MESON Chess Problem Database

Problem Display
PID: 79956 (4n1Q1/q7/4p3/1P1kP3/NppP1n2/b1P5/2N5/1K2R2b w - - 0 1)

Supp, Walter

Badische Neueste Nachrichten, 1994

4n1Q1/q7/4p3/1P1kP3/NppP1n2/b1P5/2N5/1K2R2b

#2

9 + 9

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Sxb6#
    • 1...Qd7
      • 2.Sb6#
    • 1...Qe7
      • 2.Sb6#
    • 1...Qf7
      • 2.Sb6#
    • 1...Qg7
      • 2.Sb6#
    • 1...Qh7
      • 2.Sb6#
    • 1...Qa8
      • 2.Sb6#
    • 1...Bc1
      • 2.Sxb4#
    • 1...Bb2
      • 2.Sxb4#
    • 1...Sc7
      • 2.Qd8#
    • 1...bxc3
      • 2.Sxc3#
  • Keys
    • 1.Qh7!
      • threat
        • 2.Se3#
      • 1...Qxd4
        • 2.Qb7#
      • 1...Qxh7
        • 2.Sb6#
      • 1...bxc3
        • 2.Sxc3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bc1
        • 2.Sxb4#
      • 1...Sg2
        • 2.Qe4#
      • 1...Sg6
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(h);N_GUARD::S(E),XQ(h)
    • Q(h);N_GUARD::S(E)
    • Q(h);N_GUARD,N_SPINP(g)::S(E)
    • Q(h);N_GUARD,P_PINS(C)::S(E)
    • B(b);N_GUARD::S(C),XP(c)
    • S(i);OGATE::QAR(I)
    • P(c);XP(D)::S(E),XP(c)
  • Actual
    • Q(I);N_PINP(g)
    • Threat
      • S(C)
    • Vars
      • Q(h);N_GUARD,XP(F)::QAB(I)
      • Q(h);N_GUARD,P_PINS(C),XQ(I)::S(E)
      • P(c);XP(D)::S(E),XP(c)
      • B(a);N_GUARD,P_PINS(C)::QAB1(I),XB(a)
      • B(b);N_GUARD::S(C),XP(c)
      • S(e);S_CUTB(a)::QAB1(I)
      • S(e);N_GUARD::QAB(I),XB(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).