MESON Chess Problem Database

Problem Display
PID: 96321 (4B1n1/1n2p3/2P1k2p/1N1Np2R/5b2/4R1p1/6Q1/1K6 w - - 0 1)

Candela Sanz, Rafael

Problemas, 1968

4B1n1/1n2p3/2P1k2p/1N1Np2R/5b2/4R1p1/6Q1/1K6

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Sd4#
      • 2.Sbc7#
    • 1...Sf6
      • 2.Sxf4#
      • 2.Sdc7#
    • 1...e4
      • 2.Qh3#
  • Tries
    • 1.c7?
      • threat
        • 2.c8Q#
        • 2.c8B#
      • 1...Bxe3
        • 2.c8Q#
        • 2.c8B#
      • 1...Bg5
        • 2.c8Q#
        • 2.c8B#
      • 1...Sa5
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd6
        • 2.Sd4#
      • 1...Sd8
        • 2.cxd8S#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sf6
        • 2.Sxf4#
      • 1...e4
        • 2.Qh3#
        • 2.c8Q#
        • 2.c8B#
      • 1...Sc5!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Qh3#
      • 1...Sd6
        • 2.Sbc7#
      • 1...Sf6
        • 2.Sdc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(c);::QAB(B)
  • Tries
    • Try
      • P(G);
      • Threat
        • P=Q
      • Vars
        • B(b);N_SPINP(c),XR(C)::P=Q
        • B(b);::P=Q
        • S(f);::P=Q
        • S(f);SBLOCK::S(D)
        • S(h);SBLOCK::S(E),XB(b)
      • Refutation
        • S(f);
  • Actual
    • R(C);N_PINP(c)
    • Threat
      • QAB(B)
    • Vars
      • S(f);SBLOCK::S(D)
      • S(h);SBLOCK::S(E)
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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).