MESON Chess Problem Database

Problem Display
PID: 224112 (1QRbR1B1/7P/3P4/1P1n4/1p1k1p2/5r2/2PP1n2/2K3B1 w - - 0 1)

Tuxen, Harri Viggo

Aarsskrift for DSK, 1939

1QRbR1B1/7P/3P4/1P1n4/1p1k1p2/5r2/2PP1n2/2K3B1

#2

11 + 7

2048 Tuxens skakopgaver (Leif C Schmidt) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Rc4#
    • 1...Sf6
      • 2.Rc4#
    • 1...Sc7
      • 2.Qa7#
      • 2.Qb6#
  • Tries
    • 1.Qa7+?
      • 1...Sb6
        • 2.Rc4#
      • 1...Bb6!
    • 1.Qb7?
      • threat
        • 2.Qxd5#
      • 1...Sc7
        • 2.Qb6#
        • 2.Qa7#
      • 1...Se7
        • 2.h8Q#
        • 2.h8B#
      • 1...Sc3
        • 2.Rc4#
      • 1...Sb6
        • 2.Re4#
        • 2.Qe4#
      • 1...Sf6
        • 2.Rc4#
      • 1...Se3!
    • 1.h8Q+?
      • 1...Sf6
        • 2.Rc4#
      • 1...Bf6!
    • 1.h8B+?
      • 1...Sf6
        • 2.Rc4#
      • 1...Bf6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxd5#
      • 1...Sc7
        • 2.Qa7#
      • 1...Se7
        • 2.h8Q#
        • 2.h8B#
      • 1...Sc3
        • 2.Rc4#
      • 1...Se3
        • 2.Qa1#
      • 1...Sb6
        • 2.Re4#
        • 2.Qe4#
      • 1...Sf6
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);::R1(I)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • S(f);::R1(I)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XS(f)
      • Vars
        • S(f);N_GUARD,S_CUTB(g)::P=Q
        • S(f);::R1(I)
      • Refutation
        • S(f);N_SPINS(a)
    • Try
      • P(G);CHECK
      • Vars
        • S(f);::R1(I)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • P(G);CHECK
      • Vars
        • S(f);::R1(I)
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XS(f)
    • Vars
      • S(f);N_GUARD,S_CUTB(g)::QAB(H)
      • S(f);N_GUARD,S_CUTB(g)::P=Q
      • S(f);::R1(I)
      • S(f);N_GUARD,N_SPINS(a),S_CUTR(b)::QAB(H)
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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).