MESON Chess Problem Database

Problem Display
PID: 29484 (6K1/8/6pk/3Q4/8/8/7P/2b3R1 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Probleemblad, 2001

6K1/8/6pk/3Q4/8/8/7P/2b3R1

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qg5#
    • 1...Ba3
      • 2.Qg5#
    • 1...Bg5
      • 2.Qxg5#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Rh3#
      • 1...Bg5
        • 2.Qxg5#
      • 1...g5!
    • 1.Rg4?
      • threat
        • 2.Rh4#
      • 1...Bg5
        • 2.Qxg5#
      • 1...g5!
    • 1.Qg2?
      • threat
        • 2.Qh3#
        • 2.Qxg6#
      • 1...Kh5
        • 2.Qh3#
      • 1...Bg5
        • 2.Qxg5#
      • 1...g5!
    • 1.Qe6?
      • threat
        • 2.Qh3#
        • 2.Qxg6#
      • 1...Kh5
        • 2.Qh3#
      • 1...Bg5!
    • 1.Qf7?
      • threat
        • 2.Qxg6#
        • 2.Qh7#
      • 1...Bg5
        • 2.Qh7#
      • 1...g5
        • 2.Qh7#
      • 1...Kh5!
    • 1.Qd3?
      • threat
        • 2.Qxg6#
        • 2.Qh3#
      • 1...Kh5
        • 2.Qh3#
      • 1...Be3
        • 2.Qxg6#
      • 1...g5
        • 2.Qh7#
      • 1...Bg5!
    • 1.Qe5?
      • threat
        • 2.Qh8#
      • 1...Bb2
        • 2.Qg5#
      • 1...g5!
    • 1.Qf5?
      • threat
        • 2.Rxg6#
        • 2.Qh3#
        • 2.Qxg6#
      • 1...Bg5
        • 2.Qxg5#
      • 1...g5
        • 2.Qh7#
      • 1...gxf5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qh3#
        • 2.Qh7#
      • 1...Kh5
        • 2.Qh3#
      • 1...g5
        • 2.Qh7#
      • 1...Bg5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(C)
    • B(a);N_GUARD::QAB1(C),XB(a)
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(C)
        • B(a);N_GUARD::QAB1(C),XB(a)
      • Refutation
        • P(b);
    • Try
      • Q(C);P_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT::QAR2(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
        • P(b);::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(C)
        • B(a);::QAR1(C),XP(b)
        • P(b);OGATE::QAR1(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • B(a);N_GUARD::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
        • P(b);OGATE::QAR1(C)
      • Refutation
        • P(b);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT::QAR2(C)
      • P(b);::QAR1(C)
      • B(a);::QAR1(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).