MESON Chess Problem Database

Problem Display
PID: 261965 (1br5/1NpB4/6p1/P1pkp1p1/rR3R1q/1P3Pp1/NB2K2p/1n6 w - - 0 1)

Tura, Waldemar

2nd HM., Problemnoter, 1961

1br5/1NpB4/6p1/P1pkp1p1/rR3R1q/1P3Pp1/NB2K2p/1n6

#2

10 + 13

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Sc3#
    • 1...Sa3
      • 2.Sc3#
    • 1...Sc3+
      • 2.Sxc3#
    • 1...c4
      • 2.bxc4#
    • 1...e4
      • 2.fxe4#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Rxc5#
      • 1...Re4+
        • 2.fxe4#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Rxa5
        • 2.Sb4#
      • 1...Rc4
        • 2.bxc4#
      • 1...Ba7!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Bc6#
      • 1...Qc4+
        • 2.bxc4#
      • 1...Qe4+
        • 2.fxe4#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...c6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::S(A)
    • S(a);CHECK,N_GUARD::S(A),XS(a)
    • P(f);OGATE::P(D),XP(f)
    • P(h);OGATE::P(E),XP(h)
  • Tries
    • Try
      • R(F);P_PINP(f)
      • Threat
        • R1(F),XP(f)
      • Vars
        • R(d);CHECK,OGATE::P(E),XR(d)
        • S(a);CHECK,N_GUARD::S(A),XS(a)
        • R(d);N_GUARD,XP(H)::S(A)
        • R(d);OGATE::P(D),XR(d)
      • Refutation
        • B(l);
  • Actual
    • R(G);
    • Threat
      • B(J)
    • Vars
      • Q(e);CHECK,OGATE::P(D),XQ(e)
      • Q(e);CHECK,OGATE::P(E),XQ(e)
      • S(a);CHECK,N_GUARD::S(A),XS(a)
      • P(k);SBLOCK::B(J)
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).