MESON Chess Problem Database

Problem Display
PID: 232495 (3R2r1/Kn2N3/p2p3Q/2k3P1/PpqN1P2/1B6/4P3/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2012

3R2r1/Kn2N3/p2p3Q/2k3P1/PpqN1P2/1B6/4P3/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Se6#
    • 1...Qb5
      • 2.Se6#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qc1
      • 2.Se6#
    • 1...Qc2
      • 2.Se6#
    • 1...Qc3
      • 2.Se6#
    • 1...Sa5
      • 2.Qxd6#
    • 1...d5
      • 2.Se6#
      • 2.Qb6#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxc4#
      • 1...Kxd4
        • 2.Qe5#
      • 1...Qxe2
        • 2.Qd5#
      • 1...Qxb3
        • 2.Sxb3#
      • 1...Qxe6
        • 2.Sxe6#
      • 1...Qxd4
        • 2.Qc8#
      • 1...Qd3
        • 2.Qd5#
      • 1...Qb5
        • 2.Qd5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qc1
        • 2.Qd5#
      • 1...Qc2
        • 2.Qd5#
      • 1...Qc3
        • 2.Qd5#
      • 1...Sa5
        • 2.Qxd6#
      • 1...d5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD::S(D)
    • Q(b);N_GUARD::S(D),XQ(b)
    • S(f);N_GUARD::QAB1(G),XP(e)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G),XQ(b)
    • Vars
      • K(c);P_SPINP(e),S_FLIGHT,XS(D)::QAB1(G)
      • Q(b);N_GUARD,XP(A)::QAR1(G)
      • Q(b);XB(B)::S(D),XQ(b)
      • Q(b);XQ(G)::S(D),XQ(b)
      • Q(b);SBLOCK,XS(D)::QAR(G)
      • Q(b);N_GUARD::QAR1(G)
      • Q(b);N_GUARD::QAR1(G),XQ(b)
      • S(f);N_GUARD::QAB1(G),XP(e)
      • P(e);OGATE::QAB1(G)
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).