MESON Chess Problem Database

Problem Display
PID: 137263 (q4N2/2rp3n/2p2p2/6pQ/RB1k2N1/1B1p1P2/1P4K1/rnb5 w - - 0 1)

Supp, Walter

Freie Presse, 1999

q4N2/2rp3n/2p2p2/6pQ/RB1k2N1/1B1p1P2/1P4K1/rnb5

#2

9 + 12

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qc8
      • 2.Ba3#
    • 1...Qd8
      • 2.Ba3#
    • 1...Qe8
      • 2.Ba3#
    • 1...Sc3
      • 2.bxc3#
    • 1...c5
      • 2.Bc3#
    • 1...d5
      • 2.Se6#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.Qg6?
      • threat
        • 2.Qe4#
      • 1...Qe8
        • 2.Ba3#
      • 1...Sc3
        • 2.bxc3#
      • 1...c5
        • 2.Bc3#
      • 1...f5
        • 2.Qd6#
      • 1...d5
        • 2.Se6#
      • 1...Sd2!
    • 1.Qxh7?
      • threat
        • 2.Qe4#
      • 1...Qe8
        • 2.Ba3#
      • 1...Sc3
        • 2.bxc3#
      • 1...c5
        • 2.Bc3#
      • 1...f5
        • 2.Qg7#
        • 2.Qh8#
      • 1...d5
        • 2.Se6#
      • 1...Sd2!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qe4#
      • 1...Qxe8
        • 2.Ba3#
      • 1...Sd2
        • 2.Qe3#
      • 1...Sc3
        • 2.bxc3#
      • 1...c5
        • 2.Bc3#
      • 1...f5
        • 2.Qe5#
      • 1...d5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(l);N_GUARD::R(E)+B(F)
    • S(b);OGATE::P(A),XS(b)
    • P(g);P_PINP(D),SBLOCK::R(E)+B(F),DCHECK
    • P(j);N_GUARD::S(I)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • Q(l);N_GUARD::R(E)+B(F)
        • S(b);OGATE::P(A),XS(b)
        • P(g);P_PINP(D),SBLOCK::R(E)+B(F),DCHECK
        • P(h);OGATE::QAR2(H)
        • P(j);N_GUARD::S(I)
      • Refutation
        • S(b);
    • Try
      • Q(H);XS(k)
      • Threat
        • QAR1(H)
      • Vars
        • Q(l);N_GUARD::R(E)+B(F)
        • S(b);OGATE::P(A),XS(b)
        • P(g);P_PINP(D),SBLOCK::R(E)+B(F),DCHECK
        • P(j);N_GUARD::S(I)
      • Refutation
        • S(b);
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • Q(l);N_GUARD,XQ(H)::R(E)+B(F)
      • S(b);S_CUTB(c)::QAB1(H)
      • S(b);OGATE::P(A),XS(b)
      • P(g);P_PINP(D),SBLOCK::R(E)+B(F),DCHECK
      • P(h);N_GUARD::QAB1(H)
      • P(j);N_GUARD::S(I)
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).