MESON Chess Problem Database

Problem Display
PID: 52779 (2N1q3/2b1rnN1/3p2Bp/BP1k2pK/3P1P2/1pPP1n2/3pP3/3b4 w - - 0 1)

Ferreau, Wilhelm

Schach-Echo, 1933

2N1q3/2b1rnN1/3p2Bp/BP1k2pK/3P1P2/1pPP1n2/3pP3/3b4

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb5
      • 2.Sxe7#
    • 1...Qc6
      • 2.Sxe7#
    • 1...Qg8
      • 2.Sxe7#
    • 1...Qh8
      • 2.Sxe7#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Bb8
      • 2.Sb6#
    • 1...S3e5
      • 2.Be4#
    • 1...S7e5
      • 2.e4#
  • Keys
    • 1.Bb6!
      • threat
        • 2.c4#
      • 1...Qxb5
        • 2.Sxe7#
      • 1...Bxb6
        • 2.Sxb6#
      • 1...Qc6
        • 2.Sxe7#
      • 1...S3e5
        • 2.Be4#
      • 1...S7e5
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(l);N_GUARD,XP(G)::S(K),XR(j)
    • Q(l);N_GUARD::S(K),XR(j)
    • B(i);N_GUARD::S(K),XB(i)
    • B(i);N_GUARD::S(K)
    • S(d);P_PINP(A),S_CUTR(j)::B(I)
    • S(k);P_PINB(I),S_CUTR(j)::P(A)
  • Actual
    • B(F);
    • Threat
      • P(B)
    • Vars
      • Q(l);N_GUARD,XP(G)::S(K),XR(j)
      • B(i);XB(F)::S(K),XB(i)
      • Q(l);N_GUARD::S(K),XR(j)
      • S(d);P_PINP(A),S_CUTR(j)::B(I)
      • S(k);P_PINB(I),S_CUTR(j)::P(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).