MESON Chess Problem Database

Problem Display
PID: 225401 (4N3/K1p3pr/1p5r/3k1PN1/B1RP4/4P1p1/2Q4b/n1q4b w - - 0 1)

Bosak, Juraj

Praca, 1953

4N3/K1p3pr/1p5r/3k1PN1/B1RP4/4P1p1/2Q4b/n1q4b

#2

9 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Bc6#
    • 1...Rh4
      • 2.Bc6#
    • 1...Rh5
      • 2.Bc6#
    • 1...Rc6
      • 2.Bxc6#
    • 1...Rd6
      • 2.Sxc7#
    • 1...g2
      • 2.e4#
    • 1...b5
      • 2.Rc5#
    • 1...g6
      • 2.Bc6#
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sxc7#
      • 1...Qxe3
        • 2.Qc4#
      • 1...Rxc6
        • 2.Bxc6#
      • 1...g2
        • 2.Qe4#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(h);N_GUARD::B(C)
    • R(h);N_GUARD::B(C),XR(h)
    • R(h);SBLOCK::S(I),XP(i)
    • P(e);S_CUTB(c)::P(B)
    • P(g);N_GUARD::R1(D)
    • P(j);S_CUTR(h)::B(C)
  • Actual
    • R(D);
    • Threat
      • S(I),XP(i)
    • Vars
      • Q(b);N_GUARD,XP(B)::QAB1(A)
      • R(h);OGATE,XR(D)::B(C),XR(h)
      • P(e);S_CUTB(c)::QAB1(A)
      • P(j);N_GUARD,S_CUTR(h)::S(I)
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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).