MESON Chess Problem Database

Problem Display
PID: 153339 (1Nb1N3/npP5/B3p3/3kp3/R7/K1P3nr/PR1P4/Q5B1 w - - 0 1)

Zuk, Henryk

1st Prize, Wola Gulowska, 1989

1Nb1N3/npP5/B3p3/3kp3/R7/K1P3nr/PR1P4/Q5B1

#2

12 + 8

15345 Wola Gulowska Award 1989
15345 Wola Gulowska Award 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Bc4#
    • 1...Sb5+
      • 2.Rxb5#
    • 1...Sc6
      • 2.Rb5#
  • Tries
    • 1.Bxb7+?
      • 1...Sc6
        • 2.Bxc6#
        • 2.Rb5#
      • 1...Bxb7!
    • 1.Rd4+?
      • 1...Kc5
        • 2.Rd3#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...exd4!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Sf6#
        • 2.Rd6#
      • 1...Sb5+
        • 2.Rxb5#
      • 1...e4
        • 2.c4#
      • 1...Rh6
        • 2.Rd6#
      • 1...Se4
        • 2.Bc4#
      • 1...Sf5
        • 2.Sf6#
      • 1...Sh5
        • 2.Rd6#
      • 1...Sc6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);P_PINP(G),SBLOCK::B(I)
    • S(f);CHECK,N_GUARD::R(D),XS(f)
    • S(f);N_GUARD::R(D)
  • Tries
    • Try
      • B(I);CHECK,XP(g)
      • Refutation
        • B(h);XB(I)
    • Try
      • R(H);CHECK
      • Refutation
        • P(d);XR(H)
  • Actual
    • R(D);
    • Threat
      • DUALS(2)
    • Vars
      • S(f);CHECK,N_GUARD::R(D),XS(f)
      • P(d);SBLOCK::P(G)
      • R(b);::R1(D)
      • S(a);P_PINP(G),SBLOCK::B(I)
      • S(a);P_PINP(G)::S(L)
      • S(a);P_PINP(G)::R1(D)
      • S(f);N_GUARD::R(D)
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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).