MESON Chess Problem Database

Problem Display
PID: 15984 (6bQ/1p4rp/Npk3pP/1p4Kp/PB3RBP/4N3/8/8 w - - 0 1)

Janev, Zoran

Die Schwalbe, 2000

6bQ/1p4rp/Npk3pP/1p4Kp/PB3RBP/4N3/8/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Sb8#
    • 1...Rf7
      • 2.Qc3#
    • 1...Bf7
      • 2.Qc8#
  • Tries
    • 1.Qxg7?
      • threat
        • 2.Sb8#
        • 2.Bd7#
        • 2.Qc7#
        • 2.Qd7#
      • 1...bxa4
        • 2.Bd7#
        • 2.Qd7#
      • 1...hxg4
        • 2.Sb8#
        • 2.Qc7#
      • 1...bxa6
        • 2.Qd7#
      • 1...Be6
        • 2.Sb8#
        • 2.Qc7#
      • 1...Bf7!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Sb8#
        • 2.Bf3#
        • 2.Bd7#
      • 1...Rxf7
        • 2.Qc3#
      • 1...Bxf7
        • 2.Qc8#
      • 1...bxa4
        • 2.Bd7#
      • 1...hxg4
        • 2.Sb8#
      • 1...bxa6
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::S(H)
    • R(g);OGATE::QAR(J)
    • B(i);OGATE::QAR2(J)
  • Tries
    • Try
      • Q(J);XR(g)
      • Threat
        • DUALS(4)
      • Vars
        • P(f);XS(H)::QAB1(J)
      • Refutation
        • B(i);
  • Actual
    • R(D);
    • Threat
      • DUALS(3)
    • Vars
      • R(g);OGATE,XR(D)::QAR(J)
      • B(i);OGATE,XR(D)::QAR2(J)
      • P(a);XP(B)::B(E)
      • P(b);XB(E)::S(H)
      • P(f);XS(H)::B(E)
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).