MESON Chess Problem Database

Problem Display
PID: 158106 (8/8/8/1b6/6n1/8/1N4Q1/4k1K1 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1986

8/8/8/1b6/6n1/8/1N4Q1/4k1K1

#2

3 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sh2
      • 2.Qf2#
    • 1...Se3
      • 2.Qf2#
    • 1...Se5
      • 2.Qf2#
    • 1...Sf6
      • 2.Qf2#
    • 1...Sh6
      • 2.Qf2#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qf1#
        • 2.Qd2#
      • 1...Kd1
        • 2.Qd2#
      • 1...Sf2
        • 2.Qf1#
      • 1...Sh2
        • 2.Qd2#
      • 1...Se3
        • 2.Qd2#
      • 1...Bxc4!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qd1#
      • 1...Be2
        • 2.Qc3#
      • 1...Ba4
        • 2.Sd3#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Se3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::QAB1(C),XS(b)
    • S(b);N_GUARD::QAB1(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • S(b);::QAR1(C)
        • S(b);::QAB1(C)
      • Refutation
        • B(c);XS(B)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • B(c);SBLOCK::QAB(C)
      • B(c);N_GUARD::S(B)
      • S(b);N_GUARD::QAB1(C),XS(b)
      • S(b);N_GUARD::QAB1(C)
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).