MESON Chess Problem Database

Problem Display
PID: 81033 (Q7/2K2b1p/4p1RP/2p3nR/5k2/3Pp2p/2N1Pp1p/6b1 w - - 0 1)

Pituk, Alexander

Smer, 1991

Q7/2K2b1p/4p1RP/2p3nR/5k2/3Pp2p/2N1Pp1p/6b1

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Kg3
      • 2.Qf3#
    • 1...Kg4
      • 2.Qf3#
    • 1...Ke5
      • 2.Qe4#
    • 1...Kf5
      • 2.Qe4#
    • 1...Sf3
      • 2.Qxf3#
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qxg5#
      • 1...Ke5
        • 2.Qe4#
        • 2.Qxg5#
      • 1...Kf5
        • 2.Qe4#
        • 2.Qxg5#
      • 1...Sf3
        • 2.Rg4#
        • 2.Rf6#
        • 2.Qxf3#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Se4
        • 2.Rg4#
        • 2.Qf3#
        • 2.Qxe4#
        • 2.Qg4#
      • 1...hxg2!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Rhxg5#
        • 2.Rgxg5#
        • 2.Qe4#
      • 1...Sxf3!
    • 1.Qe4+?
      • 1...Kg3
        • 2.Rhxg5#
        • 2.Rgxg5#
        • 2.Qf3#
      • 1...Sxe4!
    • 1.Qa4+?
      • 1...Kg3
        • 2.Rhxg5#
        • 2.Rgxg5#
      • 1...Ke5
        • 2.Rhxg5#
        • 2.Qe4#
      • 1...Kf5
        • 2.Rhxg5#
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...c4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxg5#
      • 1...Kg3
        • 2.Qxg5#
      • 1...Kg4
        • 2.Qxg5#
      • 1...Ke5
        • 2.Qxg5#
      • 1...Kf5
        • 2.Qxg5#
      • 1...Sf3
        • 2.Qf6#
      • 1...Se4
        • 2.Qh4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);P_SPINS(h),S_FLIGHT::QAR1(H)
    • K(f);P-FLIGHT,P_SPINS(h)::QAB1(H)
    • S(h);N_GUARD::QAR1(H),XS(h)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XS(h)
      • Refutation
        • P(e);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • S(h);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • S(h);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR1(H),XS(h)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(h)
    • Vars
      • K(f);P_SPINS(h),S_FLIGHT::QAR2(H),XS(h)
      • K(f);P-FLIGHT,P_SPINS(h)::QAR1(H),XS(h)
      • S(h);::QAR2(H)
      • S(h);OGATE::QAR2(H)
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).