MESON Chess Problem Database

Problem Display
PID: 58484 (4R3/1nRBbr2/q6r/1N1kN2p/1P6/3P4/bQn2P2/B6K w - - 0 1)

Betesa Raurell, Salvador

Chess Life, 1959

4R3/1nRBbr2/q6r/1N1kN2p/1P6/3P4/bQn2P2/B6K

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Qxa2#
    • 1...Qd6
      • 2.Qxa2#
    • 1...Qe6
      • 2.Qxa2#
    • 1...Qf6
      • 2.Qxa2#
    • 1...Qg6
      • 2.Qxa2#
    • 1...Bb1
      • 2.Qb3#
    • 1...Bb3
      • 2.Qxb3#
    • 1...Sxa1
      • 2.Qd4#
    • 1...Se1
      • 2.Qd4#
    • 1...Sa3
      • 2.Qd4#
    • 1...Se3
      • 2.Qd4#
    • 1...Sxb4
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sd6
      • 2.Rc5#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qe5#
      • 1...Rf5
        • 2.Sxe7#
      • 1...Bd6
        • 2.Sc3#
      • 1...Bf6
        • 2.Be6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Re6!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Qe5#
      • 1...Qd6
        • 2.Qxa2#
      • 1...Qe6
        • 2.Qxa2#
      • 1...Qf6
        • 2.Qxa2#
      • 1...Rf5
        • 2.Sxe7#
      • 1...Bd6
        • 2.Be6#
      • 1...Bf6
        • 2.Sf4#
      • 1...Sd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(e);N_GUARD::QAB(C),XB(a)
    • B(a);N_GUARD::QAB(C)
    • B(a);N_GUARD::QAB(C),XB(a)
    • S(b);N_GUARD,XB(A)::QAR1(C)
    • S(b);N_GUARD::QAR1(C)
    • S(b);N_GUARD,XP(F)::QAR1(C)
    • S(b);N_GUARD::QAR1(C),XS(b)
    • S(g);N_GUARD,S_CUTB(h)::R1(I)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR1(C)
      • Vars
        • R(i);N_GUARD::S(H),XB(h)
        • B(h);SBLOCK::S(G)
        • B(h);S_CUTR(f)::B(J)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • R(f);
  • Actual
    • S(H);
    • Threat
      • QAR1(C)
    • Vars
      • Q(e);N_GUARD::QAB(C),XB(a)
      • R(i);N_GUARD::S(H),XB(h)
      • B(h);S_CUTQ(e)::B(J)
      • B(h);S_CUTR(i)::S(H)
      • S(b);N_GUARD::QAR1(C),XS(b)
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).