MESON Chess Problem Database

Problem Display
PID: 160167 (8/8/3Q2N1/8/5p1q/6kP/8/6K1 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1987

8/8/3Q2N1/8/5p1q/6kP/8/6K1

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qd3#
    • 1...Qxh3
      • 2.Qxf4#
  • Tries
    • 1.Qxf4+?
      • 1...Kxh3
        • 2.Qxh4#
      • 1...Qxf4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qg2#
      • 1...Kf3
        • 2.Qd3#
      • 1...Kxh3
        • 2.Qg2#
      • 1...Qxh3
        • 2.Qxf4#
      • 1...f3
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
    • Q(c);N_GUARD,SBLOCK,XP(B)::QAB1(C),XP(b)
  • Tries
    • Try
      • Q(C);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT,XP(B)::QAR1(C),XQ(c)
      • Refutation
        • Q(c);XQ(C)
  • Actual
    • Q(C);N_PINP(b)
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • K(a);P-FLIGHT,XP(B)::QAB1(C)
      • Q(c);N_GUARD,SBLOCK,XP(B)::QAB1(C),XP(b)
      • P(b);SBLOCK::QAB1(C)
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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).