MESON Chess Problem Database

Problem Display
PID: 102714 (K7/1N6/2N1P1P1/3k4/P7/8/2Q5/3B4 w - - 0 1)

Schmitt, Olivier

Europe Echecs, 1993

K7/1N6/2N1P1P1/3k4/P7/8/2Q5/3B4

#2

8 + 1

6490 yacpdb 2009
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc6!
    • 1.Qd3+?
      • 1...Kxc6
        • 2.Qd6#
      • 1...Kxe6!
    • 1.Qf5+?
      • 1...Kxc6
        • 2.Qc5#
      • 1...Kc4!
    • 1.Qd2+?
      • 1...Kc4
        • 2.Sca5#
        • 2.Se5#
        • 2.Qd4#
      • 1...Ke4
        • 2.Sd6#
      • 1...Kxc6
        • 2.Qd6#
      • 1...Kxe6!
    • 1.Qc3?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxe6!
  • Keys
    • 1.Qf2!
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc6
        • 2.Qc5#
      • 1...Kxe6
        • 2.Qf7#

Anticipated by 75332(1881)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::S(G)
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT,XS(D)::QAR1(B)
      • K(a);OGATEB,S_FLIGHT,XP(E)::QAB1(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).