MESON Chess Problem Database

Problem Display
PID: 52008 (1B1N4/5K2/1p3p2/8/2QPk1B1/8/2P3N1/b2rr3 w - - 0 1)

Onkoud, Abdelaziz

Die Schwalbe, 2004

(First published on Thu Apr 1 2004)

1B1N4/5K2/1p3p2/8/2QPk1B1/8/2P3N1/b2rr3

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.cxd3#
    • 1...Rxd4
      • 2.Qe6#
    • 1...Bxd4
      • 2.Qc6#
  • Tries
    • 1.Qd3+?
      • 1...Kd5
        • 2.Sf4#
        • 2.c4#
      • 1...Rxd3!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Sd6#
      • 1...Rxd4
        • 2.Qe6#
      • 1...Bxd4
        • 2.Qc6#

There are these versions: 56570

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE::P(A),XR(b)
    • R(b);P_SPINR(b),SBLOCK,XP(D)::QAR2(C)
    • B(a);P_SPINB(a),SBLOCK,XP(D)::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • R(b);XQ(C)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • R(b);P_SPINR(b),SBLOCK,XP(D)::QAR2(C)
      • B(a);P_SPINB(a),SBLOCK,XP(D)::QAB(C)
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).