MESON Chess Problem Database

Problem Display
PID: 108291 (r7/1q6/2pP1PpN/2P1p1pp/R1B1kPQ1/2B2r2/5PP1/4n1K1 w - - 0 1)

Fleck, Ferenc

Melbourne Club, 1953

r7/1q6/2pP1PpN/2P1p1pp/R1B1kPQ1/2B2r2/5PP1/4n1K1

#2

12 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf4
      • 2.Qe2#
    • 1...Sc2
      • 2.Qxf3#
      • 2.gxf3#
    • 1...Sd3
      • 2.Qxf3#
      • 2.gxf3#
    • 1...exf4
      • 2.Qe6#
    • 1...gxf4
      • 2.Qxg6#
  • Tries
    • 1.fxe5+?
      • 1...Rf4
        • 2.Qe2#
      • 1...hxg4!
    • 1.fxg5+?
      • 1...Rf4
        • 2.Qe2#
      • 1...hxg4!
    • 1.f5+?
      • 1...Rf4
        • 2.Qe2#
      • 1...hxg4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxe5#
      • 1...Kxf4
        • 2.Qxe5#
      • 1...Qe7
        • 2.Ba6#
      • 1...Re8
        • 2.Bb5#
      • 1...Sd3
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(b);OGATE,P_SPINR(b),SBLOCK,XP(G)::QAR2(H)
    • P(d);OGATEB,P_SPINP(d),SBLOCK,XP(G)::QAR2(H)
    • P(e);OGATE,P_SPINP(e),SBLOCK,XP(G)::QAB(H),XP(h)
  • Tries
    • Try
      • P(G);CHECK,XP(d)
      • Vars
        • R(b);OGATE,P_SPINR(b),SBLOCK::QAR2(H)
      • Refutation
        • P(f);XQ(H)
    • Try
      • P(G);CHECK,XP(e)
      • Vars
        • R(b);OGATE,P_SPINR(b),SBLOCK::QAR2(H)
      • Refutation
        • P(f);XQ(H)
    • Try
      • P(G);CHECK
      • Vars
        • R(b);OGATE,P_SPINR(b),SBLOCK::QAR2(H)
      • Refutation
        • P(f);XQ(H)
  • Actual
    • Q(H);P_PINP(d)
    • Threat
      • QAR1(H),XP(d)
    • Vars
      • K(c);N_SPINP(d),P-FLIGHT,XP(G)::QAB1(H),XP(d)
      • Q(i);N_GUARD::R(E)+B(F)
      • R(j);N_GUARD::R(E)+B(F)
      • S(a);SBLOCK::R(E)+B(F),DCHECK
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).