MESON Chess Problem Database

Problem Display
PID: 274172 (4N1B1/4R1P1/r2b2Pp/R1n1nk1K/4pNpp/4Q3/bB6/5r1q w - - 0 1)

Fleck, Ferenc

Springaren, 1991

4N1B1/4R1P1/r2b2Pp/R1n1nk1K/4pNpp/4Q3/bB6/5r1q

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Be6#
      • 2.Rf7#
    • 1...Se6
      • 2.Rf7#
    • 1...Sf3
      • 2.Qxe4#
    • 1...Sc4
      • 2.Be6#
      • 2.Rf7#
    • 1...Sc6
      • 2.Sxd6#
  • Tries
    • 1.Be6+?
      • 1...Sxe6
        • 2.Rf7#
      • 1...Bxe6!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sd4#
      • 1...Rd1
        • 2.Qf4#
      • 1...Sb3
        • 2.Be6#
      • 1...Se6
        • 2.Rf7#
      • 1...Sf3
        • 2.Qxe4#
      • 1...Sc6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(g);P_SPINS(h),S_CUTB(c)::R(G)
    • S(h);P_SPINS(g),S_CUTQ(b)::QAB1(B),XP(d)
    • S(h);P_SPINS(g),S_CUTR(j)::S(I),XB(k)
  • Tries
    • Try
      • B(J);CHECK
      • Vars
        • S(g);P_SPINS(h),XB(J)::R(G)
      • Refutation
        • B(c);XB(J)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(a);N_GUARD::QAR1(B)
      • S(g);N_GUARD,P_SPINS(h),S_CUTB(c)::B(J)
      • S(g);P_SPINS(h),SBLOCK,S_CUTB(c)::R(G)
      • S(h);P_SPINS(g),S_CUTQ(b)::QAB1(B),XP(d)
      • S(h);P_SPINS(g),S_CUTR(j)::S(I),XB(k)
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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).