MESON Chess Problem Database

Problem Display
PID: 49737 (4b3/3p4/4Npp1/KR1Pk3/1Q4Pn/8/4N3/2br4 w - - 0 1)

Roosendaal, Jan C

Probleemblad, 2003

4b3/3p4/4Npp1/KR1Pk3/1Q4Pn/8/4N3/2br4

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qf4#
    • 1...Bb2
      • 2.Qf4#
    • 1...Ba3
      • 2.Qf4#
    • 1...Bf4
      • 2.Qxf4#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe7#
      • 1...Bd2
        • 2.d6#
      • 1...Ba3
        • 2.Qf4#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Sf5
        • 2.Sf3#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(b);S_CUTB(a)::QAB1(B)
    • B(a);N_GUARD::QAB1(B)
    • B(a);N_GUARD::QAB1(B),XB(a)
  • Actual
    • S(G);
    • Threat
      • QAR2(B)
    • Vars
      • B(a);P_PINQ(B),S_CUTR(b)::R(E)+P(F)
      • B(a);N_GUARD::QAB1(B)
      • B(h);N_GUARD::S(G),XB(h)
      • S(c);N_GUARD::S(G)
      • P(g);SBLOCK::QAR1(B)
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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).