MESON Chess Problem Database

Problem Display
PID: 264972 (2R5/1N3nK1/n5p1/1k1p4/pP2R1r1/P1QbB3/6q1/b2N1r2 w - - 0 1)

Hartong, Jan

Probleemblad, 1949

2R5/1N3nK1/n5p1/1k1p4/pP2R1r1/P1QbB3/6q1/b2N1r2

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Qxd3#
    • 1...Bxc3+
      • 2.Sxc3#
    • 1...Se5
      • 2.Sd6#
    • 1...Sg5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sh6
      • 2.Sd6#
    • 1...Sd8
      • 2.Sd6#
    • 1...Sh8
      • 2.Sd6#
    • 1...d4
      • 2.Qc6#
  • Keys
    • 1.Re6!
      • threat
        • 2.Rb6#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Rf6
        • 2.Qc6#
      • 1...Rd4
        • 2.Qc6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd6
        • 2.Sxd6#
      • 1...d4
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(b);N_PINQ(C)::QAB(C),XB(d)
    • B(a);CHECK,XQ(C)::S(A),XB(a)
    • S(k);N_GUARD,N_PINQ(C)::S(G)
    • S(k);N_GUARD::S(G)
    • S(k);N_GUARD::S(G),XS(k)
    • P(h);N_PINQ(C)::QAB1(C)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • B(a);CHECK,XQ(C)::S(A),XB(a)
      • R(b);N_PINQ(C)::QAB1(C)
      • R(f);N_PINQ(C)::QAB1(C)
      • S(i);N_GUARD::R1(I),XS(i)
      • S(k);N_GUARD::S(G),XS(k)
      • P(h);N_PINQ(C)::QAB(C),XB(d)
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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).