MESON Chess Problem Database

Problem Display
PID: 80128 (1brrbq1n/p2RnkpB/Q7/1N1N2B1/5p1K/5R2/8/8 w - - 0 1)

Savournin, Jacques

Comm., Probleme, 1964

1brrbq1n/p2RnkpB/Q7/1N1N2B1/5p1K/5R2/8/8

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Rxf4#
    • 1...Sg6+
      • 2.Qxg6#
    • 1...g6
      • 2.Qf6#
  • Keys
    • 1.Sdc7!
      • threat
        • 2.Sd6#
        • 2.Rxf4#
        • 2.Qa2#
        • 2.Qe6#
      • 1...Sg6+
        • 2.Qxg6#
      • 1...Rxc7
        • 2.Rxf4#
      • 1...Rxd7
        • 2.Qe6#
      • 1...Bxc7
        • 2.Qa2#
      • 1...Bxd7
        • 2.Sd6#
      • 1...Qg8
        • 2.Rxf4#
      • 1...g6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(g);S_CUTB(f)::R(A),XP(a)
    • S(k);CHECK,N_GUARD::QAB1(F),XS(k)
    • P(e);N_GUARD::QAR1(F)
  • Actual
    • S(D);
    • Threat
      • DUALS(4)
    • Vars
      • S(k);CHECK,N_GUARD::QAB1(F),XS(k)
      • R(g);XS(D)::R(A),XP(a)
      • R(h);N_SPINS(c),XR(G)::QAB1(F)
      • B(f);XS(D)::QAB(F)
      • B(i);N_SPINS(c),XR(G)::S(C)
      • Q(j);::R(A),XP(a)
      • P(e);N_GUARD::QAR1(F)
HTML5 logo

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).