MESON Chess Problem Database

Problem Display
PID: 178598 (3Q3B/2p5/1bbp4/4N3/3k1p2/1PN5/1P2P1p1/6K1 w - - 0 1)

Vazquez, Luis

Boletim da UBP, 1981

3Q3B/2p5/1bbp4/4N3/3k1p2/1PN5/1P2P1p1/6K1

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sc4#
    • 1...Kc5
      • 2.Sd3#
    • 1...Bc5
      • 2.Sc4#
      • 2.Sg4#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Sd3#
        • 2.Sd7#
      • 1...Ke3
        • 2.Sc4#
      • 1...Kc5
        • 2.Sd3#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Bd7
        • 2.Sd3#
        • 2.Sxd7#
      • 1...Be4!
    • 1.Qxd6+?
      • 1...Ke3
        • 2.Sc4#
        • 2.Sg4#
        • 2.Qd3#
      • 1...Bd5
        • 2.Sc4#
        • 2.Sg4#
      • 1...cxd6!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qf2#
      • 1...Ke3
        • 2.Sc4#
      • 1...Kc5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(f),S_FLIGHT::S(F)
  • Tries
    • Try
      • Q(G);N_PINP(f)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAR(G)+S(F),DCHECK
        • K(b);P_SPINP(f),S_FLIGHT::S(F)
        • P(f);OGATE,P_SPINP(f),XS(F)::QAB1(G),XP(f)
      • Refutation
        • B(e);
    • Try
      • Q(G);CHECK,XP(f)
      • Refutation
        • P(g);XQ(G)
  • Actual
    • Q(G);N_PINP(f),P_PINP(c)
    • Threat
      • QAB(G)
    • Vars
      • K(b);N_SPINP(c),S_FLIGHT::S(F)
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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).