MESON Chess Problem Database

Problem Display
PID: 171391 (3Q4/8/2N5/1k1N4/1P2B3/8/8/2K5 w - - 0 1)

Antipov, Viacheslav Pavlovich

Minimat, 1995

3Q4/8/2N5/1k1N4/1P2B3/8/8/2K5

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Qb6#
    • 1...Kxc6
      • 2.Sc3#
  • Tries
    • 1.Kb2?
      • 1...Ka4
        • 2.Sc3#
        • 2.Qa5#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxc6
        • 2.Sc3#
      • 1...Kc4!
    • 1.Sc7+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kb6
        • 2.Qb8#
      • 1...Ka4!
    • 1.Sd4+?
      • 1...Ka4
        • 2.Qa5#
        • 2.Qa8#
      • 1...Ka6
        • 2.Qb6#
        • 2.Qa8#
      • 1...Kc4!
    • 1.Sa5?
      • 1...Ka6
        • 2.Qb6#
      • 1...Ka4!
    • 1.Se5?
      • threat
        • 2.Qa5#
      • 1...Ka6
        • 2.Qb6#
      • 1...Ka4!
    • 1.Qb6+?
      • 1...Kc4
        • 2.Sa5#
      • 1...Ka4!
  • Keys
    • 1.Kc2!
      • 1...Ka4
        • 2.Qa5#
      • 1...Kc4
        • 2.Bd3#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxc6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(F)
    • K(a);S_FLIGHT,XS(E)::B(C)+S(D)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);S_FLIGHT,XS(E)::B(C)+S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT,XS(E)::B(C)+S(D)
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).