MESON Chess Problem Database

Problem Display
PID: 89725 (1rq1k3/2p5/1p2BR1b/6P1/5Pp1/3R4/8/3Q1K2 w - - 0 1)

Marin y Llovet, Valentin

Zlata Praha, 1907

1rq1k3/2p5/1p2BR1b/6P1/5Pp1/3R4/8/3Q1K2

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc8?
      • threat
        • 2.Re3#
        • 2.Qe2#
        • 2.Qe1#
      • 1...Ke7
        • 2.Re3#
        • 2.Qe2#
        • 2.Qe1#
      • 1...Bf8!
  • Keys
    • 1.Re3!
      • threat
        • 2.Bxc8#
      • 1...Qa6+
        • 2.Bc4#
      • 1...Ke7
        • 2.Bxc8#
      • 1...Qxe6
        • 2.Rexe6#
      • 1...Qd7
        • 2.Qxd7#
      • 1...Qb7
        • 2.Qd7#
      • 1...Qd8
        • 2.Bd7#
      • 1...Bf8
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);XQ(f)
      • Threat
        • DUALS(3)
      • Refutation
        • B(c);
  • Actual
    • R(C);
    • Threat
      • R(C)+B(F),XQ(f)
    • Vars
      • Q(f);CHECK,N_GUARD::R(C)+B(F)
      • K(g);P-FLIGHT::R(C)+B(F),XQ(f)
      • Q(f);OGATE,P_SPINQ(f),XB(F)::R(C),XQ(f)
      • Q(f);N_GUARD::QAB1(A),XQ(f)
      • Q(f);N_GUARD::QAB1(A)
      • Q(f);SBLOCK::R(C)+B(F),DCHECK
      • B(c);SBLOCK::R(C)+B(F),DCHECK
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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).