MESON Chess Problem Database

Problem Display
PID: 135792 (3Q4/1R1KP1q1/b1N1pkpb/6p1/6P1/8/8/3R4 w - - 0 1)

Djurasevic, Branislav

4/6 Place, AGM, 2009

3Q4/1R1KP1q1/b1N1pkpb/6p1/6P1/8/8/3R4

#2

7 + 7

721 Variantim 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.e8Q#
    • 1...Qf8
      • 2.exf8Q#
    • 1...Qxe7+
      • 2.Qxe7#
    • 1...Bf1
      • 2.Rxf1#
    • 1...Bxb7
      • 2.Rf1#
  • Keys
    • 1.Kd6!
      • threat
        • 2.e8S#
      • 1...Qxe7+
        • 2.Qxe7#
      • 1...Kf7
        • 2.e8Q#
      • 1...Bxb7
        • 2.Rf1#
      • 1...Qf8
        • 2.exf8Q#
        • 2.exf8S#
        • 2.exf8B#
        • 2.exf8R#
      • 1...Qh8
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...Qg8
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(d);N_PINP(F),P-FLIGHT::P=Q
    • Q(g);N_PINP(F)::PXQ(g)=Q
    • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAB1(G),XQ(g)
    • B(b);N_GUARD::R(A),XB(b)
    • B(b);N_GUARD,XR(D)::R(A)
  • Actual
    • K(E);N_SPINP(F),P-FLIGHT
    • Threat
      • P=S
    • Vars
      • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAB1(G),XQ(g)
      • K(d);P-FLIGHT::P=Q
      • B(b);N_GUARD,XR(D)::R(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).