MESON Chess Problem Database

Problem Display
PID: 23352 (1Nr1Q3/2B5/1P6/k2p3K/3p4/PP6/1nP5/1n2b3 w - - 0 1)

Fritz, Jindrich

Ruch, 1947

1Nr1Q3/2B5/1P6/k2p3K/3p4/PP6/1nP5/1n2b3

#2

8 + 7

5510 Vybrane Sachove Problemy 1979

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.b7#
    • 1...Bf2
      • 2.b4#
    • 1...Bg3
      • 2.b4#
    • 1...Bh4
      • 2.b4#
    • 1...Sd2
      • 2.b4#
    • 1...Sc3
      • 2.b4#
    • 1...Sd1
      • 2.Qa4#
    • 1...Sd3
      • 2.Qa4#
    • 1...Sa4
      • 2.Qxa4#
    • 1...Sc4
      • 2.Qa4#
  • Keys
    • 1.c4!
      • threat
        • 2.Qb5#
      • 1...Rxe8
        • 2.b7#
      • 1...Sxa3
        • 2.Qxe1#
      • 1...Sxc4
        • 2.Qa4#
      • 1...dxc4
        • 2.Qe5#
      • 1...dxc4 ep
        • 2.b4#
      • 1...Sc3
        • 2.b4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(g);N_GUARD::B(F)+P(E)
    • B(b);N_GUARD::P(C)
    • S(a);S_CUTB(b)::P(C)
    • S(c);N_GUARD::QAR1(H)
    • S(c);N_GUARD::QAR1(H),XS(c)
  • Actual
    • P(A);
    • Threat
      • QAR1(H)
    • Vars
      • R(g);N_GUARD,XQ(H)::B(F)+P(E)
      • S(a);N_GUARD,XP(B)::QAB(H),XB(b)
      • S(c);N_GUARD,XP(A)::QAR1(H)
      • P(f);OGATEB,XP(A)::QAR(H)
      • P(d);EP,S_CUTB(b),XP(A)::P(C)
      • S(a);S_CUTB(b)::P(C)
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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).