MESON Chess Problem Database

Problem Display
PID: 62575 (1r5q/7p/1p2nR2/bBpk2p1/2N1N3/3P2Pr/5B2/K4R2 w - - 0 1)

Capraez, Friedrich

Schachzeitung der Berliner Schachgesellschaft, 1854

1r5q/7p/1p2nR2/bBpk2p1/2N1N3/3P2Pr/5B2/K4R2

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6+
      • 2.Sxf6#
    • 1...Qc8
      • 2.Rf5#
    • 1...Qd8
      • 2.Rf5#
    • 1...Qe8
      • 2.Rf5#
    • 1...Qg8
      • 2.Rf5#
    • 1...Bc3+
      • 2.Sxc3#
    • 1...Sd4
      • 2.Rd6#
    • 1...Sf4
      • 2.Bc6#
    • 1...Sc7
      • 2.Bc6#
    • 1...Sg7
      • 2.Bc6#
      • 2.Rd6#
    • 1...Sf8
      • 2.Bc6#
  • Tries
    • 1.Be3?
      • threat
        • 2.Rf5#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Bc3+
        • 2.Sxc3#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sf4
        • 2.Bc6#
      • 1...Sg7
        • 2.Bc6#
        • 2.Rd6#
      • 1...Rh1!
  • Keys
    • 1.Bg1!
      • threat
        • 2.Rf5#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Bc3+
        • 2.Sxc3#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sf4
        • 2.Bc6#
      • 1...Sg7
        • 2.Bc6#
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(j);CHECK,XR(I)::S(G),XQ(j)
    • Q(j);N_PINR(I)::R(I)
    • B(b);CHECK,N_GUARD,N_PINR(I)::S(G),XB(b)
    • S(g);N_PINR(I)::R1(I)
    • S(g);::B(H)
  • Tries
    • Try
      • B(C);
      • Threat
        • R(B)
      • Vars
        • Q(j);CHECK,XR(I)::S(G),XQ(j)
        • B(b);CHECK,N_GUARD,N_PINR(I)::S(G),XB(b)
        • S(g);N_PINR(I)::R1(I)
        • S(g);::B(H)
      • Refutation
        • R(a);N_PINR(I),P_PINR(B)
  • Actual
    • B(C);
    • Threat
      • R(B)
    • Vars
      • Q(j);CHECK,XR(I)::S(G),XQ(j)
      • B(b);CHECK,N_GUARD,N_PINR(I)::S(G),XB(b)
      • S(g);N_PINR(I)::R1(I)
      • S(g);::B(H)
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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).