MESON Chess Problem Database

Problem Display
PID: 178806 (3R2Q1/K1k2Pn1/P3n2r/6B1/1N1p1q2/b3P2b/8/3r4 w - - 0 1)

Antipin, Ivan Ivanovich

Dikusarov, Andrey Nikolayovich

Sachmatija, 2013

3R2Q1/K1k2Pn1/P3n2r/6B1/1N1p1q2/b3P2b/8/3r4

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf7
      • 2.Qxf7#
    • 1...Sxd8
      • 2.Qxd8#
    • 1...Se8
      • 2.fxe8S#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Sd5#
        • 2.Rd7#
        • 2.Qc6#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Qxg5
        • 2.Rd7#
        • 2.Qd7#
      • 1...Qxf7
        • 2.Sd5#
        • 2.Qc6#
        • 2.Qxf7#
      • 1...Bxb4
        • 2.Qd7#
      • 1...Sxg5
        • 2.Sd5#
      • 1...Sxd8
        • 2.Qxd8#
      • 1...Sxe8
        • 2.fxe8S#
      • 1...dxe3
        • 2.Qc6#
      • 1...Qe5
        • 2.Rd7#
        • 2.Qc6#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Qd6
        • 2.Rc8#
      • 1...Qf3
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Qe4
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Qf5
        • 2.Rd7#
        • 2.Qc6#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Qf6
        • 2.Sd5#
        • 2.Rd7#
        • 2.Qd7#
      • 1...Rc1
        • 2.Sd5#
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Rf6
        • 2.Sd5#
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Bg2
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Sc5
        • 2.Sd5#
      • 1...Sf8
        • 2.Sd5#
      • 1...Sf5
        • 2.Sd5#
        • 2.Rd7#
        • 2.Qc6#
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(e);OGATE,XP(F)::QAR(H),XQ(e)
    • S(f);OGATE,XR(G)::QAB1(H),XS(f)
    • S(i);OGATE::PXS(i)=S
  • Actual
    • Q(H);
    • Threat
      • DUALS(5)
    • Vars
      • B(b);XS(B)::QAR1(H)
      • S(f);XB(C)::S(B)
      • S(f);OGATE,XR(G)::QAB1(H),XS(f)
      • S(i);OGATE,XQ(H)::PXS(i)=S
      • P(d);XP(A)::QAR1(H)
      • Q(e);SBLOCK::R1(G)
      • S(f);::S(B)
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).