MESON Chess Problem Database

Problem Display
PID: 109865 (6B1/4B1K1/2P1RQp1/3r4/Ppk1P1r1/1Nb5/2R5/2N2bq1 w - - 0 1)

Brabec, Juraj

Castellari Festival (Boletim da UBP), 1963

6B1/4B1K1/2P1RQp1/3r4/Ppk1P1r1/1Nb5/2R5/2N2bq1

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sa5#
    • 1...Rd2
      • 2.Sxd2#
      • 2.Sa5#
    • 1...Rd3
      • 2.Sa5#
    • 1...Rd4
      • 2.Sa5#
    • 1...Ra5
      • 2.Sd2#
      • 2.Sxa5#
    • 1...Rb5
      • 2.Sd2#
    • 1...Rc5
      • 2.Sd2#
    • 1...Re5
      • 2.Rxe5#
    • 1...Rf5
      • 2.Sd2#
      • 2.Re5#
    • 1...Rg5
      • 2.Sd2#
      • 2.Re5#
    • 1...Rh5
      • 2.Sd2#
      • 2.Re5#
    • 1...Rd6
      • 2.Rxd6#
    • 1...Rd7
      • 2.Sa5#
      • 2.Rd6#
    • 1...Rd8
      • 2.Sa5#
    • 1...Bd3
      • 2.Sd2#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Bxd5#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qc5
        • 2.Sd2#
      • 1...Rg5!
    • 1.Qd4+?
      • 1...Rxd4
        • 2.Sa5#
      • 1...Qxd4+!
  • Keys
    • 1.Re5!
      • threat
        • 2.Bxd5#
      • 1...Qd4
        • 2.Sa5#
      • 1...Qc5
        • 2.Qxf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(g);N_GUARD::S(C)
    • R(g);N_GUARD,N_PINQ(H)::S(C)
    • R(g);N_PINQ(H),OGATEB::B(K)+R(G),XR(g)
    • R(g);OGATEB::B(K)+R(G),XR(g)
    • B(a);S_CUTR(g)::S(C)
  • Tries
    • Try
      • R(G);P_PINR(g)
      • Threat
        • B(K),XR(g)
      • Vars
        • Q(b);N_GUARD::QAR1(H),XQ(b)
        • Q(b);SBLOCK::S(C)
      • Refutation
        • R(f);
    • Try
      • Q(H);CHECK
      • Vars
        • R(g);SBLOCK,XQ(H)::S(C)
      • Refutation
        • Q(b);CHECK,XQ(H)
  • Actual
    • R(G);N_SPINQ(H),P_PINR(g)
    • Threat
      • B(K),XR(g)
    • Vars
      • Q(b);SBLOCK::S(C)
      • Q(b);N_GUARD::QAB(H),XB(a)
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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).