MESON Chess Problem Database

Problem Display
PID: 136255 (4R3/1p3p2/3p1k2/3q1P2/2NN3P/8/8/BB1K2R1 w - - 0 1)

Vane Bor

Source?, 0000

4R3/1p3p2/3p1k2/3q1P2/2NN3P/8/8/BB1K2R1

#2

9 + 5

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Se2#
      • 2.Sb3#
      • 2.Sf3#
      • 2.Sb5#
      • 2.Sc6#
      • 2.Se6#
    • 1...Qg2
      • 2.Se2#
    • 1...Qf3+
      • 2.Sxf3#
    • 1...Qc6
      • 2.Se2#
      • 2.Sb3#
      • 2.Sf3#
      • 2.Sb5#
      • 2.Sxc6#
      • 2.Se6#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qxd4+
      • 2.Bxd4#
    • 1...Qb5
      • 2.Sxb5#
    • 1...Qxf5
      • 2.Sxf5#
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sxd5#
        • 2.Sd7#
      • 1...Qb3+
        • 2.Sxb3#
      • 1...Qf3+
        • 2.Sxf3#
      • 1...Qxd4+
        • 2.Bxd4#
      • 1...Qxf5
        • 2.Sxf5#
      • 1...Qg2
        • 2.Se2#
      • 1...Qe6
        • 2.Sxe6#
      • 1...Qa2
        • 2.Sd7#
      • 1...Qh1
        • 2.Se2#
        • 2.Sb3#
        • 2.Sf3#
        • 2.Sb5#
        • 2.Sc6#
        • 2.Se6#
        • 2.Sd7#
      • 1...Qc4
        • 2.Sd7#
      • 1...Qe4
        • 2.Sd7#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Qa5
        • 2.Sd7#
      • 1...Qb5
        • 2.Sxb5#
      • 1...Qc5
        • 2.Sd7#
      • 1...Qe5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_PINS(F)::B(A)+S(F)
    • Q(a);CHECK,N_PINS(F)::B(A)+S(F),XQ(a)
    • Q(a);N_PINS(F)::B(A)+S(F),XQ(a)
    • Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::B(A),XQ(a)
    • Q(a);N_PINS(F),XP(H)::B(A)+S(F),XQ(a)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(a);CHECK,N_PINS(F)::B(A)+S(F),XQ(a)
      • Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::B(A),XQ(a)
      • Q(a);N_PINS(F),XP(H)::B(A)+S(F),XQ(a)
      • Q(a);N_PINS(F)::B(A)+S(F)
      • Q(a);N_PINS(F)::B(A)+S(F),XQ(a)
      • Q(a);N_PINS(F)::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).