MESON Chess Problem Database

Problem Display
PID: 94570 (5B2/KpR5/5p2/NpR3N1/1p1k1r1r/3p2Qp/6b1/n5nq w - - 0 1)

Fleck, Ferenc

Magasinet, 1935

5B2/KpR5/5p2/NpR3N1/1p1k1r1r/3p2Qp/6b1/n5nq

#2

7 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Qxf2#
    • 1...Re4
      • 2.Rd7#
    • 1...Rfg4
      • 2.Qf2#
    • 1...Bf3
      • 2.Qf2#
    • 1...Be4
      • 2.Se6#
    • 1...Sc2
      • 2.Sb3#
    • 1...Sb3
      • 2.Sxb3#
    • 1...Sf3
      • 2.Qf2#
    • 1...f5
      • 2.Bg7#
  • Tries
    • 1.Qxf4+?
      • 1...Be4
        • 2.Se6#
        • 2.Rd7#
        • 2.Qf2#
      • 1...Rxf4!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qe3#
      • 1...Kxc5
        • 2.Rd7#
      • 1...Rf3
        • 2.Qd6#
      • 1...Re4
        • 2.Rd7#
      • 1...Bf3
        • 2.Qf2#
      • 1...Be4
        • 2.Se6#
      • 1...Sc2
        • 2.Sb3#
      • 1...Sf3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(i);N_GUARD::QAB(A),XR(i)
    • R(i);S_CUTB(d)::R(F)
    • R(i);N_GUARD::QAB(A)
    • B(d);S_CUTR(i)::QAB(A)
    • B(d);SBLOCK::S(D)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • S(b);S_CUTR(i)::QAB(A)
    • P(l);OGATEB::B(G)
  • Tries
    • Try
      • Q(A);CHECK,XR(i)
      • Refutation
        • R(j);XQ(A)
  • Actual
    • R(F);
    • Threat
      • QAB1(A)
    • Vars
      • K(h);S_FLIGHT,XR(C)::B(G)+R(F)
      • R(i);OGATE::QAR2(A)
      • R(i);S_CUTB(d)::R(F)
      • B(d);S_CUTR(i)::QAB(A)
      • B(d);SBLOCK::S(D)
      • S(a);N_GUARD::S(B)
      • S(b);S_CUTR(i)::QAB(A)
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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).