MESON Chess Problem Database

Problem Display
PID: 185300 (8/8/1q6/b2R3B/Q2NpN2/1n3n2/1K5r/3kB1R1 w - - 0 1)

Zarur, Almiro Elias

1st HM.=, Die Schwalbe 146. TT, 1970

8/8/1q6/b2R3B/Q2NpN2/1n3n2/1K5r/3kB1R1

#2

8 + 7

1077 Boletim da UBP 1991

SOLUTION

  • SOUND
  • Tries
    • 1.Sde2+?
      • 1...Bd2
        • 2.Sc3#
      • 1...Sd2
        • 2.Sc3#
        • 2.Bf2#
      • 1...Sd4
        • 2.Bc3#
        • 2.Bb4#
        • 2.Bxa5#
      • 1...Qd4+!
    • 1.Bf2+?
      • 1...Kd2
        • 2.Sxb3#
        • 2.Sxf3#
      • 1...Be1!
  • Keys
    • 1.Sc2+!
      • 1...Qd4+
        • 2.Bc3#
      • 1...Rd2
        • 2.Bf2#
      • 1...Bd2
        • 2.Bf2#
      • 1...Sd2+
        • 2.Sb4#
      • 1...Sd4+
        • 2.Bb4#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • S(E);CHECK,P_SPINS(E)
      • Vars
        • B(f);N_PINS(E),P_SPINB(f)::S(E)
      • Refutation
        • Q(g);CHECK,P_SPINQ(g)
    • Try
      • B(A);CHECK,P_SPINB(A)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(E);CHECK,N_PINS(c),P_PINS(d),P_SPINS(E)
    • Vars
      • Q(g);CHECK,P_SPINQ(g)::R(B)+B(A)
      • R(b);P_SPINR(b)::R(B)+B(A)
      • B(f);N_PINS(E),P_SPINB(f)::R(B)+B(A)
      • S(c);CHECK,N_PINS(E),N_SPINS(d),P_SPINS(c)::QAB(D)+S(E)
      • S(c);CHECK::R(B)+B(A)
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).