MESON Chess Problem Database

Problem Display
PID: 159984 (Q1NN4/5b2/6r1/1P2p2r/1P1k1n2/1PR5/3P3B/1KR5 w - - 0 1)

Sarkits, Anatoly L

Schach, 2001

Q1NN4/5b2/6r1/1P2p2r/1P1k1n2/1PR5/3P3B/1KR5

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Bxg1#
    • 1...Ra6
      • 2.Bg1#
    • 1...Rb6
      • 2.Bg1#
    • 1...Rd6
      • 2.Bg1#
    • 1...Re6
      • 2.Bg1#
    • 1...Rf6
      • 2.Bg1#
    • 1...Rh6
      • 2.Bg1#
  • Tries
    • 1.Re3?
      • threat
        • 2.Qe4#
      • 1...e4
        • 2.Qxe4#
      • 1...Bd5
        • 2.Qa1#
      • 1...Sd5
        • 2.Rc4#
      • 1...Rc6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe4#
      • 1...Rxd6
        • 2.Bg1#
      • 1...e4
        • 2.Qxe4#
      • 1...Bd5
        • 2.Qa7#
      • 1...Sd5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD,P_PINR(B)::B(D),XR(e)
    • R(e);N_GUARD::B(D)
  • Tries
    • Try
      • R(F);
      • Threat
        • QAR1(I)
      • Vars
        • P(c);::QAR1(I),XP(c)
        • B(f);SBLOCK::QAB(I)
        • S(b);S_CUTB(f)::R1(B)
      • Refutation
        • R(e);
  • Actual
    • S(J);
    • Threat
      • QAR1(I)
    • Vars
      • R(e);N_GUARD,XS(J)::B(D)
      • P(c);::QAR1(I),XP(c)
      • B(f);SBLOCK::QAB(I)
      • S(b);SBLOCK::S(K)
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).