Problem Display
PID: 240313 (3R1Q2/8/3P4/1p1B1P2/1P2n3/R1PkN1p1/1P1p2P1/3N1K2 w - - 0 1)

Maleika, Gerhard

Problem-Forum, 2004

3R1Q2/8/3P4/1p1B1P2/1P2n3/R1PkN1p1/1P1p2P1/3N1K2

#2

13 + 5


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Qg7?
      • threat
        • 2.Qd4#
      • 1...Sxc3
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Sf6!
    • 1.Qf6?
      • threat
        • 2.Qd4#
      • 1...Sxc3
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Sxf6!
    • 1.Qh8?
      • threat
        • 2.Qd4#
      • 1...Sxc3
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Sf6!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Bxe4#
        • 2.Qxb5#
        • 2.Qxe4#
      • 1...Sxc3
        • 2.Qe4#
      • 1...Sxd6
        • 2.Be4#
      • 1...Sf2
        • 2.Qxb5#
      • 1...Sc5
        • 2.Qxb5#
      • 1...Sg5
        • 2.Qxb5#
      • 1...Sf6
        • 2.Qxb5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(M);
      • Threat
        • QAR1(M)
      • Refutation
        • S(d);
    • Try
      • Q(M);
      • Threat
        • QAR1(M)
      • Refutation
        • S(d);XQ(M)
    • Try
      • Q(M);
      • Threat
        • QAR1(M)
      • Refutation
        • S(d);
  • Actual
    • Q(M);
    • Threat
      • DUALS(3)
    • Vars
      • S(d);P_SPINS(d),XP(F)::QAB1(M)
      • S(d);XP(K)::B(I)
      • S(d);::QAB(M),XP(e)


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).