MESON Chess Problem Database

Problem Display
PID: 224320 (8/8/5K2/3p4/4k3/n3B2R/4n3/3Q4 w - - 0 1)

Tuxen, Harri Viggo

Aarsskrift for DSK, 1940

8/8/5K2/3p4/4k3/n3B2R/4n3/3Q4

#2

4 + 4

2048 Tuxens skakopgaver (Leif C Schmidt) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qd4#
    • 1...Sg1
      • 2.Qd4#
    • 1...Sc3
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qd4#
    • 1...Sb1
      • 2.Qc2#
      • 2.Qxb1#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sc4
      • 2.Qc2#
      • 2.Qb1#
    • 1...Sb5
      • 2.Qc2#
      • 2.Qb1#
  • Tries
    • 1.Bg5?
      • threat
        • 2.Re3#
        • 2.Qd3#
      • 1...d4
        • 2.Qh1#
      • 1...Sc1
        • 2.Re3#
        • 2.Rh4#
        • 2.Qg4#
      • 1...Sg3
        • 2.Rh4#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sc4
        • 2.Qd3#
      • 1...Sf4!
    • 1.Bh6?
      • threat
        • 2.Re3#
        • 2.Qd3#
      • 1...d4
        • 2.Qh1#
      • 1...Sc1
        • 2.Re3#
        • 2.Rh4#
        • 2.Qg4#
      • 1...Sg3
        • 2.Rh4#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sc4
        • 2.Qd3#
      • 1...Sf4!
    • 1.Qb1+?
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sxb1!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qd3#
      • 1...Sxc1
        • 2.Qg4#
      • 1...d4
        • 2.Qh1#
      • 1...Sg3
        • 2.Rh4#
      • 1...Sf4
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::QAR1(A)
    • S(a);N_GUARD::QAR1(A),XS(a)
    • S(b);N_GUARD::QAB(A),XS(b)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);SBLOCK::QAB(A)
        • S(a);N_GUARD::R(C)
        • S(b);::QAB1(A)
      • Refutation
        • S(a);
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);SBLOCK::QAB(A)
        • S(a);N_GUARD::R(C)
        • S(b);::QAB1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB(A),XS(b)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • B(B);
    • Threat
      • QAB1(A)
    • Vars
      • S(a);OGATE,XB(B)::QAR2(A)
      • P(d);SBLOCK::QAB(A)
      • S(a);N_GUARD::R(C)
      • S(a);SBLOCK::R1(C)
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).