MESON Chess Problem Database

Problem Display
PID: 65254 (8/8/8/2b5/6Q1/2pk2n1/2N5/3K4 w - - 0 1)

Lincoln, Robert A

Comm., Amirov MT, 2004

8/8/8/2b5/6Q1/2pk2n1/2N5/3K4

#2

3 + 4

145 StrateGems 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qd4#
    • 1...Be3
      • 2.Se1#
      • 2.Sb4#
    • 1...Bb4
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bd6
      • 2.Qd4#
    • 1...Be7
      • 2.Qd4#
    • 1...Bf8
      • 2.Qd4#
    • 1...Sf1
      • 2.Qe2#
    • 1...Sh1
      • 2.Qe2#
    • 1...Se2
      • 2.Qxe2#
    • 1...Se4
      • 2.Qe2#
    • 1...Sf5
      • 2.Qe2#
    • 1...Sh5
      • 2.Qe2#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Se1#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Se4
        • 2.Qf1#
      • 1...Bf2
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • B(d);N_GUARD::QAR1(C)
    • B(d);N_GUARD::QAR1(C),XB(d)
    • S(c);N_GUARD::QAB1(C)
    • S(c);N_GUARD::QAB1(C),XS(c)
  • Actual
    • Q(C);
    • Threat
      • S(B)
    • Vars
      • B(d);N_GUARD::QAR1(C),XB(d)
      • S(c);N_GUARD,SBLOCK::QAB(C)
      • B(d);N_GUARD::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).