 2.Qb5#
      • 1...Se5
        • 2.Rxd6#
      • 1...Sc6
        • 2.Qa2#
      • 1...g4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD::QAB(A)
    • P(d);N_GUARD,P_SPINP(e)::QAB1(A)
    • P(e);P_SPINP(d)::QAB1(A)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P_SPINP(f),S_FLIGHT,XS(F)::QAB1(A)
        • S(b);N_GUARD,SBLOCK,XS(F)::QAB(A)
        • B(a);::S(F)
      • Refutation
        • S(g);
    • Try
      • R(E);
      • Threat
        • QAB1(A)
      • Vars
        • S(g);N_GUARD::R(E),XP(d)
      • Refutation
        • S(g);
    • Try
      • R(E);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::QAB1(A)
        • S(b);::QAB1(A)
      • Refutation
        • S(g);
    • Try
      • R(E);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::QAB1(A)
        • S(b);::QAB1(A)
      • Refutation
        • S(g);
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB(A),XS(b)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(c);P_SPINP(f),S_FLIGHT::QAB1(A)
      • S(g);N_GUARD::R1(E),XP(f)
      • S(b);N_GUARD,SBLOCK::QAB(A)
      • P(e);P_SPINP(d)::QAB1(A)
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).