MESON Chess Problem Database

Problem Display
PID: 225578 (K6Q/2N5/4p3/4P1p1/4k1P1/4P1r1/5PPB/2N5 w - - 0 1)

Lakatos, Milos

Praca, 1995

K6Q/2N5/4p3/4P1p1/4k1P1/4P1r1/5PPB/2N5

#2

10 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4
      • 2.Qh7#
  • Tries
    • 1.Ka7?
      • 1...Rxg2
        • 2.Qa8#
      • 1...Rxg4
        • 2.Qh7#
      • 1...Rf3
        • 2.Qa8#
      • 1...Rh3
        • 2.Qa8#
      • 1...Rxe3!
    • 1.Qb8?
      • 1...Rxg2
        • 2.Qb7#
      • 1...Rxe3
        • 2.Qb4#
      • 1...Rxg4
        • 2.Qb1#
      • 1...Rf3
        • 2.Qb1#
        • 2.Qb4#
        • 2.Qb7#
      • 1...Rh3
        • 2.Qb1#
        • 2.Qb4#
        • 2.Qb7#
      • 1...Kxe5!
  • Keys
    • 1.Qe8!
      • 1...Kxe5
        • 2.Qxe6#
      • 1...Rxg2
        • 2.Qc6#
      • 1...Rxe3
        • 2.Qa4#
      • 1...Rxg4
        • 2.Qg6#
      • 1...Rf3
        • 2.Qa4#
        • 2.Qc6#
      • 1...Rh3
        • 2.Qa4#
        • 2.Qc6#
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);XP(F)::QAB(J)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • R(a);XP(C)::QAB(J)
        • R(a);XP(F)::QAB(J)
        • R(a);::QAB(J)
      • Refutation
        • R(a);XP(E)
    • Try
      • Q(J);
      • Vars
        • R(a);XP(C)::QAB(J)
        • R(a);XP(E)::QAR(J)
        • R(a);XP(F)::QAB(J)
      • Refutation
        • K(b);P-FLIGHT,P_SPINR(a),XP(G)
  • Actual
    • Q(J);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINP(d),P_SPINR(a),XP(G)::QAR1(J),XP(d)
      • R(a);XP(C)::QAB(J)
      • R(a);XP(E)::QAR(J)
      • R(a);XP(F)::QAB(J)
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).