MESON Chess Problem Database

Problem Display
PID: 158104 (8/4n3/8/2B1k3/Q3B1K1/8/3n4/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1986

8/4n3/8/2B1k3/Q3B1K1/8/3n4/8

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1+?
      • 1...Kxe4
        • 2.Qd4#
      • 1...Ke6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxe7#
      • 1...Kxe4
        • 2.Qd4#
      • 1...Kf6
        • 2.Qxe7#
      • 1...Sxe4
        • 2.Bd4#
      • 1...Sd5
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sc6
        • 2.Qf5#
      • 1...Sg6
        • 2.Qf5#
      • 1...Sc8
        • 2.Qf5#
      • 1...Sg8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(B)::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR2(A),XS(c)
    • Vars
      • K(b);P-FLIGHT,XB(B)::QAR1(A)
      • K(b);S_FLIGHT::QAB1(A),XS(c)
      • S(a);SBLOCK,XB(B)::B(D)
      • S(c);N_GUARD::QAR1(A)
      • S(c);N_GUARD::QAR1(A),XS(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).