MESON Chess Problem Database

Problem Display
PID: 163464 (2KQRn2/1pN4p/bP2p1pP/r3k1B1/rN4P1/b1p2P2/1pPp4/1n6 w - - 0 1)

van Gool, Johann Christoffel

Probleemblad, 1978

2KQRn2/1pN4p/bP2p1pP/r3k1B1/rN4P1/b1p2P2/1pPp4/1n6

#2

11 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sd3#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Bd3
      • 2.Sxd3#
    • 1...Bb5
      • 2.Qd5#
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sd3#
        • 2.Qf6#
        • 2.Qc7#
        • 2.Qd4#
        • 2.Qd5#
        • 2.Qd6#
      • 1...Rxb4
        • 2.Qd6#
      • 1...Rxb5
        • 2.Sd3#
      • 1...Bxb4
        • 2.Qd4#
      • 1...Bxb5
        • 2.Qd5#
      • 1...d1Q
        • 2.Qf6#
      • 1...d1R
        • 2.Qf6#
      • 1...Sd7
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(g);S_CUTB(i)::S(C)
    • R(g);N_GUARD::QAR1(J),XR(g)
    • B(i);N_GUARD::S(C),XB(i)
    • B(i);S_CUTR(g)::QAR1(J)
  • Actual
    • S(H);
    • Threat
      • DUALS(6)
    • Vars
      • R(f);XS(C)::QAB1(J)
      • R(g);XS(H)::S(C)
      • B(d);XS(C)::QAB1(J)
      • B(i);XS(H)::QAR1(J)
      • P(c);::QAB1(J)
      • S(n);::QAB(J)
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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).